Citations with the tag: PHOTOEMISSION
Results 1 - 50
- Excited-state photoemission with combined laser/synchrotron pulse excitation from C60 chemisorbed...
Quast, T.; Bellmann, R.; Winter, B.; Gatzke, J.; Hertel, I. V. // Journal of Applied Physics; 2/1/1998, Vol. 83 Issue 3, p1642Presents information pertaining the photoemission of C60 chemisorbed through the use of one-photon photoelectron spectroscopy. Observation of the significant peak broadening relative to the thick film features; Consistency of the monolayer system; Information on the use of the laser system.
- Normal incidence grating spectrometer designed for inverse photoemission studies in the range 10�30 eV.
Johnson, P. D.; Hulbert, S. L.; Garrett, R. F.; Howells, M. R. // Review of Scientific Instruments; Jul86, Vol. 57 Issue 7, p1324We describe a normal incidence grating spectrometer for use in inverse photoemission studies of surfaces. We show that by operating in a configuration where the source and image are displaced from the Rowland Circle it is possible to construct a useful spectrometer that can be attached to any...
- Realization of an electron spectrometer using a toroidal magnetic deflector.
L�v�que, G.; Robin, J. // Review of Scientific Instruments; Aug87, Vol. 58 Issue 8, p1456We present some aspects of the realization of a new angular resolved photoemission spectrometer using a magnetic deflector. The photoelectrons are dispersed according to their energy and emission angle and focused onto a detector where the band structure appears in real time. The prototype has...
- Excitation mechanisms in dye-doped organic light-emitting devices.
Pschenitzka, F.; Sturm, J. C. // Applied Physics Letters; 12/24/2001, Vol. 79 Issue 26, p4354In an organic light-emitting device with a polymeric matrix concurrently doped with two different dyes, the photoluminescence (PL) and electroluminescence (EL) spectra are observed to be very different, with both dyes emitting in PL and only one in EL at room temperature. A simple model based on...
- X-ray photoelectron microscopy of the C 1s core level of free-standing single-wall carbon nanotube bundles.
Goldoni, A.; Larciprete, R.; Gregoratti, L.; Kaulich, B.; Kiskinova, M.; Zhang, Y.; Dai, H.; Sangaletti, L.; Parmigiani, F. // Applied Physics Letters; 3/25/2002, Vol. 80 Issue 12, p2165Core level photoemission spectra from a free-standing bundle of single-wall carbon nanotubes have been measured using a high-flux soft x-ray spectromicroscope. The good signal-to-noise ratio for the C1s emission provides information on fundamental quantities such as the core-hole lifetime and...
- High-speed electrical sampling by fs photoemission.
Marcus, R. B.; Weiner, Andrew M.; Abeles, Joseph H.; Lin, Paul S. D. // Applied Physics Letters; 8/11/86, Vol. 49 Issue 6, p357We propose and demonstrate a new method for contactless sampling of high-speed electrical signals, by spectral analysis of photoelectrons emitted when a signal-carrying conductor is illuminated by ultrashort light pulses. We present time-resolved measurements of sub-ns electrical signals on a...
- Response to ��Comment on �X-ray photoemission core level determination of the GaSb/AlSb heterojunction valence-band discontinuity� ��[Appl. Phys. Lett. 50, 1763 (1987)].
Gualtieri, G. J.; Schwartz, G. P.; Nuzzo, R. G.; Sunder, W. A. // Applied Physics Letters; 6/15/87, Vol. 50 Issue 24, p1763Responds on the article, entitled 'X-ray photoemission core level determination of the GaSb/AlSb heterojunction valence-band discontinuity,' by Gualtieri and others. Comparison of core level energy differences measured for the heterojunction; Authors' comparison of their results with...
- Comment on ��X-ray photoemission core level determination of the GaSb/AlSb heterojunction valence-band discontinuity��[Appl. Phys. Lett. 49, 1037 (1986)].
Ley, L. // Applied Physics Letters; 6/15/87, Vol. 50 Issue 24, p1763Comments on the article, titled 'X-ray photoemission core level determination of the GaSb/AlSb heterojunction valence-band discontinuity,' by Gualtieri and others. Comparison of the core level energy differences measured for the heterojunction; Authors' comparison of their results with...
- Picosecond temporal resolution photoemissive sampling.
