Recent Progress of Methods to Enhance Photovoltaic Effect for Self‐Powered Heterojunction Photodetectors and Their Applications in Inorganic Low‐Dimensional Structures

Abstract

An important class of photoelectronic devices, self‐powered photodetectors, has attracted worldwide attention because of its crucial role in both basic scientific research and commercial/public applications. Thanks to a special synergistic effect, excellent photoelectric properties, and outstanding mechanical stability, the study of heterojunction devices can provide valuable insights and new possibilities for the future of self‐powered photodetectors. This paper reviews the recent years of fundamental research of photovoltaic efficiency based on the ferroelectric‐enhanced photovoltaic effect, the pyro‐phototronic effect, and the piezo‐phototronic effect. It also highlights important topics related to heterojunctions and materials that are suitable for self‐powered photodetectors. The article concludes with an outlook of the future development in this important and rapidly advancing field.

Reconfigurable self-powered imaging photodetectors by reassembling and disassembling ZnO/perovskite heterojunctions

“…19 Currently, most photodetectors usually require the application of an external bias voltage to prevent the recombination of photogenerated electron-hole pairs, which not only increases equipment size and energy consumption but also limits the long-term application of detectors in unmanned hazardous environments or harsh atmospheres. [20][21][22] Thus, building self-powered photodetectors without any power supply is being widely studied, which meets the demands of next-generation portable and wearable devices. [23][24][25][26][27] So far, self-powered photodetectors have been realized based on the photovoltaic effect with a pn junction, Schottky junction, and heterojunction structure, respectively.…”

Investigation of Optoelectronic Properties of Organic Semiconductor Tetracyaoquinodimethane Based Heterostructures

“…The ideality factor, saturation current and barrier height values were calculated and resistance rather than more than unity (Cifci et al, 2018;Kacus et al, 2020) These results can be indicated to good response time according to literature (Hu et al, 2021). These results can be indicated to good response time according to literature (Hu et al, 2021).…”

Electrical Behaviors of the Co‐ and Ni‐Based POMs Interlayered Schottky Photodetector Devices

“…These results implied good response time according to literature. [58] The data from I-t graphs were used to calculate various photodetector parameters such as photocurrent, photosensitivity, responsivity, specific detectivity, and noise equivalent power. Their formulas are given in equations from (1) to ( 5).…”