红外线的
发光
光电子学
量子点
材料科学
猝灭(荧光)
CMOS芯片
探测器
光致发光
制作
粒子探测器
纳米技术
荧光
光学
物理
医学
替代医学
病理
作者
Jeffrey Gan Wang,Ruihua Ma,Xing Wu,Kangmin Leng,Qisheng Wang
出处
期刊:AIP Advances
[American Institute of Physics]
日期:2023-02-01
卷期号:13 (2)
摘要
The detection of infrared radiation through a CMOS detector has recently intrigued the scientists and engineers all over the world. This could lower the cost, simplify the operation, and improve the pixel of the conventional infrared detection technology. To achieve this objective, the infrared light is converted into visible light via up-conversion nanoparticles or LED, which, however, suffers from complicated device fabrication. Herein, we report a type of simple infrared detection via a CMOS detector based on quantum dots (QDs). Inspired by the temperature effect of luminescence QDs, we design a setup that modulates the luminescence intensity of QDs via infrared radiation, which can be read out through a CMOS camera. Furthermore, the underlying mechanism of thermal quenching behavior is investigated through measurements of transient photoluminescence. Compared with traditional IR detectors, our infrared detection system possesses the advantages of facile fabrication and scalability, showing great potential for infrared detection.
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