Weiner, A. M.; Lin, P. S. D.; Marcus, R. B. // Applied Physics Letters; 8/3/87, Vol. 51 Issue 5, p358Sampling measurements of electrical transients generated photoconductively on a 5-�m gold coplanar transmission line on GaAs were performed via multiphoton photoemission. A temporal resolution of 5 ps was achieved, with a voltage sensitivity of 10 mV/(Hz)1/2. These results confirm that the...
- Charge Distribution in a MIS Insulator from Spectral Characteristics of Photoemission Current.
Levin, M. N.; Bormontov, E. N.; Volkov, O. V.; Ostroukhov, S. S.; Tatarintsev, A. V. // Technical Physics; Mar2001, Vol. 46 Issue 3, p316The field dependence of photoemission currents in a MIS structure was derived for the case when the space charge is randomly distributed over the insulating layer. It was found analytically that the position of the top of the potential barrier for electrons photoinjected from the gate into the...
- Initial stages in the formation of a CsAu surface alloy.
Knat�ko, M. V.; Lapushkin, M. N.; Paleev, V. I. // Technical Physics Letters; May98, Vol. 24 Issue 5, p390Threshold photoemission spectroscopy is used to study the formation of a CsAu alloy during deposition of Cs on an Au substrate. It is shown that both the Cs surface layer and the CsAu near-surface alloy undergo indirect photoexcitation. It is found that the formation of a CsAu alloy is...
- On the Possibility of Suppressing the Saturation of Photoelectric Amplification of Weak Optical Emission in Semiconductors by Forming Near-Contact Variband Layers.
Kholodnov, V. A.; Drugova, A. A. // Technical Physics Letters; Jun2001, Vol. 27 Issue 6, p504It is demonstrated that saturation of the photoelectric amplification coefficient G with increasing voltage V applied to a sample can be suppressed by introducing a variband layer near a current contact to which the minority charge carriers are driven by the electric field. This effect is...
- Measurement of the absolute spectral response of an inverse photoemission detector.
Avci, Recep; Cai, Qing; Lapeyre, Gerald J. // Review of Scientific Instruments; Dec89, Vol. 60 Issue 12, p3643The absolute quantum yield of an inverse photoemission detector is reported. The detector consists of a 650-� KBr photoemission film on the mouth of a channeltron with either a CaFe or a SrF[sub 2] window for a low-pass cutoff filter. The spectral response for the CaF[sub 2] window peaks at...
- Ultraviolet inverse photoemission spectrograph with parallel multichannel isochromat acquisition.
Sancrotti, M.; Braicovich, L.; Chemelli, C.; Ciccacci, F.; Puppin, E.; Trezzi, G.; Vescovo, E. // Review of Scientific Instruments; Mar91, Vol. 62 Issue 3, p639A simple and cost effective inverse photoemission spectrograph based on a spherical grating with very large optical acceptance (f/2.8) is described. The system works in the 10- 25 eV photon energy range. The dispersed photons are detected by a detector assembly based on a microchannelplate and...
- Electronic and chemical properties of mixed-metal oxides: Adsorption and reaction of NO on SrTiO[sub 3](100).
Rodriguez, J. A.; Azad, S.; Wang, L.-Q.; Garcia, J.; Etxeberria, A.; Gonz�lez, L. // Journal of Chemical Physics; 4/8/2003, Vol. 118 Issue 14, p6562The interaction of NO with SrTiO[SUB3](100) surfaces was investigated using thermal desorption, photoemission, and first-principles density-functional calculations. The crystals used in the experiments exposed mainly (>80%) the TiO[SUB2]-terminated face of SrTiO[SUB3](100). On the stoichiometric...
- The relationship between shape resonances and bond lengths.
Piancastelli, M. N.; Lindle, D. W.; Ferrett, T. A.; Shirley, D. A. // Journal of Chemical Physics; 3/1/87, Vol. 86 Issue 5, p2765A discussion is presented on the general nature of shape resonances in small molecules and how they may relate to molecular bond lengths. Criteria for assigning photoabsorption features as shape resonances are described, and the usefulness of photoemission experiments to such assignments is...
- Photoemissive properties of binary magnesium�barium and aluminium�lithium metallic alloys.
