Enhanced power conversion efficiency and preferential orientation of the MAPbI3 perovskite solar cells by introduction of urea as additive

Ying Li; Lingwei Li; Aditya S. Yerramilli; Yuanqing Chen; Daining Fang; Yuxia Shen; T. L. Alford

doi:10.1016/j.orgel.2019.06.013

Enhanced power conversion efficiency and preferential orientation of the MAPbI₃ perovskite solar cells by introduction of urea as additive

Ying Li, Lingwei Li, Aditya S. Yerramilli, Yuanqing Chen, Daining Fang, Yuxia Shen, T. L. Alford^*

^*Corresponding author for this work

Institute of Advanced Structure Technology

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

In this investigation, urea (NH₂CONH₂) was added into the perovskite precursor solution with Pb(CH₃COO)₃ as precursor. The effects of the urea content in the solution on the crystallization dynamics and the orientation of the perovskite films, and their photovoltaic properties were investigated. The results showed that the optimal annealing duration for the perovskite film increased with the urea content in the solution. An interaction between the urea and the source materials was observed. As a result, urea addition in the Pb(CH₃COO)₃ based solution has an effect on the crystallization rate and the grain size of the perovskite phase. We found that the suitable amount of urea in the solution was beneficial for the formation of highly (110)-oriented perovskite films and this resulted in the corresponding solar cells with enhanced power conversion efficiency of nearly 17%.

Original language	English
Pages (from-to)	130-136
Number of pages	7
Journal	Organic Electronics
Volume	73
DOIs	https://doi.org/10.1016/j.orgel.2019.06.013
Publication status	Published - Oct 2019

Keywords

Crystallization dynamics
Perovskite
Power conversion efficiency
Solar cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.orgel.2019.06.013

Cite this

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title = "Enhanced power conversion efficiency and preferential orientation of the MAPbI3 perovskite solar cells by introduction of urea as additive",

abstract = "In this investigation, urea (NH2CONH2) was added into the perovskite precursor solution with Pb(CH3COO)3 as precursor. The effects of the urea content in the solution on the crystallization dynamics and the orientation of the perovskite films, and their photovoltaic properties were investigated. The results showed that the optimal annealing duration for the perovskite film increased with the urea content in the solution. An interaction between the urea and the source materials was observed. As a result, urea addition in the Pb(CH3COO)3 based solution has an effect on the crystallization rate and the grain size of the perovskite phase. We found that the suitable amount of urea in the solution was beneficial for the formation of highly (110)-oriented perovskite films and this resulted in the corresponding solar cells with enhanced power conversion efficiency of nearly 17%.",

keywords = "Crystallization dynamics, Perovskite, Power conversion efficiency, Solar cells",

author = "Ying Li and Lingwei Li and Yerramilli, {Aditya S.} and Yuanqing Chen and Daining Fang and Yuxia Shen and Alford, {T. L.}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

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doi = "10.1016/j.orgel.2019.06.013",

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T1 - Enhanced power conversion efficiency and preferential orientation of the MAPbI3 perovskite solar cells by introduction of urea as additive

AU - Li, Ying

AU - Li, Lingwei

AU - Yerramilli, Aditya S.

AU - Chen, Yuanqing

AU - Fang, Daining

AU - Shen, Yuxia

AU - Alford, T. L.

PY - 2019/10

Y1 - 2019/10

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AB - In this investigation, urea (NH2CONH2) was added into the perovskite precursor solution with Pb(CH3COO)3 as precursor. The effects of the urea content in the solution on the crystallization dynamics and the orientation of the perovskite films, and their photovoltaic properties were investigated. The results showed that the optimal annealing duration for the perovskite film increased with the urea content in the solution. An interaction between the urea and the source materials was observed. As a result, urea addition in the Pb(CH3COO)3 based solution has an effect on the crystallization rate and the grain size of the perovskite phase. We found that the suitable amount of urea in the solution was beneficial for the formation of highly (110)-oriented perovskite films and this resulted in the corresponding solar cells with enhanced power conversion efficiency of nearly 17%.

KW - Crystallization dynamics

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