Enhanced photovoltaic performance of dye-sensitized solar cells based on NaYF4:Yb3+, Er3+-incorporated nanocrystalline TiO2 electrodes
作者： Guang Zhu , Hongyan Wang , Quanxin Zhang , Li Zhang
DOI: 10.1016/J.JCIS.2015.03.053
关键词:
摘要: Near infrared to visible up-conversion of light by rare earth ion-doped phosphors (NaYF 4 :Yb 3+ , Er ) that convert multiple photons lower energy higher offer new possibilities for improved performance photovoltaic devices. Here, phosphor NaYF doped nanocrystalline TiO 2 films are designed and used as a electrode dye-sensitized solar cells, the DSSCs based on composite electrodes investigated. The results show cell with achieves power conversion efficiency 7.65% under one sun illumination (AM 1.5G, 100 mW cm −2 ), which is an increase 14% compared without (6.71%). improvement attributed dual effects enhanced harvesting from extended absorption range increased scattering, electron transfer resistance.
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