Tkachenko, V. G.; Maksimchuk, I. N.; Shklover, V. V.; Katrich, G. A.; Klimov, V. V. // Applied Physics A: Materials Science & Processing; 1996, Vol. 62 Issue 3, p285The photoemissive properties of binary Mg�Ba and Al�Li metallic alloys, suitable as high-current photocathodes, were studied. The photoelectron energy-distribution curves and the quantum yield�s spectral characteristics are presented for these materials. The concept of forming the advanced...
- UV-photoelectron spectroscopy at highest resolution � direct access to lifetime effects in solids?
Matzdorf, R. // Applied Physics A: Materials Science & Processing; 1996, Vol. 63 Issue 6, p549Lineshapes and linewidth in angle-resolved photoemission spectra from solid surfaces contain a wealth of contributions from e.g. the photohole lifetime, the lifetime of the final state electron, and from their respective interactions with phonons and lattice imperfections. In addition, finite...
- Oscillations in the Threshold Photoemission Spectra of GaN(0001) with Submonolayer Cs Coverages.
Afanas�ev, I. V.; Benemanskaya, G. V.; Vikhnin, V. S.; Frank-Kamenetskaya, G. �.; Shmidt, N. M. // JETP Letters; 3/10/2003, Vol. 77 Issue 5, p226It is found that Cs adsorption on the n-type GaN(0001) surface generates an unusual change in the electronic properties of the surface and the near-surface space-charge layer, which leads to the appearance of photoelectron emission upon excitation in the transparent region of GaN. It is...
- Single-mode and single-beam emission from surface emitting laser diodes based on surface-mode emission.
Ko�ck, A.; Golshani, A.; Hainberger, R.; Gornik, E.; Korte, L. // Applied Physics Letters; 12/9/96, Vol. 69 Issue 24, p3638Single-mode and single-beam emission have been achieved from surface emitting laser diodes based on the surface-mode-emission technique. By employing an optimized device design and a first-order grating coupler, the laser diodes show under pulsed operation condition a single-mode emission with a...
- Field-assisted photoemission from InP/InGaAsP photocathode with p/n junction.
Niigaki, M.; Hirohata, T. // Applied Physics Letters; 10/27/97, Vol. 71 Issue 17, p2493Details the structure and photoemission characteristics of a field-assisted photocathode using a p/n junction. Achievement of quantum efficiency of photoemission to a 1.35 micrometer threshold; Layers consisting the photocathode; Difference in the photoemission mechanism between the model and a...
- Stimulated emission in ridge quantum wire laser structures measured with optical pumping and microscopic imaging methods.
Watanabe, Shinichi; Koshiba, Shyun; Yoshita, Masahiro; Sakaki, Hiroyuki; Baba, Motoyoshi; Akiyama, Hidefumi // Applied Physics Letters; 7/27/98, Vol. 73 Issue 4We report the observation of stimulated emission in ridge quantum wire (QWR) structures at temperatures from 4.7 to 290 K. To examine the origin of the stimulated emission, the spatially and spectrally resolved microscopic images of the emission were measured. It was most likely attributed to...
- Determination of frontier orbital alignment and band bending at an organic semiconductor heterointerface by combined x-ray and ultraviolet photoemission measurements.
Schlaf, R.; Parkinson, B. A.; Lee, P. A.; Nebesny, K. W.; Armstrong, N. R. // Applied Physics Letters; 8/24/98, Vol. 73 Issue 8The alignment of the highest occupied molecular orbitals (HOMO) at the tris (8-hydroxy quinoline) aluminum (Alq[sub 3])/N,N[sup ']-di-(3-methylphenyl)-N,N'diphenyl-4,4'-diaminobiphenyl (TPD) heterojunction, used in organic light-emitting diodes (OLED), was determined by growing a TPD layer in...
- Low-threshold amplified spontaneous emission in blends of conjugated polymers.
Gupta, R.; Stevenson, M.; Dogariu, A.; McGehee, M. D.; Park, J. Y.; Srdanov, V.; Heeger, A. J.; Wang, H. // Applied Physics Letters; 12/14/98, Vol. 73 Issue 24Low thresholds (~500 W/cm2) for amplified spontaneous emission (ASE) are reported in films of soluble poly(paraphenylene vinylene)-based conjugated polymer blends. Efficient Fo�rster energy transfer from the absorbing host polymer to the emitting guest polymer is observed. Emission in the...
- Resonant interband scattering of image-potential states.
