NOVEL SELF-FILTERING NARROWBAND ORGANIC PHOTODETECTOR

WIPO Patent Application WO/2020/238108

A1

A novel self-filtering narrowband organic photodetector, the detector sequentially comprising a substrate (1), a positive electrode (2), a P-type layer (3), an N-type layer (4), and a negative electrode (5), wherein the P-type layer (3) can be further separated into a single-layer P-type layer structure and a multi-layer P-type layer structure. In the single-layer P-type layer structure, a band gap width of P-type layer material is greater than that of N-type layer material. In the multi-layer P-type layer structure, at least one P-type layer material not in direct contact with the N-type layer (4) has a band gap width greater than that of N-type layer material and/or that of P-type layer material in direct contact with the N-type layer (4). A buffer layer (6) is added between the positive electrode (2) and the P-type layer (3) and/or between the N-type layer (4) and the negative electrode (5). The organic photodetector achieves unrestrained selection of a detection spectral band and unrestrained adjustment of the full width at half maximum without a bandpass optical filter.

HUANG FEI (CN)
XIE BOMING (CN)
ZHANG KAI (CN)
HU ZHICHENG (CN)

PCT/CN2019/121781

December 03, 2020

November 29, 2019

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UNIV SOUTH CHINA TECH (CN)

H01L51/42; H01L51/46; H01L51/48

CN105655491A	2016-06-08
CN108807688A	2018-11-13
CN107591484A	2018-01-16
CN109786560A	2019-05-21
DE102007009995A1	2008-09-04
US20190058138A1	2019-02-21

YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)

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