2D/3D Perovskite Surface Passivation-Enabled High-Detectivity Near-Infrared Photodiodes.

Xuefeng Huangfu, Junyu Chen, Gaohui Ge, Jianyu Li, Jiazhen Zhang, Qinhao Lin, Hao Xu, Shu Min Wang

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Xuefeng HuangfuSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.

Junyu ChenSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.

Gaohui GeSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.

Jianyu LiSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.

Jiazhen ZhangYangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China.

Qinhao LinYangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China.ORCID 0000-0002-8621-3458

Hao XuSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.

Shu Min WangDepartment of Microtechnology and Nanoscience, Chalmers University of Technology, 41296 Goteborg, Sweden.

Funding

Haiju Project of Sichuan Province Science and Technology Plan No. 2024JDHJ0007the Natural Science and Technology Foundation of Huzhou No. 2024YZ36the Natural Science Foundation of Sichuan Province under Grant No. 2022NSFSC0516

6 · The paper itself

Abstract

Due to high responsivity and wide spectral sensitivity, metal halide perovskite photodiodes have a wide range of applications in the fields of visible light and near-infrared photodetection. Specific detectivity is an important quality factor for high-performance perovskite-based photodiodes, while one of the keys to achieving high detectivity is to reduce dark current. Here, 3-fluoro phenethylammonium iodide (3F-PEAI) was used to passivate the perovskite surface and form the two-dimensional (2D) perovskite on the three-dimensional (3D) perovskite surface. The as-fabricated passivated perovskite photodiodes with 2D/3D hybrid-dimensional perovskite heterojunctions showed two orders of magnitude smaller dark current, larger open circuit voltage and faster photoresponse, when compared to the control perovskite photodiodes. Meanwhile, it maintained almost identical photocurrent, achieving a high specific detectivity up to 2.4 × 10

Indexed as

2D/3D perovskitesdark currentdefect passivationhigh detectivityphotodiodes

Identifiers

PMID40363179

DOI10.3390/s25092740

PMCPMC12074136

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.