Simple and sustainable synthesis of perovskite-based optoelectronic material: CsPbBr₃ nanocrystals via laser ablation in alcohol

Abstract

All-inorganic lead halide perovskite nanocrystals (NCs) have shown great potential as emerging semiconducting materials due to their excellent optoelectronic properties. However, syntheses in solution commonly use high temperatures and toxic...

Myth behind Metastable and Stable n-Hexylammonium Bromide-Based Low-Dimensional Perovskites

“…7−10 For large-scale applications of lead halide perovskites, the use of a toxic lead element and the heavy consumption of other related raw materials are another critical consideration for the environmental-friendly and sustainable development of this photovoltaic technology. 11,12 Recently, using recycled materials for the device fabrication and recycling the chemical components in used PSCs have been reported as some promising means for practical resource saving and recovery. 13−15 Several strategies have been explored to minimize nonradiative recombination losses at interfaces and thus improve the V oc of devices.…”

“…Perovskite solar cells (PSCs) have achieved rapid progress with the best certified single-junction power conversion efficiency (PCE) of 25.7% . Perovskites exhibit outstanding optoelectronic properties including a high optical absorption cross-section, low exciton binding energies, long-range charge carrier diffusion lengths, and easy tuning of the band gaps. − Nevertheless, the improvement in device efficiency and stability is always the main challenge for the commercialization of PSCs, and the solution to both issues is highly related to the reduction of defects. , For example, the open-circuit voltage ( V oc ) of PSCs can be unfavorably lowered by the occurrence of non-radiative recombination at defected sites, the ion migration under a working built-in electric field, and light-soaking-induced structural degradation. − For large-scale applications of lead halide perovskites, the use of a toxic lead element and the heavy consumption of other related raw materials are another critical consideration for the environmental-friendly and sustainable development of this photovoltaic technology. , Recently, using recycled materials for the device fabrication and recycling the chemical components in used PSCs have been reported as some promising means for practical resource saving and recovery. − …”

Stability enhancement and pronounced three-photon absorption in SrCl2-doped FAPbBr3nano crystals

“…17 Sansoni et al synthesized CsPbBr 3 NCs under ambient conditions via a top-down approach. 18 OIHP PSCs were used in a highly integrated flexible photo-rechargeable system based on quasi-solid-state zinc-ion micro-batteries. 19 Interestingly, OIHP-based SCs achieved a power conversion efficiency (PCE) of 25.8%.…”

The effect of boron doping on the optical, morphological and structural properties of Cu3SbS3thin films preparedviaspin coating

“…Despite their high efficiency, however, syntheses in solution commonly use high temperatures and toxic solvents, which are obstacles for the safety and sustainability of the process. 14,15 To overcome these hurdles, new PV absorber materials based on inexpensive, non-toxic, chemically stable and earth-abundant elements have been investigated to produce materials with easily controllable stoichiometries, low defect densities and good optoelectronic properties. 13,[16][17][18] Copper antimony sulfide (CAS) compounds have been recently seen as a good alternative to conventional materials as they have suitable optical and electrical properties for PV applications, and good-quality crystals can be grown at lower temperatures (B400-600 1C), unlike commonly used CIGS (B986 1C), CdTe (B1041 1C) and CZTS (B990 1C) thin films (Fig.…”

“…This proposed system has a peak PCE of 20.40% in the visible spectrum, a J sc of 24.3042 mA cm À2 , a V oc of 0.9717 V, and a V oc of 0.9717 V. It is calculated to give an FF of 86.24%. 14 It is known that the addition of a dopant to the semiconductor improves the performance of the material. Generally, doping is done with metals such as Ga, Al, Zn, Mn, Na, Cu, Ca or Ag.…”