High responsivity of VIS-NIR photodetector based on Ag2S/MEH-PPV heterojunction

被引：1

作者：

Zhang, Haiting ^{[1
,2
]}

Wei, Dongdong ^{[1
,2
]}

Xu, Ze ^{[1
,2
]}

Fu, Zhendong ^{[3
]}

Sun, WenBao ^{[3
]}

Liu, Jiangnan ^{[3
]}

Song, Xiaoxian ^{[1
,2
,4
]}

Zhang, Jingjing ^{[1
,2
]}

Dai, Zijie ^{[1
,2
]}

Ren, Yunpeng ^{[1
,2
]}

Ye, Yunxia ^{[1
,2
]}

Ren, Xudong ^{[1
,2
]}

Yao, Jianquan ^{[1
,2
,4
]}

机构：

[1] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Jiangsu Univ, Inst Micronano Optoelect & Terahertz Technol, Zhenjiang 212013, Jiangsu, Peoples R China

[3] Tianjin Jinhang Tech Phys Inst, Ctr Intelligent Optoelect Sensors, Tianjin 300308, Peoples R China

[4] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, Tianjin 300072, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2023年 / 362卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

MEH-PPV; Ag 2 S QD; Heterojunction; Photodetector; Responsivity; SILVER SULFIDE NANOPARTICLES; QUANTUM DOTS; AG2S QDS; FLUORESCENCE; POLYMER; ENHANCEMENT; PERFORMANCE; FABRICATION;

D O I：

10.1016/j.sna.2023.114646

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Silver sulfide (Ag2S) quantum dots (QDs), as a new non-toxic and environmentally friendly QD material, has been widely applied in photoelectric device. We synthesized Ag2S QDs by simple chemical method, and constructed quantum dot-polymer heterojunction photodetector (PD) by combining with the Poly (MEH-PPV). The addition of Ag2S QDs improves the light absorption capacity of MEH-PPV in the visible to near infrared range. Then the photoelectric characteristics of the heterojunction photodetector were measured. The optical responsivity and specific detectivity of the device at 405,532,808 nm were 27.5 A/W,2.19 x 1010 Jones, 23.8 A/W,1.62 x 1010 Jones, 51.7 A/W,3.23 x 1010 Jones, respectively. This work will improve the capability of vulcanized MEH-PPV for broad spectrum measurement and weak light detection.

引用

页数：7

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