Low Dark-Current Quantum-Dot Infrared Imager

99.997% operable pixel factor

By reducing energetic disorder and band tails in morphology-modified CQD solids, the 2 μm photoconductor achieves 25× lower dark current and 10× lower noise at room temperature, enabling a 640×512 FPA imager with 99.997% operable pixel factor.

Xiaomeng, Xue · Luo, Yuning · Hao, Qun · Cao, Jie · Tang, Xin · Yanfei, Liu · Chen, Menglu

ACS Photonics 2023

Specifications

of room temperature

{'zh': '25', 'en': '2.0'} μm

噪声降低

{'zh': '10', 'en': ''} 倍

Response time s

{'zh': '0.94', 'en': '100'} times faster

像元可操作率

{'zh': '99.997', 'en': ''} %

Advantages

Specific detectivity reaches 4 × 10¹¹ Jones