| Summary: | 碩士 === 國立虎尾科技大學 === 光電工程系光電與材料科技碩士班 === 107 === In this study, PEDOT:PSS is used as the hole transport layer of perovskite solar cells. By doping different materials making conductivity and surface of the film is better and smoothness, thereby improving the perovskite solar cell efficiency.
The experimental perovskite solar structure is Glass / ITO / PEDOT:PSS / MAPbI3 / PCBM / Ag, and ethylene glycol, glycerol (C3H5(OH)3), tetrahydrofuran(THF) and Dimethyl sulfoxide (DMSO) are added to PEDOT:PSS, were used to investigate the effect of PEDOT:PSS on the efficiency of perovskite solar cells at different annealing temperatures and doping concentrations.
Finally, the element doped with 3 wt% THF has better characteristics. It increases of conductivity and decreases resistivity of PEDOT:PSS effective. In addition, it has little effect on the surface of thin films and has a smooth contact surface with perovskite layer, which improves the current characteristics. The best current density is 21.9mA, and the efficiency is 7.77%. Compared with undoped components, the efficiency is increased by 44%.
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