期刊
MATERIALS HORIZONS
卷 7, 期 7, 页码 1901-1911出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0mh00537a
关键词
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资金
- National Natural Science Foundation of China [61974014]
- National Key Research and Development Program of China [2019YFB2203400]
- 111 Project [B20030]
- UESTC Shared Research Facilities of Electromagnetic Wave and Matter Interaction [Y0301901290100201]
- Fundamental Research Funds for the Central Universities [YJ201955]
- Science and Technology Program of Sichuan Province [2020JDJQ0030]
Solution-processed materials, including halide perovskites and newly discovered MXenes, are emerging as promising candidates for next-generation optoelectronic devices. Here, large-scale image sensor arrays (1250 pixels) based on a MXene/perovskite/MXene structure are demonstrated by utilizing top-down techniques,i.e.spin-coating and laser-scribing. The work allows processing perovskite and MXene materials into sub-millimeter photodetector arrays on a large scale with potential for further down-scaling of the device dimensions. The favorable energy level alignment and resonance enhancement of such materials enable efficient charge transfer and detection up to the near infrared region. A high responsivity of 84.77 A W-1, a high specific detectivity of 3.22 x 10(12)Jones, and a large linear dynamic range (LDR) up to 82 dB in a broadband wavelength range from visible to near-infrared are achieved. In addition, the device shows an excellent image-capture capability under near infrared illumination. Given the tunability and compatibility with complementary metal-oxide-semiconductors (CMOS), the method potentially promotes the development of low-cost, high-performance, and large format photodetector arrays.
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