Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells

Guixiang Li; Yalei Hu; Meng Li; Ying Tang; Zuhong Zhang; Artem Musiienko; Qing Cao; Fatima Akhundova; Jinzhao Li; Karunanantharajah Prashanthan; Fengjiu Yang; Patryk Janasik; Augustine N.S. Appiah; Sergei Trofimov; Nikolaos Livakas; Shengnan Zuo; Luyan Wu; Luyao Wang; Yuqian Yang; Benjamin Agyei-Tuffour; Rowan W. MacQueen; Boris Naydenov; Thomas Unold; Eva Unger; Ece Aktas; Siegfried Eigler; Antonio Abate

doi:10.1002/anie.202307395

Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells

Guixiang Li
, Yalei Hu
, Meng Li
, Ying Tang
, Zuhong Zhang
, Artem Musiienko
, Qing Cao
, Fatima Akhundova
, Jinzhao Li
, Karunanantharajah Prashanthan
, Fengjiu Yang
, Patryk Janasik
, Augustine N.S. Appiah
, Sergei Trofimov
, Nikolaos Livakas
, Shengnan Zuo
, Luyan Wu
, Luyao Wang
, Yuqian Yang
, Benjamin Agyei-Tuffour

Rowan W. MacQueen, Boris Naydenov, Thomas Unold, Eva Unger, Ece Aktas, Siegfried Eigler, Antonio Abate

Department of Materials Science And Engineering

Henan University
Helmholtz Centre Berlin for Materials and Energy
Bielefeld University
École Polytechnique Fédérale de Lausanne (EPFL)
Free University of Berlin
University of Strasbourg
University of Jaffna
Silesian University of Technology
Italian Institute of Technology
University of Genoa
University of Cagliari
Federico II University

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

28 Citations (Scopus)

Abstract

Stability issues could prevent lead halide perovskite solar cells (PSCs) from commercialization despite it having a comparable power conversion efficiency (PCE) to silicon solar cells. Overcoming drawbacks affecting their long-term stability is gaining incremental importance. Excess lead iodide (PbI₂) causes perovskite degradation, although it aids in crystal growth and defect passivation. Herein, we synthesized functionalized oxo-graphene nanosheets (Dec-oxoG NSs) to effectively manage the excess PbI₂. Dec-oxoG NSs provide anchoring sites to bind the excess PbI₂ and passivate perovskite grain boundaries, thereby reducing charge recombination loss and significantly boosting the extraction of free electrons. The inclusion of Dec-oxoG NSs leads to a PCE of 23.7 % in inverted (p-i-n) PSCs. The devices retain 93.8 % of their initial efficiency after 1,000 hours of tracking at maximum power points under continuous one-sun illumination and exhibit high stability under thermal and ambient conditions.

Original language	English
Article number	e202307395
Journal	Angewandte Chemie - International Edition
Volume	62
Issue number	39
DOIs	https://doi.org/10.1002/anie.202307395
Publication status	Published - 25 Sep 2023

UN SDGs

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

SDG 3 Good Health and Well-being

Keywords

Excess Lead Iodide
Operational Stability
Oxo-Graphene Nanosheets
Perovskite Photovoltaics
Solar Cells

Access to Document

10.1002/anie.202307395

Cite this

Li, G., Hu, Y., Li, M., Tang, Y., Zhang, Z., Musiienko, A., Cao, Q., Akhundova, F., Li, J., Prashanthan, K., Yang, F., Janasik, P., Appiah, A. N. S., Trofimov, S., Livakas, N., Zuo, S., Wu, L., Wang, L., Yang, Y., ... Abate, A. (2023). Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells. Angewandte Chemie - International Edition, 62(39), Article e202307395. https://doi.org/10.1002/anie.202307395

@article{40b4bd0db38442dda50ee9dc388e3896,

title = "Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells",

abstract = "Stability issues could prevent lead halide perovskite solar cells (PSCs) from commercialization despite it having a comparable power conversion efficiency (PCE) to silicon solar cells. Overcoming drawbacks affecting their long-term stability is gaining incremental importance. Excess lead iodide (PbI2) causes perovskite degradation, although it aids in crystal growth and defect passivation. Herein, we synthesized functionalized oxo-graphene nanosheets (Dec-oxoG NSs) to effectively manage the excess PbI2. Dec-oxoG NSs provide anchoring sites to bind the excess PbI2 and passivate perovskite grain boundaries, thereby reducing charge recombination loss and significantly boosting the extraction of free electrons. The inclusion of Dec-oxoG NSs leads to a PCE of 23.7 \% in inverted (p-i-n) PSCs. The devices retain 93.8 \% of their initial efficiency after 1,000 hours of tracking at maximum power points under continuous one-sun illumination and exhibit high stability under thermal and ambient conditions.",

