“…Spin coating was also used to process the PEDOT:PSS hole transport layers as mentioned in the studies, 36,39,42,45,49,51,52,54,56‐60,66,68,72,75‐77,82‐84,86‐96 Au@SiO 2 ‐WO 3 in the study, 65 GO/NiO x in the study, 97 PDDA‐GO in the study, 76 of the AgNWs cathode in an inverted OPV in the studies, 52,60 of the electron transport layers NaCl:MeOH in the study, 63 CNTs‐TiO x in the study, 55 FTO/PEIE in the study, 81 PEIE in the studies, 75,81,86 and ZnO in the studies 36,39,42,55,61,64,68,71,72,74,82,83 …”