Photovoltaic devices based on PPHT: ZnO and dye-sensitized PPHT: ZnO thin films

The contribution of coumarin 6 in light harvesting and photocurrent of P3HT:PCBM bulk heterojunction solar cell

“…On the other hand, the C6 absorption peaks in the blends do not effectively red shift by thermal annealing. This can be attributed to molecular diffusion of the small C6 molecules in the polymer matrix [29]. The red shift in the absorption of the P3HT:C6:PCBM blend films by thermal annealing is an indication of increasing the conjugation length in the blends, even if this increasing is as a fine-scale increasing in the case of C6 dye (as a small molecular weight compound).…”

Routes to energy conversion with functional oxide films and nanostructures, a short review

“…materials in photovoltaic and photoactive devices [39][40][41] due to the advantageous properties of ZnO as the electron collector. There is also interest in using ZnO as a visible blind photon detector [42,43]due to the band gap of the ZnO and control of the defect structure enables tuning of light emission and collection [44,45].…”

Synthesis, Characterization, and Photovoltaic Properties of Poly(3-Phenyl Azomethine Alkylthiophene) Polymers

“…29,30 Sharma et al reported hybrid solar cells based on poly(3-phenyl azomethine thiophene) (PPHT) with ZnO and dye-sensitized PPHT with ZnO thin films; the dependence of the photovoltaic parameters on the weight fraction of ZnO in PPHT:ZnO was also investigated, showing that the device with 45% ZnO in both composites exhibited the best photovoltaic performance with a PCE of 0.12% and 0.52%, respectively. 31 The absorption ability of p-type polymers can be intensified by introducing additional absorptive chromophores attached directly and conjugatively to the main chain backbone to achieve better photovoltaic performance. 12,32 Li et al developed a series of polythiophene derivatives with conjugated bi(thienylenevinylene) side-chains and observed strong, broad absorption extending from 350 nm to 650 nm.…”