Review—A Review of 2D Perovskites and Carbon-Based Nanomaterials for Applications in Solar Cells and Photodetectors

Abstract

Photonic devices such as solar cells and photodetectors that produce electricity play a vital role in our daily life for applications such as fibre optic communication systems, process control, and also in defence related applications. Today, two-dimensional perovskites that belong to the class of emerging materials show promising energy applications. 2D perovskites have been investigated for their exceptional properties such as high optical absorption coefficients, structural diversity and tuneable bandgaps which allow their application as active light absorbing materials to develop solar cells and photodetectors. Carbon-based nanomaterials have also found applications as transparent electrodes, charge acceptors and photosensitive layers in solar cells and photodetectors due to properties such as excellent electrical conductivity, high optical transparency, high surface area and remarkable mechanical strength. There has been growing interest in research on devices using these materials to improve their feasibility, ease of production and performance. With the growing urgency of switching to alternate sources of energy and increasing demands for highly accurate and fast sensors, the development and application of such novel materials are essential. Hence, the current state of understanding of these materials and their applications in the field of solar cells and photodetectors are summarized in this review article.

Perovskite-transition metal dichalcogenides heterostructures: recent advances and future perspectives

“…However, the large dark current due to the gapless nature and high conductivity of graphene has a strong adverse impact on the PDs detectivity and hinders these devices in some applications 239,253,254 . On the other hand, devices based on perovskite with TMDs hybrid structures showed a balanced performance 98,163,219,221,255 . In this section we discuss the state-of-the-art perovskite/TMD PDs starting with MAPbI 3 /TMD HSs as the mostly studied perovskite/TMD PDs then CsPbBr 3 /TMD HSs followed by other perovskite/TMD HSs.…”

Recent Advances in the Preparation and Application of Two-Dimensional Nanomaterials

“…Since Geim's successful preparation of single-layer graphene from graphite in 2004 [1], this material has attracted widespread attention due to its exceptional physical and electrochemical properties, including being a two-dimensional (2D) carbon material with excellent gas adsorption, high strength, ultra-low weight, low resistivity, and a room temperature Hall effect [2][3][4][5][6]. Despite its wide applications in sensors, biomaterials, energy, and other fields [7][8][9], graphene still lacks semiconductor properties due to its zero band gap. Furthermore, its high production cost and limited scalability restrict its application exclusively to high-end industries [10].…”

High-Performance Near-Infrared Photodetectors Based on the Synergy Effect of Short Wavelength Light Filter and Long Wavelength Response of a Perovskite/Polymer Hybrid Structure

“…Perovskite materials, owing to their high carrier mobility, effective charge collection, efficient light absorption, and low-cost preparation by the solution method, are widely used as active layer materials in solar cells − and photodetectors. ,− It was reported that the absorption range of perovskite materials can be effectively adjusted by changing the composition ratio of Cl – , Br – , and I – anions, which makes it possible to prepare a series of visible-blind spectrum tunable NIR photodetectors based on perovskite or perovskite/organic hybrid active layers. Lan et al reported the structure of CH 3 NH 3 PbI 3 (1700 nm)/PTB7-Th:PC 71 BM (200 nm) to accomplish an NIR narrowband perovskite-organic hybrid PDs with the CCN strategy.…”