Perovskite-based photodetectors: materials and devices

Area of Science:

• Optoelectronics
• Materials Science
• Semiconductor Physics

Background:

• Perovskite optoelectronics research has focused on photovoltaics, LEDs, and transistors.
• Perovskites possess unique semiconducting properties suitable for light signal detection.
• Key properties include broadband light absorption, efficient photo-generation, and high charge carrier mobility.

Purpose of the Study:

• To provide a comprehensive overview of perovskite-based photodetectors.
• To highlight recent progress in materials, structures, morphologies, and device architectures.
• To discuss the potential of perovskites in advanced photodetection applications.

Main Methods:

• Review of diverse perovskite compositions (organic-inorganic hybrid, all-inorganic halide).
• Analysis of various morphologies (thin films, nanoparticles, single crystals).
• Examination of different device architectures (two- or three-terminal).

Main Results:

• Perovskite photodetectors demonstrate excellent responsivity, detectivity, and response speed.
• Sensing capabilities span from ultraviolet-visible-near infrared (UV-Vis-NIR) to gamma photons.
• Superior optoelectronic performances achieved across various material types and device designs.

Conclusions:

• Perovskites offer a promising combination of solution processability and high charge carrier mobility.
• They are emerging as strong candidates to replace silicon in future photodetection technologies.
• The versatility of perovskites enables sensitive and fast photodetectors for diverse applications.