A long-term thermally stable, inexpensively produced, inorganic-hole extraction layer (i-HEL) is the best choice for the commercialization of air-thermo-stable, low-cost, highly-efficient perovskite solar cells (PSCs).
A new strategy is introduced to fabricate NiOx films over perovskite layers to achieve highly stable perovskite solar cells.
Zn-TFSI2 is introduced as a powerful p-dopant for spiro-MeOTAD in perovskite solar cells which not only outperforms Li-TFSI but also achieves outstanding long term stability.
Triflic acid dispersed in an apolar solvent exhibited a superior doping effect and stability on carbon nanotube electrodes. The carbon nanotube electrode-based perovskite solar cells exceeded the metal electrode-based counterpart in terms of efficiency.
The cost-effective hole transporting material ACR-TPA based on a 9,9-dimethyl-9,10-dihydroacridine core is synthesized and found to be a promising alternative to spiro-MeOTAD because of its comparable photovoltaic performance.