Berthold, W.; G�dde, J.; Feulner, P.; H�fer, U. // Applied Physics B: Lasers & Optics; 2001, Vol. 73 Issue 8, p865Image-potential states in front of a clean Cu (100) surface were investigated by time- and angle-resolved two-photon photo-emission (2PPE). We observe a previously unknown quasi-elastic relaxation channel, which efficiently couples states with different quantum numbers, n, and parallel momenta,...
- Photoemission studies of Ru3(CO)12 adsorption and formation of Cu�Ru bimetallics on Cu(111).
Sham, T. K.; Liu, Z.-F.; Tan, K. H. // Journal of Chemical Physics; 5/1/91, Vol. 94 Issue 9, p6250Photoemission spectra of Ru3(CO)12 adsorbed on Cu(111) and its decomposition products induced by electron irradiation and annealing are reported. It is found that electron bombardment and subsequent annealing of Ru3(CO)12/Cu(111) lead to the formation of Cu�Ru bimetallic aggregates which...
- Anode modification of polyfluorene-based polymer light-emitting devices.
Fung, M. K.; Lai, S. L.; Tong, S. W.; Chan, M. Y.; Lee, C. S.; Lee, S. T.; Wu, W. W.; Inbasekaran, M.; O�Brien, J. J. // Applied Physics Letters; 8/19/2002, Vol. 81 Issue 8, p1497A glycerol-modified poly(3,4-ethylene dioxythiophene) (PEDOT): poly(styrene sulfonate) (PSS) layer was used as an anode buffer layer in polymer light-emitting devices using poly(9,9-dioctylfluorene) (F8) as the emitter. Devices with a configuration of indium tin oxide/PEDOT:PSS (with or without...
- Multicomponent structure of electron emission from the Te-related DX center in AlGaAs.
Piotrzkowski, R.; Litwin-Staszewska, E.; Suski, T.; Konczewicz, L.; Robert, J. L.; Stankiewicz, W. // Journal of Applied Physics; 3/1/93, Vol. 73 Issue 5, p2572Presents a study which examined thermal emission of electrons from resonant DX levels introduced by tellurium in AlGaAs by means of time dependent Hall effect measurements. Samples used on the study; Analysis of the emission data; Pressure variation of emission rates for emission components...
- Gatable ultrafast field-assisted photoemission to lambda=1.55 mum from In[sub 0.5]Ga[sub 0.5]As....
Parker, T.R.; Fawcett, A.H. // Applied Physics Letters; 11/21/1994, Vol. 65 Issue 21, p2711Investigates the field-assisted photoemission of indium-gallium-arsenic heterostructures. Magnitude of the photoemission wavelength; Characterization of the long-wavelength portion of the photoemissive response; Significance of a 14 picosecond device response time; Creation of Schottky contacts.
- Reaction of S[sub 2] and H[sub 2]S with Sn/Pt(111) surface alloys: Effects of metal-metal....
Rodriguez, Jose A.; Chaturvedi, Sanjay // Journal of Chemical Physics; 9/8/1998, Vol. 109 Issue 10, p4052Focuses on the use of photoemission to study the surface chemistry of S2 and H2S on polycrystalline Sn, Pt(111) and Sn/Pt(111) surface alloy. Effects of bimetallic bonding on the chemical reaction of Pt atoms; Basic bonding interactions occurring in bimetallic systems; Reactivity of Sn/Pt...
- Measurement of photoemission oscillations during molecular beam epitaxial growth (001) GaAs,....
Zinck, J.J.; Chow, D.H. // Applied Physics Letters; 6/19/1995, Vol. 66 Issue 25, p3524Investigates photoemission oscillations from (001) gallium arsenide, aluminum arsenide, aluminum gallium arsenide, indium arsenide and aluminum antimonide. Dependence of the oscillation amplitude on the substrate temperature; Utilization of a Fison V80 MBE apparatus in the process; Measurement...
- Experimental investigation of the relative importance of carrier heating and....
Girardin, Francois; Duan, Guang-Hua // Applied Physics Letters; 8/7/1995, Vol. 67 Issue 6, p771Evaluates the transverse spontaneous emission in multi-quantum-well lasers. Use of transverse spontaneous emission to characterize gain suppression in semiconductor lasers; Application of high speed semiconductor lasers to optical transmission systems; Details on the carrier heating in...
