Efficient production of few-layer black phosphorus by liquid-phase exfoliation

Abstract

Phosphorene is a new two-dimensional material that has recently attracted much attention owing to its fascinating electrical, optical, thermal and chemical properties. Here, we report on high-quality exfoliation of black phosphorus nanosheets, with controllable size produced in large quantities by liquid-phase exfoliation using N -methyl-2-pyrrolidone (NMP) as a solvent under ambient conditions. The as-synthesized few layers show a great potential for solar energy conversion based on the optical results shown in this work.

Hybrid Organic–Inorganic Perovskite Halide Materials for Photovoltaics towards Their Commercialization

“…To enter the market of PVs, the other aspects, such as the total cost (although the material is cheap enough) and the aging of perovskite materials relative to those made using silicon, need to be addressed. Advances in other materials for optoelectronic devices such as graphene, MoS 2 and compound semiconductors [197][198][199][200][201][202][203][204][205][206][207][208][209][210][211][212] are having a huge impact and benefitting the progress in the field of PVs either through the process techniques, or through the marketization strategies. In the end, the perovskite-silicon tandem solar cells have been introduced as the next generation of PVs and will replace the current technology of silicon PVs (in comparison of electric costs) [6].…”

Polymer Films for Photovoltaic Applications

“…To enter the market of PVs, the other aspects, such as the total cost (although the material is cheap enough) and the aging of perovskite materials relative to those made using silicon, need to be addressed. Advances in other materials for optoelectronic devices such as graphene, MoS 2 and compound semiconductors [197][198][199][200][201][202][203][204][205][206][207][208][209][210][211][212] are having a huge impact and benefitting the progress in the field of PVs either through the process techniques, or through the marketization strategies. In the end, the perovskite-silicon tandem solar cells have been introduced as the next generation of PVs and will replace the current technology of silicon PVs (in comparison of electric costs) [6].…”

“…Figure 3b shows the XRD patterns of perovskite films with and without PMMA polymer coating. The XRD patterns have characteristic peaks at (2θ = 15.54 • , 21.90 • , 31.09 • , and 51.56 • ), which correspond to diffraction from (100), ( 110), (200), and (311) crystal planes, respectively. All peaks were indexed to cubic phase in the Pm-3m space group (221) and XRD pattern samples could be indexed to the pure cubic phase of CsPbBr 3 (JCPDS card no.…”

Improved Power Conversion Efficiency with Tunable Electronic Structures of the Cation-Engineered [Ai]PbI3 Perovskites for Solar Cells: First-Principles Calculations

“…For all substitutions (except for Li 3 O and Li 3 S), the short circuit current ( J SC ), the open-circuit voltage ( V OC ) and the power conversion efficiency (PCE) are also calculated. We hypothesized that every photon energy above E is absorbed, always promoting the perovskite to generate electron-hole pairs [ 20 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ].…”