High-Performance Photodetectors with an Ultrahigh Photoswitching Ratio and a Very Fast Response Speed in Self-Powered Cu2ZnSnS4/CdS PN Heterojunctions

光电子学 材料科学 异质结 光电探测器 比探测率 电容 捷克先令 半导体 光电效应 光电导性 光电流 响应度 光探测 光伏系统 太阳能电池 物理 电气工程 工程类 量子力学 电极
作者
Hongzhu Wu,Changkun Ma,Jiyue Zhang,Hechun Cao,Ruobing Lin,Wei Bai,Zengxiang Pan,Jing Yang,Yuanyuan Zhang,Ye Chen,Xiaodong Tang,Xudong Wang,Jianlu Wang,Junhao Chu
出处
期刊:ACS applied electronic materials [American Chemical Society]
卷期号:3 (9): 4135-4143 被引量:10
标识
DOI:10.1021/acsaelm.1c00597
摘要

Cu2ZnSnS4 (CZTS) has been extended to the field of photodetection owing to its outstanding optoelectronic properties. However, the existence of the ineluctable defects in CZTS semiconductors affects and even determines the optoelectric processes including carrier generation, relaxation, transfer, and recombination. Moreover, photoresponse correlated to the defects in CZTS photodetectors has not well been documented and the possible physics mechanism is still unexplored. High-performance and self-powered PN heterojunction photodetectors are built from Cu2ZnSnS4 and CdS films. The devices exhibit a steady rectifying behavior and a prominent photovoltaic effect. The peak values of responsivity and detectivity are 220 mA W–1 and 2.69 × 1010 Jones, respectively. A very fast response speed with rising and decay times of up to 18 and 19 μs and an ultrahigh photoswitching ratio beyond 104 are demonstrated in these photodetectors. An abnormal dependence of the light response parameters on the incident power and temperature is found in these devices. This anomaly is explained by the formation of the defects and/or defect dipoles, which are evidenced by the temperature dependence of the photocurrent, the dependence of the capacitance on the bias voltage at different temperatures, and the derivative of capacitance with temperature.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
Chris发布了新的文献求助10
1秒前
1秒前
李白南南完成签到 ,获得积分10
1秒前
m31完成签到,获得积分10
1秒前
2秒前
2秒前
2秒前
完美世界应助董咚咚采纳,获得10
3秒前
wanzhitao发布了新的文献求助10
3秒前
彭于晏应助清新的问枫采纳,获得10
4秒前
4秒前
完美的书雁完成签到 ,获得积分10
4秒前
李昌昊完成签到,获得积分20
4秒前
Lowe发布了新的文献求助10
5秒前
6秒前
桀桀桀发布了新的文献求助10
6秒前
7秒前
kento发布了新的文献求助150
7秒前
123发布了新的文献求助10
7秒前
啊啊啊啊啊啊完成签到,获得积分10
7秒前
7秒前
贪玩的台灯应助复杂之桃采纳,获得10
7秒前
8秒前
量子星尘发布了新的文献求助10
8秒前
AstrLees完成签到 ,获得积分10
9秒前
顺鑫完成签到 ,获得积分10
9秒前
9秒前
10秒前
小鞋完成签到,获得积分10
10秒前
11秒前
Ava应助gg采纳,获得10
11秒前
11秒前
俭朴的寇完成签到,获得积分10
12秒前
乐观小之发布了新的文献求助10
12秒前
Y哦莫哦莫发布了新的文献求助10
12秒前
道中道完成签到,获得积分10
12秒前
Wuwuwu发布了新的文献求助10
12秒前
zh完成签到,获得积分10
12秒前
13秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 360
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3970949
求助须知:如何正确求助?哪些是违规求助? 3515634
关于积分的说明 11179061
捐赠科研通 3250769
什么是DOI,文献DOI怎么找? 1795474
邀请新用户注册赠送积分活动 875831
科研通“疑难数据库(出版商)”最低求助积分说明 805188