Perovskite-based photodetectors: materials and devices

Abstract

While the field of perovskite-based optoelectronics has mostly been dominated by photovoltaics, light-emitting diodes, and transistors, semiconducting properties peculiar to perovskites make them interesting candidates for innovative and disruptive applications in light signal detection. Perovskites combine effective light absorption in the broadband range with good photo-generation yield and high charge carrier mobility, a combination that provides promising potential for exploiting sensitive and fast photodetectors that are targeted for image sensing, optical communication, environmental monitoring or chemical/biological detection. Currently, organic-inorganic hybrid and all-inorganic halide perovskites with controlled morphologies of polycrystalline thin films, nano-particles/wires/sheets, and bulk single crystals have shown key figure-of-merit features in terms of their responsivity, detectivity, noise equivalent power, linear dynamic range, and response speed. The sensing region has been covered from ultraviolet-visible-near infrared (UV-Vis-NIR) to gamma photons based on two- or three-terminal device architectures. Diverse photoactive materials and devices with superior optoelectronic performances have stimulated attention from researchers in multidisciplinary areas. In this review, we provide a comprehensive overview of the recent progress of perovskite-based photodetectors focusing on versatile compositions, structures, and morphologies of constituent materials, and diverse device architectures toward the superior performance metrics. Combining the advantages of both organic semiconductors (facile solution processability) and inorganic semiconductors (high charge carrier mobility), perovskites are expected to replace commercial silicon for future photodetection applications.

Asymmetric Contact‐Induced Self‐Driven Perovskite‐Microwire‐Array Photodetectors

“…[1][2][3][4][5][6][7][8] As one group of the most promising optoelectronic semiconductors, perovskite possess a variety of appealing physical and optoelectronic properties, e.g., strong optical absorption coefficient, high carrier mobility, long carrier diffusion length, solution-based processibility and so on. [12][13][14][15][16] These detectors have achieved excellent photoresponse performance that can compete with www.advelectronicmat.de simple blade-coating method, and a CH 3 NH 3 PbI 3 MWs arraybased photodetector attained responsivity and specific detectivity of 13.57 A W −1 and 5.25 × 10 12 Jones, respectively. [12][13][14][15][16] These detectors have achieved excellent photoresponse performance that can compete with www.advelectronicmat.de simple blade-coating method, and a CH 3 NH 3 PbI 3 MWs arraybased photodetector attained responsivity and specific detectivity of 13.57 A W −1 and 5.25 × 10 12 Jones, respectively.…”

Memristors with organic‐inorganic halide perovskites

“…The rapid increase of photovoltaic efficiency has been accompanied by a deeper understanding of the physical/chemical properties of OHPs . Recently, there has been interests in applying OHPs to other photonic and electronic devices, including light‐emitting diodes, X‐ray detectors, and energy conversion devices . It is expected that OHPs will become important active materials for next‐generation devices in the near future.…”

Tailoring electrical property of the low-temperature processed SnO2 for high-performance perovskite solar cells

“…Metal halide perovskites have stirred researchers' great interests in the photovoltaic field and achieved rapid development in the recent decade due to the high absorption coefficient, tunable band gaps, long carrier diffusion length, and low trap density [1][2][3][4][5][6]. Perovskite solar cells (PSCs), as the star candidates of photovoltaic devices, have realized a power conversion efficiency (PCE) up to 22.7%, comparable with conventional CdTe or CIGS analogues [7].…”