Visible Electroluminescence from Spherical-Shaped Silicon Nanocrystals
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概要
- 論文の詳細を見る
We fabricated light emitting diodes (LEDs) using spherically shaped nanocrystalline silicon (nc-Si), which was formed through very high frequency (VHF; 144 MHz) plasma decomposition of SiH4. In addition, we successfully reduced the roughness of the surface and part of the voids separating the dots by finding the adequate annealing conditions. Red electroluminescence was also observed at 12 V with the naked eye at room temperature under forward bias condition. It is suggested that the origin of the electroluminescence (EL) from Si nanocrystals is due to recombination centers in Si nanocrystals by the comparison of EL and photoluminescence spectra.
- 2008-10-25
著者
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Tanaka Atsushi
Quantum Beam Sci. Directorate Japan Atomic Energy Agency
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USAMI Kouichi
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology
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TSUCHIYA Yoshishige
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology
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Oda Shunri
Quantum Nanoelectronics Research Center And Department Of Physical Electronics Tokyo Institute Of Technology
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Mizuta Hiroshi
School of Electronic and Computer Science, University of Southampton, Highfield, Southampton SO17 1BJ, U.K.
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Cheong Hea
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Hippo Daihei
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Tsuchiya Yoshishige
Quantum Nanoelectronics Research Center and Department of Physical Electronics, Tokyo Institute of Technology, and SORST, Japan Science and Technology Agency, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Usami Kouichi
Quantum Nanoelectronics Research Center and Department of Physical Electronics, Tokyo Institute of Technology, and SORST, Japan Science and Technology Agency, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Oda Shunri
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Usami Kouichi
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Oda Shunri
Quantum Nanoelectronics Research Center (QNERC), Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
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