Recent progress in perovskite-based photodetectors: the design of materials and structures

Abstract

In recent years, taking advantages of high light absorption coefficients, long charge carrier diffusion lengths and intense photoluminescence, halide perovskites have attracted a great deal of interest in developing high-performance optoelectronic devices including solar cells, light-emitting diodes, photodetectors, transistors, lasers, and so on. Especially, the excellent combination of effective light absorption with tailorable absorption spectrum and high charge carrier mobility in a broadband range makes perovskite-based photodetectors different from traditional photodetectors made of inorganic semiconductors such as GaN, Si, and InGaAs. According to the recent reports, perovskites are promising to greatly improve responsivity, detectivity, noise equivalent power, linear dynamic range, and response speed of photodetectors. Here, we summarize the recent advancements in organic-inorganic hybrid perovskite-based photodetectors in terms of the progress in various low-dimension perovskites, and the recent effective approaches to enhance the performance of perovskite photodetector based on the interfacial engineering in perovskite heterostructures. Besides, two kinds of perovskite photodetectors, namely vertical structure and lateral structure, are analyzed, and the challenges to achieve practical applications in photodetectors are also discussed.

Фотоэлектрические параметры фотоприемников на основе тонких микрокристаллических пленок перовскита CH-=SUB=-3-=/SUB=-NH-=SUB=-3-=/SUB=-PbI-=SUB=-3-=/SUB=-

“…Несмотря на большое число научных работ, в том числе обзорных [1][2][3][4], посвященных параметрам фотодетекторов на основе перовскита, попытки создания прибора, который был бы доступным и сравнительно простым в изготовлении, остаются актуальными. Поэтому в настоящей работе проведены исследования фотоэлектрических свойств прибора фоторезистивного типа на основе перовскита, полученного наиболее простым и доступным способом.…”

Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials

“…Therefore, an interlayer or modified HTL is required to optimize the performance of PeLEDs. Conventional 2D materials such as graphene, GO and MoS2 have been widely used in photodetectors and solar cells based on perovskite materials [23,63]. Referred to the results in OLEDs and QLEDs, 2D materials are promising candidates to replace or modify PEDOT:PSS through constructing the device structures partly shown in Figure 8.…”

Regulating Nutrients and Phytoplankton by Extending the Habitats of Periphyton in a Deep River‐Type Reservoir

“…It serves as energy source and habitat for a variety of aquatic consumers . Generally, periphyton is an important competitor with phytoplankton and submerged macrophyte for nutrients and light in shallow water bodies . The growth of periphyton also can be limited by available light, nutrients, and temperature .…”