Reduced ultraviolet light induced degradation and enhanced light harvesting using YVO4:Eu3+ down-shifting nano-phosphor layer in organometal halide perovskite solar cells
作者： Nikhil Chander , AF Khan , PS Chandrasekhar , Eshwar Thouti , Sanjay Kumar Swami
DOI: 10.1063/1.4891181
关键词:
摘要: We report a simple method to mitigate ultra-violet (UV) degradation in TiO2 based perovskite solar cells (PSC) using transparent luminescent down-shifting (DS) YVO4:Eu3+ nano-phosphor layer. The PSC coated with DS phosphor showed an improvement stability under prolonged illumination retaining more than 50% of its initial efficiency, whereas without the layer degraded ∼35% value. also provided ∼8.5% enhancement photocurrent due incident UV photons into additional red photons. thus served bi-functional role by reducing photo-degradation as well enhancing energy conversion efficiency.
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