TITLE

Time-resolved analysis of the white photoluminescence from SiO[sub 2] films after Si and C coimplantation

AUTHOR(S)
Pellegrino, P.; Pérez-Rodriguez, A.; Garrido, B.; González-Varona, O.; Morante, J. R.; Marcinkevičcius, S.; Galeckas, A.; Linnros, J.
PUB. DATE
January 2004
SOURCE
Applied Physics Letters;1/5/2004, Vol. 84 Issue 1, p25
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The analysis of the white photoluminescence (PL) from Si[sup +] and C[sup +] coimplanted SiO[sub 2] is reported as a function of the implanted dose. By both steady and time-resolved measurements, the presence of several components in the emission between 2 and 3.3 eV has been resolved. The decays of the PL transients are characterized by short lifetimes, below 2 ns. For the emission at 2.1–2.3 eV, photoluminescence decay transients have been measured, obtaining a fast relaxation component of about 50–70 ps, followed by a slower component of the order of 1 ns. These values contrast with the very slow behavior, characteristic for the light emission from Si nanocrystals, and make carbon-related emitting centers interesting for optoelectronic applications where fast switching behavior is important. © 2004 American Institute of Physics.
ACCESSION #
11805691

 

Related Articles

  • Effects of Ag/indium tin oxide contact to a SiC doping layer on performance of Si nanocrystal light-emitting diodes. Chul Huh; Nae-Man Park; Jae-Heon Shin; Kyung-Hyun Kim; Tae-Youb Kim; Kwan Sik Cho; Gun Yong Sung // Applied Physics Letters;3/27/2006, Vol. 88 Issue 13, p131913 

    We report on the effects of a very thin Ag (2.5 nm) interlayer between the indium tin oxide (ITO) current spreading layer and a SiC doping layer on silicon nanocrystals (nc-Si) embedded in silicon nitride film on the electrical and optical performance of the light-emitting diodes (LEDs). The...

  • The influence of the p-n junction induced electric field on the optical properties of... Wang, T.; Sugahara, T. // Applied Physics Letters;3/8/1999, Vol. 74 Issue 10, p1376 

    Studies the influence of the p-n junction induced electric field on the optical properties of InGaN/GaN/AlGaN light emitting diode (LED). Temperature dependence of photoluminescence measurement; Emission energy of the LED structure; LED behavior attributed to the quantum-confined Stark effect.

  • Silicon-nanocrystal resonant-cavity light emitting devices for color tailoring. Tseng, Chih-Kuo; Lee, Ming-Chang M.; Hung, Hau-Wei; Huang, Jiun-Ru; Lee, Kun-Yu; Shieh, Jia-Min; Lin, Gong-Ru // Journal of Applied Physics;Apr2012, Vol. 111 Issue 7, p074512 

    A silicon-nanocrsytal resonant-cavity light-emitting device (RCLED) is presented. The microcavity, made by a silicon nanocrystal layer inserted between a semitransparent Au reflector and a distributed Bragg reflector mirror, shows enhanced emission intensity by four times at resonance wavelength...

  • Molecular beam epitaxial growth of InAsN:Sb for midinfrared Optoelectronics. Zhuang, Q.; Godenir, A.; Krier, A.; Tsai, G.; Lin, H. H. // Applied Physics Letters;9/22/2008, Vol. 93 Issue 12, p121903 

    We report molecular beam epitaxial growth and characterization of dilute nitride InAsN:Sb. X-ray diffraction, energy dispersive x-ray spectrometry, and electron probe microanalysis revealed that nitrogen incorporation is significantly enhanced by introduction of Sb flux during growth, together...

  • Highly efficient near-infrared hybrid organic-inorganic nanocrystal electroluminescence device. Bourdakos, K. N.; Dissanayake, D. M. N. M.; Lutz, T.; Silva, S. R. P.; Curry, R. J. // Applied Physics Letters;4/14/2008, Vol. 92 Issue 15, p153311 

    We report the use of PbS nanocrystals within a hybrid device that emits 1.2 μm electroluminescence with an external quantum efficiency of 1.15% corresponding to an internal quantum efficiency of ∼5%–12% thus demonstrating a viable, low-cost, highly efficient near infrared organic...

  • Quantum efficiency enhancement in nanocrystals using nonradiative energy transfer with optimized donor-acceptor ratio for hybrid LEDs. Nizamoglu, Sedat; Akin, Onur; Demir, Hilmi Volkan // Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p243107 

    The quantum efficiency enhancement in nanocrystal solids is critically important for their efficient use as luminophors on color-conversion light emitting diodes (LEDs). For this purpose, we investigate energy gradient mixture of nanocrystal solids for recycling their trapped excitons by varying...

  • Solution processed multilayer cadmium-free blue/violet emitting quantum dots light emitting diodes. Xiang, Chaoyu; Koo, Wonhoe; Chen, Song; So, Franky; Liu, Xiong; Kong, Xiangxing; Wang, Yunjun // Applied Physics Letters;7/30/2012, Vol. 101 Issue 5, p053303 

    We demonstrate blue/violet emitting devices based on cadmium-free zinc selenide/zinc sulfide core/shell quantum dots. Using poly(N-vinylcarbazole) with a low lying highest occupied molecular orbital energy for the hole transporting layer, enhanced hole injection was observed, resulting in...

  • Single-exciton optical gain in semiconductor nanocrystals. Klimov, Victor I.; Ivanov, Sergei A.; Nanda, Jagjit; Achermann, Marc; Bezel, Ilya; McGuire, John A.; Piryatinski, Andrei // Nature;5/24/2007, Vol. 447 Issue 7143, p441 

    Nanocrystal quantum dots have favourable light-emitting properties. They show photoluminescence with high quantum yields, and their emission colours depend on the nanocrystal size—owing to the quantum-confinement effect—and are therefore tunable. However, nanocrystals are difficult...

  • Amorphous silicon as electron transport layer for colloidal semiconductor nanocrystals light emitting diode. Tao Song; Fute Zhang; Xiaojuan Shen; Xiaohong Zhang; Xiulin Zhu; Baoquan Sun // Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p233502 

    We demonstrate the fabrication of light-emitting diodes (LEDs) made from all-inorganic colloidal semiconducting nanocrystals (NCs). The diode utilizes a sandwich structure formed by placing CdSe/CdS NCs between two layers of Si and AgxO, which act as electron- and hole-transporting materials,...

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