Fingerprint Recognition Matrix Based on Photomultiplication-Type Organic Photodetectors with a Signal-to-Noise Ratio of 51,400

被引：0

作者：

Yao, Qi ^{[1
,2
]}

Li, Shipei ^{[2
]}

Qin, Yunke ^{[2
]}

Zhao, Xingchao ^{[3
]}

Wang, Lei ^{[2
]}

Li, Yangbing ^{[2
]}

Jeong, Sang Young ^{[4
]}

Ma, Xiaoling ^{[3
]}

Woo, Han Young ^{[4
]}

Zhang, Fujun ^{[3
]}

Yu, Zhinong ^{[1
]}

Yuan, Guangcai ^{[2
]}

机构：

[1] Beijing Inst Technol, Sch Opt & Photon, Beijing 100081, Peoples R China

[2] BOE Technol Grp Co Ltd, Beijing 100176, Peoples R China

[3] Beijing Jiaotong Univ, Sch Phys Sci & Engn, Adv Organ Mat & Devices Lab, Beijing 100044, Peoples R China

[4] Korea Univ, Coll Sci, Organ Optoelect Mat Lab, Seoul 02841, South Korea

来源：

ACS APPLIED MATERIALS & INTERFACES | 2025年 / 17卷 / 10期

基金：

中国国家自然科学基金;

关键词：

photomultiplication; organic photodetectors; fingerprint sensor; silicon thin-film transistor; readout circuit; INJECTION;

D O I：

10.1021/acsami.4c21810

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Large-area and highly sensitive image sensors are vital for undercell fingerprint recognition technology. The photomultiplication-type organic photodetector (PM-OPD) is one of the alternative choices due to its special active layers with the ratio of donor to acceptor by weight of about 100:3 for achieving single charge carrier transport channels, resulting in relatively low dark current density and high external quantum efficiency under low bias. The optimal PM-OPDs exhibit a maximal 2.1 x 1012 Jones specific detectivity at 610 nm under -6 V bias and a high signal-to-noise ratio of 51,400 at -5.2 V bias. Solution-processed PM-OPDs were prepared onto the top of a polycrystalline-silicon thin-film transistor readout circuit, and image sensors were successfully realized with 338 pixels resolution per inch. The electrical and optical properties of the fingerprint sensor were investigated, and high-quality fingerprint images were obtained.

引用

页码：15709 / 15717

页数：9

共 51 条

[51] Over 18.2% efficiency of layer-by-layer all-polymer solar cells enabled by homoleptic iridium(III) carbene complex as solid additive [J].

Zhou, Hang ;

Sun, Yingjie ;

Zhang, Miao ;

Ni, Yuheng ;

Zhang, Fenghua ;

Jeong, Sang Young ;

Huang, Tianhuan ;

Li, Xiong ;

Woo, Han Young ;

Zhang, Jian ;

Wong, Wai-Yeung ;

Ma, Xiaoling ;

Zhang, Fujun .

SCIENCE BULLETIN, 2024, 69 (18) :2862-2869

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