High-Performance Air-Stable 2D-WSe2/P3HT Based Inorganic-Organic Hybrid Photodetector with Broadband Visible to Near-IR Light Detection

被引：8

作者：

Khanikar, Prabal Dweep ^{[1
,2
,3
]}

Dewan, Sheetal ^{[4
]}

John, John Wellington ^{[3
]}

Shukla, Atul ^{[2
,5
]}

Das, Pritam ^{[6
]}

Dhara, Sajal ^{[6
]}

Karak, Supravat ^{[7
]}

Lo, Shih-Chun ^{[5
,8
]}

Namdas, Ebinazar B. ^{[2
,5
]}

Das, Samaresh ^{[3
]}

机构：

[1] Univ Queensland IIT Delhi Acad Res UQIDAR, New Delhi 110016, India

[2] Univ Queensland, Sch Math & Phys, St Lucia, QLD 4072, Australia

[3] Indian Inst Technol Delhi, Ctr Appl Res Elect, New Delhi 110016, India

[4] Indian Inst Technol Delhi, Sch Interdisciplinary Res, New Delhi 110016, India

[5] Univ Queensland, Ctr Organ Photon & Elect, Brisbane, QLD 4072, Australia

[6] Indian Inst Technol Kharagpur, Dept Phys, Kharagpur 721302, West Bengal, India

[7] Indian Inst Technol Delhi, Dept Energy Sci & Engn, Organ & Hybrid Elect Device Lab, New Delhi 110016, India

[8] Univ Queensland, Sch Chem & Mol Biosci, Brisbane, QLD 4072, Australia

来源：

ADVANCED ELECTRONIC MATERIALS | 2023年 / 9卷 / 12期

关键词：

heterojunctions; hybrids; inorganics; long-range energy transfers; organics; P3HT; photodetectors; WSe2; TRANSITION-METAL DICHALCOGENIDE; SELF-DRIVEN; ENERGY-TRANSFER; ULTRAFAST; SHEETS; WS2;

D O I：

10.1002/aelm.202300514

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Photodetectors that can achieve high-speed photoresponse and high responsivity with broadband detection are essential for bio-health monitoring, imaging, chemical sensing, and many other applications. Herein a high-performance inorganic-organic hybrid photodetector based on a heterojunction of exfoliated 2D tungsten diselenide (WSe2) layers and solution-processable poly(3-hexylthiophene-2,5-diyl), P3HT is reported. The heterojunction shows enhanced exciton harvesting through long-range energy transfer from P3HT to WSe2, which is confirmed using photoluminescence quenching and fluorescence decay measurements. The detector shows broadband light detection from visible to near-infrared (NIR) (400-1100 nm), and air-stable device performance. The device exhibits the highest responsivity of 17.6 AW(-1) for low incident light intensity (<10(-5) W cm(-2)) at 640 nm wavelength of light. Furthermore, a fast photoresponse speed with a rise/fall time of 9.5/5.1 mu s, which retained its performance for more than four months under ambient conditions is demonstrated. The superior device performance presented here using an inorganic-organic hybrid heterojunction is the key to producing novel high-performance and air-stable photodetectors with broad spectral bandwidth.

引用

页数：11