当前位置: X-MOL 学术Adv. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A Self‐Powered and Flexible Organometallic Halide Perovskite Photodetector with Very High Detectivity
Advanced Materials ( IF 27.4 ) Pub Date : 2018-01-10 , DOI: 10.1002/adma.201704611
Siu-Fung Leung 1 , Kang-Ting Ho 1 , Po-Kai Kung 1 , Vincent K. S. Hsiao 1 , Husam N. Alshareef 2 , Zhong Lin Wang 3 , Jr-Hau He 1
Affiliation  

Flexible and self‐powered photodetectors (PDs) are highly desirable for applications in image sensing, smart building, and optical communications. In this paper, a self‐powered and flexible PD based on the methylammonium lead iodide (CH3NH3PBI3) perovskite is demonstrated. Such a self‐powered PD can operate even with irregular motion such as human finger tapping, which enables it to work without a bulky external power source. In addition, with high‐quality CH3NH3PBI3 perovskite thin film fabricated with solvent engineering, the PD exhibits an impressive detectivity of 1.22 × 1013 Jones. In the self‐powered voltage detection mode, it achieves a large responsivity of up to 79.4 V mW−1 cm−2 and a voltage response of up to ≈90%. Moreover, as the PD is made of flexible and transparent polymer films, it can operate under bending and functions at 360 ° of illumination. As a result, the self‐powered, flexible, 360 ° omnidirectional perovskite PD, featuring high detectivity and responsivity along with real‐world sensing capability, suggests a new direction for next‐generation optical communications, sensing, and imaging applications.

中文翻译:

具有极高检测能力的自供电且灵活的有机金属卤化物钙钛矿光电探测器

柔性且自供电的光电探测器(PD)非常适用于图像感测,智能建筑和光通信中的应用。本文展示了一种基于甲基铵碘化铅(CH 3 NH 3 PBI 3)钙钛矿的自供电且柔性的PD 。这样的自供电PD甚至可以在不规则的运动(例如人的手指敲击)下运行,从而使其无需庞大的外部电源即可工作。此外,采用溶剂工程技术制造的高质量CH 3 NH 3 PBI 3钙钛矿薄膜,PD的探测灵敏度达到了1.22×10 13琼斯 在自供电电压检测模式下,它可实现高达79.4 V mW -1 cm -2的大响应度和高达≈90%的电压响应。而且,由于PD由柔性和透明的聚合物薄膜制成,因此它可以在弯曲下工作,并在360°的照明下工作。因此,具有高检测能力和响应能力以及真实感测能力的自供电,灵活的360°全向钙钛矿PD为下一代光通信,感测和成像应用提供了新的方向。
更新日期:2018-01-10
down
wechat
bug