- Band alignment in organic devices: Photoemission studies of model oligomers on In[sub 2]O[sub 3].
Blyth, R. I. R.; Duschek, R.; Koller, G.; Netzer, F. P.; Ramsey, M. G. // Journal of Applied Physics; 7/1/2001, Vol. 90 Issue 1, p270The interfaces of In[sub 2]O[sub 3], a model for indium-tin-oxide (ITO), with benzene, thiophene, and benzaldehyde, models for technologically important organic molecules, are studied using angle resolved ultraviolet photoemission and work function measurements. Band alignment diagrams for...
- Near-infrared to visible up-conversion in a forward-biased Schottky diode with a p-doped channel.
Sandhu, J. S.; Heberle, A. P.; Alphenaar, B. W.; Cleaver, J. R. A. // Applied Physics Letters; 3/20/2000, Vol. 76 Issue 12, p1507Near-infrared radiation of wavelength 1.5 �m is up-converted to a visible wavelength of 818 nm by internal photoemission in a Schottky diode with a modulation p-doped channel. The near-infrared light incident upon the metal-semiconductor interface excites electrons from the metal into the...
- A photoelectron spectrometer for k-space mapping above the Fermi level.
Greber, T.; Raetzo, O.; Kreutz, T.J.; Schwaller, P.; Deichmann, W.; Wetli, E.; Osterwalder, J. // Review of Scientific Instruments; Dec1997, Vol. 68 Issue 12, p4549Describes the setup of an electron spectrometer for angle-resolved photoemission. Exploitation of a monochromatized high flux He discharge photon source; Quantification of the dispersion of the Shockley surface state on AG(111) above the Fermi energy.
- Multi-atom resonant photoemission.
Fadley, Charles S.; Arenholz, Elke; Kay, Alex W.; Garcia de Abajo, Javier; Mun, Bongjin S.; Yang, See-Hun; Hussain, Zahid; Van Hove, Michel // AIP Conference Proceedings; 2000, Vol. 506 Issue 1, p251We report here on the first measurements and theoretical considerations of an interatomic multi-atom resonant photoemission (MARPE) effect that can enhance photoelectron intensities by as much as 100% and appears to be generally observable in solid materials. MARPE occurs when the photon energy...
- Scanning aperture photoemission microscopy for magnetic imaging.
McClelland, Gary M.; Rettner, Charles T. // Applied Physics Letters; 9/4/2000, Vol. 77 Issue 10Magnetic imaging has been demonstrated by photoemission microscopy in which spatial resolution is achieved by scanning an aperture across the sample. To achieve magnetic contrast, the difference between photoemission current with right and left circularly polarized light is recorded while...
- The chemisorption of H2C[Si(CH3)3]2 and Si6(CH3)12 on Si(100) surfaces.
Sutherland, D.G.J.; Terminello, L.J.; Carlisle, J. A.; Jim�nez, I.; Himpsel, F. J.; Baines, K. M.; Shuh, D. K.; Tong, W. M. // Journal of Applied Physics; 10/1/1997, Vol. 82 Issue 7, p3567Studies the chemisorption of bis(trimethylsilyl)methane and dodecamethylcyclohexasilane on clean silicon surfaces. Use of carbon 1s core-level and valence-band photoemission spectroscopy; Deposition of carbon on the surface.
- Infrared photoelectron emission from Scandate dispenser cathodes.
Jensen, Kevin L.; Feldman, Donald W.; Virgo, Matt; O'Shea, Patrick G. // Applied Physics Letters; 8/11/2003, Vol. 83 Issue 6, p1269Nonlinear photoelectric emission from Scandate dispenser cathodes using 1.064-�m radiation in nanosecond-scale pulses has been observed. Unlike single-photon emission, the photocurrent is a strong function of both the initial lattice temperature and the applied electric field as well as laser...
- High-speed circuit measurements using photoemission sampling.
Bokor, J.; Johnson, A. M.; Storz, R. H.; Simpson, W. M. // Applied Physics Letters; 7/28/1986, Vol. 49 Issue 4, p226High-speed sampling of the voltage waveform on a microstrip transmission line is performed by exploiting the multiphoton photoelectric effect induced by a visible cw mode-locked laser source. Energy analysis of the electrons emitted from the surface of the strip line is used to infer the...
