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2次元フェロ電気ディオン・ジェイコブソン混合ペロフスキットを使用する自動光検出器
In-Hyeok Park1, Ki Chang Kwon1, Ziyu Zhu1
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
Journal of the American Chemical Society
|October 28, 2020
まとめ
ディオン・ジェイコブソン相の 有機・無機混合ペロブスキットを用いて 新しい光検出器を開発しました この材料は安定性を高め 効率的な可視光検知機能を提供し,先進的な光電子機器への道を切り開いています
科学分野:
- 材料科学
- 固体物理学
- 光電子機器
背景:
- ディオン・ジェイコブソン (DJ) 段階の有機無機混合ペロブスキート (OIHPs) は,ラドルズデン・ポッパーズペロブスキートに比べて優れた化学的安定性と鉄電性を持っています.
- 鉄電気材料は,高度なデバイスのアプリケーションに不可欠な調節可能な電子特性を可能にします.
研究 の 目的:
- DJ-OIHP, (AMP) ((MA) Pb2I7のn=2ホモローグを使用して,フェロ電気によって調節された光検出器を製造し,特徴づけます.
- 光検出器の性能に対する鉄電極化の影響を調査する.
主な方法:
- (AMP) ((MA) Pb2I7 (DJP) 薄膜の合成と製造
- 外平面の極化と強制場を含む,鉄電性の性質の特徴化.
- 応答性とキャリアダイナミクスを評価するための光検出測定.
主要な成果:
- 製造されたDJP光検出器は3.7μC/cm2の平面外極化を示した.
- DJPは,n=1の同位体と比較して,より長いキャリア寿命と赤にシフトした吸収エッジ (580 nm) を示した.
- 532 nmで0.16 mA/Wの応答性が達成され,効率的な可視光光検出を示した.
結論:
- n=2のDJ-OIHPは,鉄電調光検出器にとって有望な材料である.
- 残存の偏振は,光電流の方向と大きさに大きく影響する.
- DJ-OIHPは,安定して効率的な光電子機器の実現可能な代替手段です.
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