Hexamethylenetetramine-mediated growth of grain-boundary-passivation CH3NH3PbI3 for highly reproducible and stable perovskite solar cells

Yan-Zhen  Zheng; Xi-Tao  Li; Er-Fei  Zhao; Xin-Ding Lv; Fan-Li  Meng; Chao Peng; Xue-Sen Lai; Meilan Huang; Guozhong Cao; Xia Tao; Jian-Feng Chen

doi:10.1016/j.jpowsour.2017.12.011

Hexamethylenetetramine-mediated growth of grain-boundary-passivation CH3NH3PbI3 for highly reproducible and stable perovskite solar cells

Yan-Zhen Zheng, Xi-Tao Li, Er-Fei Zhao, Xin-Ding Lv, Fan-Li Meng, Chao Peng, Xue-Sen Lai, Meilan Huang^*, Guozhong Cao, Xia Tao^*, Jian-Feng Chen

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

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

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Abstract

Simultaneously achieving the long-term device stability and reproducibility has proven challenging in perovskite solar cells because solution-processing produced perovskite film with grain boundary is sensitive to moisture. Herein, we develop a hexamethylenetetramine (HMTA)-mediated one-step solution-processing deposition strategy that leads to the formation of high-purity and grain-boundary-passivation CH3NH3PbI3 film and thereby advances cell optoelectronic performance. Through morphological and structural characterizations and theoretical calculations, we demonstrate that HMTA fully occupies the moisture-exposed surface to build a bridge across grain boundary and coordinates with Pb ions to inhibit the formation of detrimental PbI2. Such HMTA-mediated grown CH3NH3PbI3 films achieves a decent augmentation of power conversion efficiency (PCE) from 12.70% to 17.87%. A full coverage of PbI2-free CH3NH3PbI3 surface on ZnO also boosts the device's stability and reproducibility.

Original language	English
Pages (from-to)	103-109
Journal	Journal of Power Sources
Volume	377
Early online date	22 Dec 2017
DOIs	https://doi.org/10.1016/j.jpowsour.2017.12.011
Publication status	Published - 15 Feb 2018

Bibliographical note

This is an interdisciplinary research in collaboration with Chemical Engineers from Beijing University of Chemical Technology.

Journal of Power Sources is a peer-reviewed journal with an Impact Factor of 9.1

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Hexamethylenetetramine-mediated growth of grain-boundarypassivation CH3NH3PbI3 for highly reproducible and stable perovskite solar cells
Copyright 2017 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 2.07 MBLicence: CC BY-NC-ND

Meilan Huang
- m.huangqub.acuk
- School of Chemistry and Chemical Engineering - Senior Lecturer
- Theoretical and Applied Catalysis
Person: Academic

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@article{91ab5e0a413345edaae0cde3ef71fbbb,

title = "Hexamethylenetetramine-mediated growth of grain-boundary-passivation CH3NH3PbI3 for highly reproducible and stable perovskite solar cells",

abstract = "Simultaneously achieving the long-term device stability and reproducibility has proven challenging in perovskite solar cells because solution-processing produced perovskite film with grain boundary is sensitive to moisture. Herein, we develop a hexamethylenetetramine (HMTA)-mediated one-step solution-processing deposition strategy that leads to the formation of high-purity and grain-boundary-passivation CH3NH3PbI3 film and thereby advances cell optoelectronic performance. Through morphological and structural characterizations and theoretical calculations, we demonstrate that HMTA fully occupies the moisture-exposed surface to build a bridge across grain boundary and coordinates with Pb ions to inhibit the formation of detrimental PbI2. Such HMTA-mediated grown CH3NH3PbI3 films achieves a decent augmentation of power conversion efficiency (PCE) from 12.70% to 17.87%. A full coverage of PbI2-free CH3NH3PbI3 surface on ZnO also boosts the device's stability and reproducibility.",

author = "Yan-Zhen Zheng and Xi-Tao Li and Er-Fei Zhao and Xin-Ding Lv and Fan-Li Meng and Chao Peng and Xue-Sen Lai and Meilan Huang and Guozhong Cao and Xia Tao and Jian-Feng Chen",

note = "This is an interdisciplinary research in collaboration with Chemical Engineers from Beijing University of Chemical Technology. Journal of Power Sources is a peer-reviewed journal with an Impact Factor of 9.1",

year = "2018",

month = feb,

day = "15",

doi = "10.1016/j.jpowsour.2017.12.011",

language = "English",

volume = "377",

pages = "103--109",

journal = "Journal of Power Sources",

issn = "0378-7753",

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TY - JOUR

T1 - Hexamethylenetetramine-mediated growth of grain-boundary-passivation CH3NH3PbI3 for highly reproducible and stable perovskite solar cells

AU - Zheng, Yan-Zhen

AU - Li, Xi-Tao

AU - Zhao, Er-Fei

AU - Lv, Xin-Ding

AU - Meng, Fan-Li

AU - Peng, Chao

AU - Lai, Xue-Sen

AU - Huang, Meilan

AU - Cao, Guozhong

AU - Tao, Xia

AU - Chen, Jian-Feng

N1 - This is an interdisciplinary research in collaboration with Chemical Engineers from Beijing University of Chemical Technology. Journal of Power Sources is a peer-reviewed journal with an Impact Factor of 9.1

PY - 2018/2/15

Y1 - 2018/2/15

N2 - Simultaneously achieving the long-term device stability and reproducibility has proven challenging in perovskite solar cells because solution-processing produced perovskite film with grain boundary is sensitive to moisture. Herein, we develop a hexamethylenetetramine (HMTA)-mediated one-step solution-processing deposition strategy that leads to the formation of high-purity and grain-boundary-passivation CH3NH3PbI3 film and thereby advances cell optoelectronic performance. Through morphological and structural characterizations and theoretical calculations, we demonstrate that HMTA fully occupies the moisture-exposed surface to build a bridge across grain boundary and coordinates with Pb ions to inhibit the formation of detrimental PbI2. Such HMTA-mediated grown CH3NH3PbI3 films achieves a decent augmentation of power conversion efficiency (PCE) from 12.70% to 17.87%. A full coverage of PbI2-free CH3NH3PbI3 surface on ZnO also boosts the device's stability and reproducibility.

AB - Simultaneously achieving the long-term device stability and reproducibility has proven challenging in perovskite solar cells because solution-processing produced perovskite film with grain boundary is sensitive to moisture. Herein, we develop a hexamethylenetetramine (HMTA)-mediated one-step solution-processing deposition strategy that leads to the formation of high-purity and grain-boundary-passivation CH3NH3PbI3 film and thereby advances cell optoelectronic performance. Through morphological and structural characterizations and theoretical calculations, we demonstrate that HMTA fully occupies the moisture-exposed surface to build a bridge across grain boundary and coordinates with Pb ions to inhibit the formation of detrimental PbI2. Such HMTA-mediated grown CH3NH3PbI3 films achieves a decent augmentation of power conversion efficiency (PCE) from 12.70% to 17.87%. A full coverage of PbI2-free CH3NH3PbI3 surface on ZnO also boosts the device's stability and reproducibility.

U2 - 10.1016/j.jpowsour.2017.12.011

DO - 10.1016/j.jpowsour.2017.12.011

M3 - Article

SN - 0378-7753

VL - 377

SP - 103

EP - 109

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Hexamethylenetetramine-mediated growth of grain-boundary-passivation CH3NH3PbI3 for highly reproducible and stable perovskite solar cells

Abstract

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Meilan Huang

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