科学家找到有效降低红外摄像头制造成本的新方式

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mang2004 2019-03-10 23:10

Dual-band infrared imaging using stacked colloidal quantum dot photodiodes 1@`mpm#Y  
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Abstract \Qz
 
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Infrared multispectral imaging is attracting great interest with the increasing demand for sensitive, low-cost and scalable devices that can distinguish coincident spectral information. However, the widespread use of such detectors is still limited by the high cost of epitaxial semiconductors. In contrast, the solution processability and wide spectral tunability of colloidal quantum dots (CQDs) have inspired various inexpensive, high-performance optoelectronic devices. Here, we demonstrate a two-terminal CQD dual-band detector, which provides a bias-switchable spectral response in two distinct bands. A vertical stack of two rectifying junctions in a back-to-back diode configuration is created by engineering a strong and spatially stable doping process. By controlling the bias polarity and magnitude, the detector can be rapidly switched between short-wave infrared and mid-wave infrared at modulation frequencies up to 100 kHz with D* above 1010 jones at cryogenic temperature. The detector performance is illustrated by dual-band infrared imaging and remote temperature monitoring. MG$Df$R  

wangjin001x 2019-03-11 00:05

科学家找到有效降低红外摄像头制造成本的新方式

bairuizheng 2019-03-11 00:56

去年参加深圳光学博览会，问红外探测器的价格，是真贵！最少几万开始

tassy 2019-03-11 01:27

红外探测器的价格真贵！

dushunli 2019-03-11 06:36

制造成本！

刘明欢聪慧 2019-03-11 06:40

红外摄像头能够捕捉人类肉眼无法看到的不可见光，而且这种类型的能量要远远小于可见光的波长，这就意味着相机要比传统型号更加先进更加昂贵。而制造红外摄像头的关键因素就是需要制造多层半导体，这一过程既困难又具有高误差率，从而导致更高的生产成本。

likaihit 2019-03-11 07:43

真的是不可思议

redplum 2019-03-11 07:49

很有意思啊

thorn12345 2019-03-11 08:19

有效降低红外摄像头

climberhua 2019-03-11 08:26

收集包含红外线的多个波长可以为你提供更多的光谱信息