鉛ハリド半導体の光学および電気的特性および安定性を改善するための設計戦略
Cai Sun1,2, Gang Xu1,2, Xiao-Ming Jiang1,2
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, People's Republic of China.
Journal of the American Chemical Society
|February 10, 2018
まとめ
研究者は太陽電池用の 新種の光色半導体を開発しました この材料は,フォトスイッチ可能な半導体としては初めて,光誘導電子移転により光吸収,安定性,伝導性が向上しています.
科学分野:
- 材料科学
- 太陽光発電
- 半導体物理学
背景:
- 非有機有機混合鉛ハリド材料は,吸収,キャリア寿命,導電性,および安定性のために太陽電池にとって有望です.
- これらの特性を改善することは 実践的な太陽電池の応用に不可欠です
研究 の 目的:
- 太陽電池の光吸収器の強化のための新しい設計戦略を導入する.
- 改良された特性を持つ新しい光染色鉛塩化半導体を合成し,特徴づけること.
主な方法:
- フォトアクティブのビオロゲンズウィテリオンを組み込み,新しい光色鉛塩化半導体合成.
- 材料の構造,安定性,吸収性,伝導性,光伝導性の特徴
- 半導体特性に対する光誘導電子移転 (PIET) 効果の調査.
主要な成果:
- 共同結合ナノリボンとπ-アグレガットを用いた新しい無機-有機混合構造が合成されました.
- この材料は,光,熱,水分に対して高い安定性を示しました.
- 光誘導電子移転 (PIET) は,長寿命の電荷分離状態,広範な吸収 (200-900 nm),および有意に増加した伝導性と光伝導性 (最大3桁) をもたらした.
- これは,半導体の光伝導性をPIETで初めて修正し,光伝導性の半導体で記録的な増加を達成しました.
結論:
- 開発された光色半導体は,太陽電池の改善された光吸収体としての可能性を示しています.
- この研究は,PIETを使用して半導体の光伝導性を修正するための新しい方法を示しています.
- オーガニックコンポーネントのさらなる最適化により,光電流の生成が強化される.
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