- Photoemission theory of mixed valent semiconductors.
Parlebas, J. C.; Kotani, A. // Journal of Applied Physics; 4/15/1985, Vol. 57 Issue 8, p3191Presents information on a study which analyzed the photoemission theory of mixed valent semiconductors. States of photoemission; Results; Discussion.
- Core level photoemission of iodine overlayers.
Dowben, P. A.; Kime, Y. J.; Mueller, D.; Rhodin, T. N. // Journal of Chemical Physics; 10/1/1988, Vol. 89 Issue 7, p4406We report the core level binding energies of chemisorbed iodine on Fe(110) and Fe(100). A decrease of 0.6 eV in the binding energies of the iodine core levels is observed with the increasing coverage of the chemisorbed iodine overlayer. This change in core level binding energies with coverage is...
- High efficiency photoemission from Cs--K--Te.
Bisero, D.; van Oerle, B.M. // Applied Physics Letters; 3/24/1997, Vol. 70 Issue 12, p1491Examines the photoemission properties of cesium-potassium-tellurium (Cs-K-Te) photocathode. Fabrication of Cs-K-Te film by chemical vapor deposition method; Calculation of the quantum efficiency; Dependence of quantum efficiency on potassium evaporation; Implication of photocathode high...
- The role of second-neighbor effects in photoemission: Are silicon surfaces and interfaces special?
Zhang, K. Z.; Litz, K. E.; Banaszak Holl, M. M.; McFeely, F. R. // Applied Physics Letters; 1/5/1998, Vol. 72 Issue 1A widely used assignment scheme for Si 2p core-level photoemission studies of silicon oxidation relies solely on the formal oxidation state of the silicon. The tacit assumption of this assignment methodology is that second-neighbor effects have no measurable effect on observed Si 2p binding...
- Photoemission studies of ZnSe epilayers grown on GaAs(111)B surface.
Feng, P. X.; Leckey, R. C. G.; Riley, J. D.; Brack, N.; Pigram, P. J.; Hollering, M.; Ley, L. // Journal of Applied Physics; 1/1/2001, Vol. 89 Issue 1, p710The growth and characterization of ZnSe epilayers on GaAs(111)B was studied. Insight into the formation mechanism of this type of surface, interface, and bulk has been provided by photoemission spectroscopy. When Zn and Se are deposited, Se reacts with As to form Se-As bonds. Therefore, the...
- Picosecond spin-polarized photoemission studies of magnetic materials (invited) (abstract).
Meier, F.; Vaterlaus, A.; Aeschlimann, M.; Guarisco, D. // Journal of Applied Physics; 4/15/1991, Vol. 69 Issue 8, p5003Studies the time resolution in photoemission using pulsed lasers as light sources. Results of the study.
- Laser-driven metal photocathodes for picosecond electron and x-ray pulse generation.
Anderson, Todd; Tomov, Ivan V.; Rentzepis, P. M. // Journal of Applied Physics; 5/15/1992, Vol. 71 Issue 10, p5161Deals with a study which presented the results of the photoemissive properties of several metals from the perspective of their application for high peak intensity electron pulses. Experimental setup; Discussion and conclusion.
- Interface formation of Ca with poly(p-phenylene vinylene).
Gao, Y.; Park, Ken T.; Hsieh, Bing R. // Journal of Applied Physics; 6/1/1993, Vol. 73 Issue 11, p7894Presents information on a study which investigated the interface formation of calcium with poly(p-phenylene vinylene) using x-ray photoemission spectroscopy. Deposition of calcium; Experimental details; Results and discussion; Conclusions.
- Spin polarized photoemission studies of the 3s core level in ferromagnetic systems (abstract).
Liu, Y.; Xu, J.; Huang, D-J.; Johnson, P. D. // Journal of Applied Physics; 4/15/1996, Vol. 79 Issue 8, p6507Presents an abstract of the article 'Spin Polarized Photoemission Studies of the 3s Core Level in Ferromagnetic Systems,' by Y. Liu, J. Xu, D-J. Huang and P.D. Johnson.
- Television.
Farndon, John // Science (1-59084-471-8); 2003, p44Television relies on an antenna to pick up radio waves containing a combined signal from television cameras and microphones which will result in a television program. The photoelectric effect, or the emission of electrons by a substance when struck by photons of light, is responsible for...


