TITLE

Enhancement of optical properties of CdSe pillars fabricated by the combination of electron-beam lithography and electrochemical deposition

AUTHOR(S)
Chen, Y. L.; Chen, C. C.; Jeng, J. C.; Chen, Y. F.
PUB. DATE
August 2004
SOURCE
Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1259
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Combining electron-beam lithography and electrochemical deposition, CdSe pillars can be fabricated in a specific shape and size in a well controlled manner. This simple technique provides an excellent opportunity to probe the change of optical properties of submicron structures due to size variation. Quite interestingly, it is found that the intensities of micro-photoluminescence as well as Raman scattering show an oscillatory behavior and can be enhanced at some particular diameters of CdSe pillars. This phenomenon can be well explained in terms of the resonant effects, in which the CdSe pillars can act as resonance cavities. Once the wavelengths of incident laser or the luminescence emitted from CdSe pillars are consistent with the predicted Fabry–Perot resonance, the optical properties can be greatly enhanced.
ACCESSION #
14085009

 

Related Articles

  • Microstructural, magnetic, and optical properties of the self-assembled (III1-xMnx)V quantum structure. Jeon, H. C.; Lee, S. J.; Kang, T. W.; Kim, T. W. // AIP Conference Proceedings;1/4/2010, Vol. 1199 Issue 1, p403 

    Diluted magnetic semiconductor (DMS) materials have attracted much attention because of the interest in both investigations of fundamental physical properties and promising applications for various spintronic devices. Among many DMS structures, (III1-xMnx)V ferromagnetic semiconductor quantum...

  • Nanobox array for silicon-on-insulator luminescence enhancement at room temperature. Cluzel, B.; Pauc, N.; Calvo, V.; Charvolin, T.; Hadji, E. // Applied Physics Letters;3/27/2006, Vol. 88 Issue 13, p133120 

    We report the light extraction enhancement obtained at room temperature from a square lattice of crystalline silicon nanoboxes etched in a silicon-on-insulator substrate. Luminescence spectra recorded under optical pumping show a 125 times emission enhancement as compared with the reference...

  • AlGaN-based ultraviolet photodetector with micropillar structures. Wei-Chih Lai; Li-Chi Peng; Chien-Chun Chen; Jinn-Kong Sheu; Shih-Chang Shei // Applied Physics Letters;3/8/2010, Vol. 96 Issue 10, p102104 

    We demonstrated a single AlGaN layer with two different Al contents on the GaN μ-pillars template. It was found by the selective wavelength spatial cathodoluminescence images that the emission wavelengths of the AlGaN layer were at 345 and 325 nm on the side of the cone and on the top and...

  • Optical properties of well-crystallized and size-tuned ZnO quantum dots. Suzuki, Keigo; Kondo, Hiroyuki; Inoguchi, Masashi; Tanaka, Nobuhiko; Kageyama, Keisuke; Takagi, Hiroshi // Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p223103 

    Well-crystallized and size-tuned ZnO quantum dots (QDs) were prepared by pulsed laser ablation and following size classification using a differential mobility analyzer. Photoluminescence (PL) spectra of the ZnO QDs showed predominant ultraviolet (UV) emission. The finely size-tuned ZnO QDs...

  • EFFECT OF DEPOSITION MEDIUM ON THE OPTICAL AND SOLID STATE PROPERTIES OF CHEMICAL BATH DEPOSITED CdSe THIN FILMS. Chikwenze, R. A.; Nnabuchi, M. N. // Chalcogenide Letters;Jun2010, Vol. 7 Issue 6, p389 

    CdSe thin films were synthesized on the glass substrate by chemical bath deposition technique within the pores of polyvinyl alcohol (PVA) at 60°C. In order to study the effect of the capping polymer on the properties of these films, similar deposit was carried out using water as the...

  • Morphology and optical properties of α-Si:Y films obtained by the electron-beam evaporation method. Semikina, T. V. // Semiconductor Physics, Quantum Electronics & Optoelectronics;2005, Vol. 8 Issue 3, p19 

    This paper presents the results of AFM, Raman, IR spectroscopy and ellipsometry of α-Si:Y films prepared by electron-beam evaporation. The influence of the type and temperature of substrates, as well as the evaporation rate on film morphology, composition and optical properties are studied....

  • Modeling Optical and Electronic Properties of Silica Nano-Clusters in Silicon Rich Oxide Films. Espinosa-Torres, N. D.; Flores-Gracia, J. F. J.; Luna-López, J. A.; Morales-Sánchez, A.; Sosa-Sánchez, J. L.; Ramírez-García, J. C. // Journal of Nano- & Electronic Physics;2013, Vol. 5 Issue 3, p03004-1 

    Quantum effects are very important in nano scale systems such as molecules and clusters constituted of particles from a few to hundreds or a few thousands of atoms. Their optical and electronic properties are often dependent on the size of the systems and the way in which the atoms in these...

  • Dynamics of photoluminescence and recombination processes in Sb-containing laser nanostructures. Firsov, D. A.; Shterengas, L.; Kipshidze, G.; Zerova, V. L.; Hosoda, T.; Thumrongsilapa, P.; Vorobjev, L. E.; Belenky, G. // Semiconductors;Jan2010, Vol. 44 Issue 1, p50 

    The dynamics of interband photoluminescence has been studied at various temperatures and excitation levels in structures with quantum wells based on InGaAsSb alloys and barriers based on AlGaAsSb and AlInGaAsSb alloys. The lifetimes of optically injected charge carriers in quantum wells at...

  • Optical properties of hybrid quantum dot/quantum well active region based on GaAs system. Thoma, Jiri; Ochalski, Tomasz J.; Hugues, Maxime; Zhang, Shiyong; Hegarty, Stephen P.; Huyet, Guillaume // Journal of Applied Physics;Sep2012, Vol. 112 Issue 6, p063103 

    We experimentally investigate the optical properties of a novel hybrid material/structure consisting of a GaInNAs quantum well and stacked InAs/InGaAs quantum dot layers on GaAs substrate. We demonstrate that the strong quantum confined Stark effect within the quantum well can effectively...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics