Are lead-free perovskite-inspired materials (PIMs) the wise choice for efficient yet sustainable indoor light harvesting? This feature article outlines how wide-bandgap PIMs can provide a positive answer to this compelling question. The wide band gaps can hinder sunlight absorption, in turn limiting the solar cell performance. However, PIMs based on group VA of the periodic table can theoretically lead to an outstanding indoor power conversion efficiency up to 60% when their band gap is ∼2 eV. Yet, the research on PIM-based indoor photovoltaics (IPVs) is still in an early stage with highest indoor device efficiencies up to 10%. This article reviews the recent advancements on PIMs for IPVs and identifies the main limiting factors of device performance, thus suggesting effective strategies to address them. We emphasize the poor operational stability of the IPV devices of PIMs being the key bottleneck for the vast adoption of this technology. We believe that this report can provide a solid scaffolding for further researching this fascinating class of materials, ultimately supporting our vision that, upon extensive advancement of the stability and efficiency, PIMs with wide bandgap will become a contender for the next-generation absorbers for sustainable indoor light harvesting.
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http://dx.doi.org/10.1039/d3cc01881d | DOI Listing |
ACS Nano
December 2024
Key Lab of Artifcial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China.
Ultraviolet photodetectors (UV PDs) based on microcrystals (MCs) have attracted extensive attention due to their outstanding detection performance. Nevertheless, precise manipulation of the MCs still remains challenging, which may hinder the mass processing and performance improvement of the UV PDs. In this work, a single high-quality CsCuI MC that had a special X-shaped morphology was demonstrated to be successfully manipulated to prepare high-performance UV PDs by virtue of optical focusing, probe micromanipulation, and direct-write photolithography techniques.
View Article and Find Full Text PDFJ Phys Chem Lett
August 2024
Consiglio Nazionale delle Ricerche, Istituto di Nanotecnologia - CNR NANOTEC, Via Monteroni, 73100 Lecce, Italy.
Heavy pnictogen chalcohalides are often termed lead-free, perovskite-inspired materials. Despite theoretical predictions, incontrovertible experimental demonstrations of heavy pnictogen chalcohalides adopting a perovskite structure are lacking. Here we report our attempts to prepare CsBiSCl adopting a perovskite structure as colloidal nanocrystals.
View Article and Find Full Text PDFACS Appl Mater Interfaces
April 2024
Hybrid Solar Cells, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, Tampere FI-33014, Finland.
CuAgBiI (CABI) is a promising perovskite-inspired absorber for solar cells due to its direct band gap and high absorption coefficient. However, the nonradiative recombination caused by the high extrinsic trap density limits the performance of CABI-based solar cells. In this work, we employ halide engineering by doping bromide anions (Br) in CABI thin films, in turn significantly improving the power conversion efficiency (PCE).
View Article and Find Full Text PDFNanoscale
February 2024
Photonics Laboratory, Physics Unit, Tampere University, Korkeakoulunkatu 3, 33720, Tampere, Finland.
We introduce the use of correlative third-harmonic generation and multiphoton-induced luminescence microscopy to investigate the impact of manganese (Mn) doping on bismuth (Bi)-based perovskite-inspired nanocrystal thin films. The technique was found to be extremely sensitive to the microscopic features of the perovskite film and its structural compositions, allowing the unambiguous detection of compositionally different emitters in the perovskite film and manipulation of their nonlinear optical responses. Our work unveils a new way to investigate, manipulate, and exploit perovskite-inspired functional materials for nonlinear optical conversion at the nanoscale.
View Article and Find Full Text PDFAdv Mater
February 2024
Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, UK.
The past decade has witnessed a rapid rise in the performance of optoelectronic devices based on lead-halide perovskites (LHPs). The large mobility-lifetime products and defect tolerance of these materials, essential for optoelectronics, also make them well-suited for radiation detectors, especially given the heavy elements present, which is essential for strong X-ray and γ-ray attenuation. Over the past decade, LHP thick films, wafers, and single crystals have given rise to direct radiation detectors that have outperformed incumbent technologies in terms of sensitivity (reported values up to 3.
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