Earth-abundant non-toxic perovskite nanocrystals for solution processed solar cells

Abstract

Semiconductor nanocrystals, used in quantum dot solar cells, are interesting materials for photovoltaics because they can be obtained in solution and can be composed of abundant elements. Moreover, as compared...

Tiny spots to light the future: advances in synthesis, properties, and application of perovskite nanocrystals in solar cells

“…Recent advances are obtained for the replacement of lead with tin, germanium, bismuth, and antimony; however, the efficiency is far behind the Pbbased-PNC solar cells. 289 Beyond PNC, other lead-free materials have been investigated, for instance, silver bismuth sulfide (AgBiS 2 ) demonstrating a record efficiency of 9.17%. 290 As can be seen in this Review, there is a long way toward the commercialization of PNC solar cells, and several questions about the fundamental properties of the material and the device are still open.…”

“…Recent advances are obtained for the replacement of lead with tin, germanium, bismuth, and antimony; however, the efficiency is far behind the Pb-based-PNC solar cells. 289 Beyond PNC, other lead-free materials have been investigated, for instance, silver bismuth sulfide (AgBiS 2 ) demonstrating a record efficiency of 9.17%. 290…”

Spiers Memorial Lecture: Next generation chalcogenide-based absorbers for thin-film solar cells

“…Further, we will restrict the discussion to bulk ( i.e. , contrasting with nanocrystal-based approaches wherein quantum confinement plays an important role 18–20 ) absorbers and those systems for which successful PV devices have already been demonstrated ( i.e. , neglecting the important field of theoretically predicted solar absorber materials, if the predicted systems have not been experimentally demonstrated 21–23 ).…”

“…Notably, some systems that played an important early role in chalcogenide-based TFPV material development, Cu 2 S and pyrite (Fe 2 S 3 ), [13][14][15][16][17] are not explored in the current review. Further, we will restrict the discussion to bulk (i.e., contrasting with nanocrystal-based approaches wherein quantum connement plays an important role [18][19][20] ) absorbers and those systems for which successful PV devices have already been demonstrated (i.e., neglecting the important eld of theoretically predicted solar absorber materials, if the predicted systems have not been experimentally demonstrated [21][22][23] ).…”

Enhanced Structural Stability and Pressure‐Induced Photoconductivity in Two‐Dimensional Hybrid Perovskite (C6H5CH2NH3)2CuBr4

“…Two‐dimensional (2D) perovskites with high thermodynamic stability are perfect candidates as absorbent layers for perovskite solar cells because of their effective charge transportation for metal–halogen octahedral layers [9, 10] . Especially 2D non‐toxic perovskite materials can simultaneously solve the problems of poor stability and high toxicity of solar cell devices [11] . Moreover, the 2D structures are suitable for the preparation of intercalation amine cations, [12, 13] such as phenyl ethyl iodide amine (PEA + ) or butyl iodide amine (BA + ).…”