Sb2S3 and Cu3SbS4 nanocrystals as inorganic hole transporting materials in perovskite solar cells

Poly(N,N′‐bis‐4‐butylphenyl‐N,N′‐biphenyl)benzidine as Interfacial Passivator for Dopant‐Free P3HT Hole Transport Layer‐Based Perovskite Solar Cell in Regular Mesoscopic Architecture

“…The energy-level alignment of the illustrated structure as a function of each layer is presented in Figure 1b. Depending on provided information, [70,[74][75][76] and data extracted from tauc plots and UV-vis absorption spectra of different types of materials (Figure S1, Supporting Information), P3HT has an unmatched HOMO level (À5.2 eV) with respect to triple cation perovskite (À5.59 eV), which may lead to charge losses at the perovskite/HTL interface. By inserting a PolyTPD layer that has a more promising energylevel alignment (À5.4 eV) as reported in the literature (Figure 1b and S1c,d, Supporting Information), [70,76] the overall cell device performance was improved.…”

Electronic structure, defect properties, and optimization of the band gap of the earth-abundant and low-toxicity photovoltaic absorber Cu3SbS4

“…67 In addition, ), they have a high energy position versus vacuum. [68][69][70] According to the doping limit rule in semiconductors, 71 it is easy to achieve p-type doping and hard to form n-type defects with a large doping concentration if the semiconductor has a high ionization potential. Consistent with that rule, the prominent native impurities are the p-type defects V Cu and Cu In/Zn in both chalcopyrite CuInSe 2 72 and kesterite Cu 2 ZnSnS 4 .…”

Improving the performance of perovskite solar cells using a dual-hole transport layer

“…24 A number of studies have been reported on the use of poly-TPD as HTL instead of PEDOT:PSS in IPVSCs. [25][26][27] Xu et al reported IPVSCs based on poly-TPD with a superior PCE of 18.19%. Due to poly-TPD's high hydrophobicity and more suitable energy level arrangement, after 16 days in conditions of high relative humidity (70% RH), the performance level was found to retain 85% of its initial value.…”