Reduced ultraviolet light induced degradation and enhanced light harvesting using YVO4:Eu3+ down-shifting nano-phosphor layer in organometal halide perovskite solar cells

被引：152

作者：

Chander, Nikhil ^{[1
]}

Khan, A. F. ^{[1
,2
]}

Chandrasekhar, P. S. ^{[1
]}

Thouti, Eshwar ^{[1
]}

Swami, Sanjay Kumar ^{[1
]}

Dutta, Viresh ^{[1
]}

Komarala, Vamsi K. ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Ctr Energy Studies, Photovolta Lab, New Delhi 110016, India

[2] Govt India, Dept Elect & Informat Technol, Minist Commun & Informat Technol, New Delhi 110003, India

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 03期

关键词：

ELECTRON; ORGANIZATION; TIO2;

D O I：

10.1063/1.4891181

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a simple method to mitigate ultra-violet (UV) degradation in TiO2 based perovskite solar cells (PSC) using a transparent luminescent down-shifting (DS) YVO4:Eu3+ nano-phosphor layer. The PSC coated with DS phosphor showed an improvement in stability under prolonged illumination retaining more than 50% of its initial efficiency, whereas PSC without the phosphor layer degraded to similar to 35% of its initial value. The phosphor layer also provided similar to 8.5% enhancement in photocurrent due to DS of incident UV photons into additional red photons. YVO4:Eu3+ layer thus served a bi-functional role in PSC by reducing photo-degradation as well as enhancing energy conversion efficiency. (C) 2014 AIP Publishing LLC.

引用

页数：5

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