A tale of two organic small molecular hole transporting materials: Showing same extended shelf-life but very different efficiency of inverted MAPbI3 perovskite solar cells

Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review

“…186 Dalimba et al developed two molecular HSMs, TPA-TPy ( F10 ) and TPA-Py-PTZ ( F11 ), composed of 2,4,6-trisubstituted pyridine as the acceptor core and 4,4′ -dimethoxytriphenylamine as the terminal donor groups. 187 The donor and acceptor fragments in TPA-TPy are linked with extended π-conjugation via a thiophene-vinylene-phenylene segment between the donor and acceptor, while they were directly linked in TPA-Py-PTZ. The extended π conjugated TPA-TPy exhibited a maximum PCE of 15.33%, while a poor PCE of 6.41% was observed with TPA-Py-PTZ.…”

Conformal Loading Effects of P3CT-Na Polymers on the Performance of Inverted Perovskite Solar Cells

“…Cs) [40][41][42][43] and p-type self-assembled monolayers (SAMs) [44][45][46][47]. Among these HTLs, P3CT-X and p-type SAM ultra-thin layers are also used as a hole modification layer (HML) to modify the surface work function of transparent anode electrodes (TCEs) [48,49].…”

“…On the other hand, inverted perovskite thin-film solar cells have been successfully integrated with silicon solar cells to form two-terminal tandem solar cells, resulting in a high PCE of 29.8% [21]. In inverted perovskite solar cells, the most widely used HTLs are conductive PEDOT:PSS polymer films [22][23][24][25], NiO x inorganic films [26][27][28][29], CuO x inorganic films [30][31][32], WO x inorganic films [33][34][35], poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) (PTAA) polymer films [36][37][38][39], poly(3-(4-carboxybutyl)thiophene-2,5-diyl)-X (P3CT-X) polymer films (X: Na, K, Rb and Cs) [40][41][42][43] and p-type self-assembled monolayers (SAMs) [44][45][46][47]. Among these HTLs, P3CT-X and p-type SAM ultra-thin layers are also used as a hole modification layer (HML) to modify the surface work function of transparent anode electrodes (TCEs) [48,49].…”