Resolving Weak Light of Sub-picowatt per Square Centimeter by Hybrid Perovskite Photodetectors Enabled by Noise Reduction

Yanjun Fang; Jinsong Huang

doi:10.1002/adma.201500099

Resolving Weak Light of Sub-picowatt per Square Centimeter by Hybrid Perovskite Photodetectors Enabled by Noise Reduction

Adv Mater. 2015 May 6;27(17):2804-10. doi: 10.1002/adma.201500099. Epub 2015 Mar 18.

Authors

Yanjun Fang¹, Jinsong Huang

Affiliation

¹ Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.

PMID: 25786908
DOI: 10.1002/adma.201500099

Abstract

A highly sensitive hybrid perovskite photodetector is demonstrated to be able to directly resolve light irradiance down to sub-picowatts per square centimeter, in good accordance with the calculated noise equivalent power, which is enabled by electron and hole transport layer engineering, especially the trap passivation effect of the double fullerene layer.

Keywords: fullerene; noise equivalent power; organolead trihalide perovskites; photodetectors; trap passivation.