Short-wave infrared sensitive broadband photodetectors based on an HgTe quantum dot film
文献情報
Shuai Wen, Huan Liu, Lier Deng, Jijie Zhao, Yuxuan Du, Shengyong Wang, Fei Gao, Zhipeng Zhu, Fei Xie, Weiguo Liu
Broadband photodetectors capable of detecting light across a wide spectrum ranging from visible to short wave infrared (SWIR) wavelengths have significant relevance in various fields, including space technology and civil applications. HgTe quantum dots (QDs) have emerged as a promising candidate for the development of low-cost broadband photodetectors. In this study, a photodetector based on a layered structure of indium tin oxide (ITO)/HgTe QD film/gold (Au) was designed and fabricated using a layer-by-layer spin coating method. The fabricated photodetector exhibited a broadband response from 400 nm to 2000 nm, covering the visible and SWIR regions. Its broad spectral range makes it suitable for a wide range of applications. Additionally, the photodetector demonstrated a fast response time of approximately 300 μs, enabling rapid detection and data acquisition. These results highlight the potential of HgTe QDs as a promising material for the development of advanced broadband photodetectors with fast response times. The simplicity of the device structure, combined with the low-cost fabrication technique, makes it an attractive option for commercialization and integration into various optoelectronic systems.
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CrystEngComm is the forum for the design and understanding of crystalline materials. We welcome studies on the investigation of molecular behaviour within crystals, control of nucleation and crystal growth, engineering of crystal structures, and construction of crystalline materials with tuneable properties and functions. We publish hypothesis-driven research into… how crystal design affects thermodynamics, phase transitional behaviours, polymorphism, morphology control, solid state reactivity (crystal-crystal solution-crystal, and gas-crystal reactions), optoelectronics, ferroelectric materials, non-linear optics, molecular and bulk magnetism, conductivity and quantum computing, catalysis, absorption and desorption, and mechanical properties. Using Techniques and methods including… Single crystal and powder X-ray, electron, and neutron diffraction, solid-state spectroscopy, spectrometry, and microscopy, modelling and data mining, and empirical, semi-empirical and ab-initio theoretical evaluations. On crystalline and solid-state materials. We particularly welcome work on MOFs, coordination polymers, nanocrystals, host-guest and multi-component molecular materials. We also accept work on peptides and liquid crystals. All papers should involve the use or development of a design or optimisation strategy. Routine structural reports or crystal morphology descriptions, even when combined with an analysis of properties or potential applications, are generally considered to be outside the scope of the journal and are unlikely to be accepted.














