Enhanced Electrons Extraction of Lithium-Doped SnO2 Nanoparticles for Efficient Planar Perovskite Solar Cells

Waseem Ahmad; Detao Liu; Jiang Wu; Waqas Ahmad; Yafei Wang; Peng Zhang; Ting Zhang; Hualin Zheng; Li Chen; Zhi David Chen; Shibin Li

doi:10.1109/JPHOTOV.2019.2924734

Enhanced Electrons Extraction of Lithium-Doped SnO₂ Nanoparticles for Efficient Planar Perovskite Solar Cells

Waseem Ahmad
, Detao Liu
, Jiang Wu
, Waqas Ahmad
, Yafei Wang
, Peng Zhang
, Ting Zhang
, Hualin Zheng
, Li Chen
, Zhi David Chen
, Shibin Li

Producción científica: Article › revisión exhaustiva

12 Citas (Scopus)

Resumen

Hybrid lead halide perovskite solar cells (PSCs) are amongst those efficient solar cell technologies which are developing rapidly. The rapid advancement in PSCs technology is because of favorable properties of perovskite materials and addition of charge selective layers. Here, we report lithium-doped SnO₂ electron transport layer (ETL) to improve electrons extraction from the perovskite absorbing layer. The lithium-doped SnO₂ not only shows relatively higher conductivity, reduced oxygen-deficient regions, improved oxidation state, but also induces a larger grain size of perovskite films. This leads to an improvement in all related photovoltaic parameters of the methylammonium lead iodide (MAPbI₃) planar heterojunction PSCs. The champion device yields a power conversion efficiency of 19.09%. The simple solution and lower annealing processed ETLs are compatible with almost all substrates used in PSCs and other perovskite-based devices.

Idioma original	English
Número de artículo	8765758
Páginas (desde-hasta)	1273-1279
Número de páginas	7
Publicación	IEEE Journal of Photovoltaics
Volumen	9
N.º	5
DOI	https://doi.org/10.1109/JPHOTOV.2019.2924734
Estado	Published - sept 2019

Nota bibliográfica

Publisher Copyright:
© 2011-2012 IEEE.

Financiación

Manuscript received October 10, 2018; revised February 6, 2019; accepted June 18, 2019. Date of publication July 18, 2019; date of current version August 22, 2019. This work was supported in part by the National Natural Science Foundation of China under Grants 61874150, 61421002, and 61574029 and in part by the University of Kentucky. (Waseem Ahmad and Detao Liu contributed equally to this work.) (Corresponding author: Shibin Li.) W. Ahmad, D. Liu, W. Ahmad, Y. Wang, P. Zhang, T. Zhang, H. Zheng, L. Chen, and S. Li are with the State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China (e-mail: [email protected]; [email protected]; emam7214@ yahoo.com; [email protected]; [email protected]; 417362524@ qq.com; [email protected]; [email protected]; shibinli@ uestc.edu.cn).

Financiadores	Número del financiador
University of Kentucky
National Natural Science Foundation of China (NSFC)	61574029, 61874150, 61421002
National Natural Science Foundation of China (NSFC)

ODS de las Naciones Unidas

Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible

Affordable and clean energy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Enhanced Electrons Extraction of Lithium-Doped SnO2 Nanoparticles for Efficient Planar Perovskite Solar Cells",

abstract = "Hybrid lead halide perovskite solar cells (PSCs) are amongst those efficient solar cell technologies which are developing rapidly. The rapid advancement in PSCs technology is because of favorable properties of perovskite materials and addition of charge selective layers. Here, we report lithium-doped SnO2 electron transport layer (ETL) to improve electrons extraction from the perovskite absorbing layer. The lithium-doped SnO2 not only shows relatively higher conductivity, reduced oxygen-deficient regions, improved oxidation state, but also induces a larger grain size of perovskite films. This leads to an improvement in all related photovoltaic parameters of the methylammonium lead iodide (MAPbI3) planar heterojunction PSCs. The champion device yields a power conversion efficiency of 19.09\%. The simple solution and lower annealing processed ETLs are compatible with almost all substrates used in PSCs and other perovskite-based devices.",

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AU - Wu, Jiang

AU - Ahmad, Waqas

AU - Wang, Yafei

AU - Zhang, Peng

AU - Zhang, Ting

AU - Zheng, Hualin

AU - Chen, Li

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AU - Li, Shibin

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AB - Hybrid lead halide perovskite solar cells (PSCs) are amongst those efficient solar cell technologies which are developing rapidly. The rapid advancement in PSCs technology is because of favorable properties of perovskite materials and addition of charge selective layers. Here, we report lithium-doped SnO2 electron transport layer (ETL) to improve electrons extraction from the perovskite absorbing layer. The lithium-doped SnO2 not only shows relatively higher conductivity, reduced oxygen-deficient regions, improved oxidation state, but also induces a larger grain size of perovskite films. This leads to an improvement in all related photovoltaic parameters of the methylammonium lead iodide (MAPbI3) planar heterojunction PSCs. The champion device yields a power conversion efficiency of 19.09%. The simple solution and lower annealing processed ETLs are compatible with almost all substrates used in PSCs and other perovskite-based devices.

KW - Lithium doping

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