Interface modification of polymer solar cells using graphene oxide and TiO2 NPs
作者： Xu Hu , Jian Xiong , Yanhong Tang , Conghua Zhou , Junliang Yang
关键词: Oxide 、 PEDOT:PSS 、 Coating 、 Layer (electronics) 、 Graphene 、 Nanotechnology 、 Energy conversion efficiency 、 Polymer solar cell 、 Nanocrystalline material 、 Chemical engineering 、 Materials science
摘要: The photovoltaic behavior and stability of P3HT:PCBM bulk heterojunction polymer solar cells (PSCs) were studied in detail, which graphene oxide (GO) TiO2 nanocrystalline particles (TiO2 NPs) used as hole transport layer (HTL) electron (ETL), respectively. power conversion efficiency (PCE) PSC devices with the GO HTL reached 3.09%, is comparable to those using PEDOT:PSS HTL. PCE was further improved by NPs buffer ETL 3.32%. interface capacitance analysis electrochemical impedance measurement confirmed that PSCs has better properties than PEDOT:PSS. device showed are much more stable layer. PCEs both layers could retain 60% its initial value after 180 h exposure high humidity atmospheric environment (air ∼80%). study combination acted ETL, respectively, potentials for preparing efficient devices, can match printing or coating techniques.
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