TY - JOUR
T1 - A Self-Powered and Flexible Organometallic Halide Perovskite Photodetector with Very High Detectivity
AU - Leung, Siu-Fung
AU - Ho, Kang-Ting
AU - Kung, Po-Kai
AU - Hsiao, Vincent K. S.
AU - Alshareef, Husam N.
AU - Wang, Zhong Lin
AU - He, Jr-Hau
PY - 2018/2/22
Y1 - 2018/2/22
N2 - 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.
AB - 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.
KW - flexible electronics
KW - organometallic halide perovskites
KW - photodetectors
KW - self-powered electronics
KW - solvent engineering
KW - triboelectric nanogenerators
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85040168021&origin=recordpage
U2 - 10.1002/adma.201704611
DO - 10.1002/adma.201704611
M3 - RGC 21 - Publication in refereed journal
SN - 0935-9648
VL - 30
JO - Advanced Materials
JF - Advanced Materials
IS - 8
M1 - 1704611
ER -