The toxicity issue of lead hinders large-scale commercial production and photovoltaic field application of lead halide perovskites. Some novel non- or low-toxic perovskite materials have been explored for development of environmentally friendly lead-free perovskite solar cells (PSCs). This review studies...
Mixed tin (Sn)-Pb halide perovskites have drawn significant attention, since their bandgap can be tuned to below 1.2 eV, which opens a door for fabricating all-perovskite tandem solar cells that can break the SQ radiative limit. This review summarizes the development of low-bandgap mixed Sn-...
A class of materials called perovskites has emerged as a promising alternative to silicon for making inexpensive and efficient solar cells. But for all their promise, perovskites are not without their downsides. Most contain lead, which is highly toxic, and include organic materials that are not p...
structure dimensions. Finally, the applications of lead-free perovskites in solar cells, light-emitting diodes, and X-ray detectors were examined. This review also provides suggestions for future research on lead-free perovskites. 摘要 卤化铅钙钛矿由于具有高吸收系数、高载流子迁移率、高 缺陷容忍度和高...
Alternatives to lead must fulfill some very stringent criteria to match the current performance of lead-halide perovskites, namely: (1) any alternatives should be low-cost, using abundant elements, be eas- ily-recycled, and should form new compounds with a stable perovskite structure; (2) these...
solar cells8. However, Pb-based perovskites typically present bandgaps over 1.4 eV, resulting in limited photocurrents. In contrast, mixed tin-lead (Sn-Pb) perovskites with narrow bandgaps (NBGs) of ~1.26 eV play a crucial role in developing efficient all-perovskite tandem solar cells9...
Lead (Pb) halide perovskites have witnessed highly promising achievements for high-efficiency solar cells, light-emitting diodes (LEDs), and photo/radiation detectors due to their exceptional optoelectronic properties. However, compound stability and Pb toxicity are still two main obstacles towards the ...
CsSnBr3, A Lead-free Halide Perovskite for Long-term Solar Cell Application: Insights on SnF2 Addition Solar cells based on 'halide perovskites' (HAPs), have demonstrated unprecedented high power conversion efficiencies in recent years. However, the well-known toxicity of lead (Pb), which is ...
Low bandgap tin–lead iodide perovskites are key components of all-perovskite tandem solar cells, but can be unstable because tin is prone to oxidation. Here, to avoid a reaction with the most popular hole contact, we eliminated polyethylenedioxythiophene:polystyrenesulfonate as a hole transport laye...
tandem solar cells thin films stability lead-free Introduction The rapid emergence of perovskite solar cells (PSCs) as a viable new thin film photovoltaic (PV) technology for single-junction and tandem PV applications has been remarkable.1, 2, 3, 4, 5, 6 The unprecedented combination of high...