journal article·2023-03-28

Narrowband Near-Infrared Photodetectors Based on Dye-Doped Perovskites

Sen Liu, Wen Xu, Lu Zi, Nan Ding, Junhua Hu, Jinyang Zhu, Donglei Zhou, Xue Bai, Xu Chen, Hongwei Song

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Abstract

Wavelength-selective light detection devices are critical for many applications such as biological diagnosis, machine imaging, and security. Here, we present self-powered narrowband near-infrared photodetectors based on perovskite films via doping organic dyes (Rhodamine 800). The doping of Rhodamine 800 could adjust the recombination of free carriers in perovskites and manipulate the maximum wavelength response range of the photoactive layer by the charge collection narrowing technology. The as-prepared MAPbI 3 /Rhodamine 800 photodetectors exhibit a narrow spectral response window of 700–800 nm with full width at half-maxima of <60 nm. Moreover, these characteristics are also demonstrated in the other inorganic perovskite films. As a consequence, this kind of designing scheme provides an idea to develop wavelength-selective and narrowband photodetectors with excellent business value and multiple application prospects.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · 2D Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Physics, Jilin University, Changchun 130012, China

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China

Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Dalian Minzu University, Dalian 116600, China

State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China

Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China

Funding

National Natural Science Foundation of China · Young Talents of Dalian · State Key Laboratory of Integrated Optoelectronics, Jilin University

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