Development of Ultra-Fast Semiconducting Scintillators Using Quantum Confinement Effect
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概要
- 論文の詳細を見る
The concept of a "quantum scintillator", satisfying both a large light output and a quick response, is proposed. The temporal behavior of scintillation from ($n$-C6H13NH3)2PbI4, a natural multiple quantum well structure provided by the lead-halide-based perovskite-type organic-inorganic hybrid compound, was investigated using a short-pulsed electron beam and a streak camera. A decay component of 390 ps was efficiently observed even at room temperature. This response is notably quicker than conventional Ce3+-activated scintillators because of a quantum confinement effect that increases the overlapping region of electron and hole wavefunctions in the low-dimensional system. This achievement would be the next breakthrough in the development of ultra-fast inorganic scintillators.
- 2004-10-15
著者
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Muroya Yusa
Nuclear Engineering Research Laboratory Graduated School Of Engineering University Of Tokyo
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Murakami Hidetoshi
Technology Transfer Facilitation Program Japan Science And Technology Agency
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SHIBUYA Kengo
Quantum Engineering and Systems Science, The University of Tokyo
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KOSHIMIZU Masanori
Quantum Engineering and Systems Science, The University of Tokyo
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ASAI Keisuke
Technology Transfer Facilitation Program, Japan Science and Technology Agency
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Katsumura Yosuke
Nuclear Engineering Laboratory School Of Engineering University Of Tokyo
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Koshimizu Masanori
Quantum Engineering and Systems Science, The University of Tokyo, Tokyo 113-8656, Japan
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Katsumura Yosuke
Nuclear Engineering Research Laboratory, The University of Tokyo, Ibaraki 319-1188, Japan
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Murakami Hidetoshi
Technology Transfer Facilitation Program, Japan Science and Technology Agency, Tokyo 102-8666, Japan
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Shibuya Kengo
Quantum Engineering and Systems Science, The University of Tokyo, Tokyo 113-8656, Japan
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Asai Keisuke
Technology Transfer Facilitation Program, Japan Science and Technology Agency, Tokyo 102-8666, Japan
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