keywords = "Excess Lead Iodide, Operational Stability, Oxo-Graphene Nanosheets, Perovskite Photovoltaics, Solar Cells",

author = "Guixiang Li and Yalei Hu and Meng Li and Ying Tang and Zuhong Zhang and Artem Musiienko and Qing Cao and Fatima Akhundova and Jinzhao Li and Karunanantharajah Prashanthan and Fengjiu Yang and Patryk Janasik and Appiah, \{Augustine N.S.\} and Sergei Trofimov and Nikolaos Livakas and Shengnan Zuo and Luyan Wu and Luyao Wang and Yuqian Yang and Benjamin Agyei-Tuffour and MacQueen, \{Rowan W.\} and Boris Naydenov and Thomas Unold and Eva Unger and Ece Aktas and Siegfried Eigler and Antonio Abate",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.",

year = "2023",

month = sep,

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doi = "10.1002/anie.202307395",

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Li, G, Hu, Y, Li, M, Tang, Y, Zhang, Z, Musiienko, A, Cao, Q, Akhundova, F, Li, J, Prashanthan, K, Yang, F, Janasik, P, Appiah, ANS, Trofimov, S, Livakas, N, Zuo, S, Wu, L, Wang, L, Yang, Y, Agyei-Tuffour, B, MacQueen, RW, Naydenov, B, Unold, T, Unger, E, Aktas, E, Eigler, S & Abate, A 2023, 'Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells', Angewandte Chemie - International Edition, vol. 62, no. 39, e202307395. https://doi.org/10.1002/anie.202307395

TY - JOUR

T1 - Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells

AU - Li, Guixiang

AU - Hu, Yalei

AU - Li, Meng

AU - Tang, Ying

AU - Zhang, Zuhong

AU - Musiienko, Artem

AU - Cao, Qing

AU - Akhundova, Fatima

AU - Li, Jinzhao

AU - Prashanthan, Karunanantharajah

AU - Yang, Fengjiu

AU - Janasik, Patryk

AU - Appiah, Augustine N.S.

AU - Trofimov, Sergei

AU - Livakas, Nikolaos

AU - Zuo, Shengnan

AU - Wu, Luyan

AU - Wang, Luyao

AU - Yang, Yuqian

AU - Agyei-Tuffour, Benjamin

AU - MacQueen, Rowan W.

AU - Naydenov, Boris

AU - Unold, Thomas

AU - Unger, Eva

AU - Aktas, Ece

AU - Eigler, Siegfried

AU - Abate, Antonio

PY - 2023/9/25

Y1 - 2023/9/25

N2 - Stability issues could prevent lead halide perovskite solar cells (PSCs) from commercialization despite it having a comparable power conversion efficiency (PCE) to silicon solar cells. Overcoming drawbacks affecting their long-term stability is gaining incremental importance. Excess lead iodide (PbI2) causes perovskite degradation, although it aids in crystal growth and defect passivation. Herein, we synthesized functionalized oxo-graphene nanosheets (Dec-oxoG NSs) to effectively manage the excess PbI2. Dec-oxoG NSs provide anchoring sites to bind the excess PbI2 and passivate perovskite grain boundaries, thereby reducing charge recombination loss and significantly boosting the extraction of free electrons. The inclusion of Dec-oxoG NSs leads to a PCE of 23.7 % in inverted (p-i-n) PSCs. The devices retain 93.8 % of their initial efficiency after 1,000 hours of tracking at maximum power points under continuous one-sun illumination and exhibit high stability under thermal and ambient conditions.

AB - Stability issues could prevent lead halide perovskite solar cells (PSCs) from commercialization despite it having a comparable power conversion efficiency (PCE) to silicon solar cells. Overcoming drawbacks affecting their long-term stability is gaining incremental importance. Excess lead iodide (PbI2) causes perovskite degradation, although it aids in crystal growth and defect passivation. Herein, we synthesized functionalized oxo-graphene nanosheets (Dec-oxoG NSs) to effectively manage the excess PbI2. Dec-oxoG NSs provide anchoring sites to bind the excess PbI2 and passivate perovskite grain boundaries, thereby reducing charge recombination loss and significantly boosting the extraction of free electrons. The inclusion of Dec-oxoG NSs leads to a PCE of 23.7 % in inverted (p-i-n) PSCs. The devices retain 93.8 % of their initial efficiency after 1,000 hours of tracking at maximum power points under continuous one-sun illumination and exhibit high stability under thermal and ambient conditions.

KW - Excess Lead Iodide

KW - Operational Stability

KW - Oxo-Graphene Nanosheets

KW - Perovskite Photovoltaics

KW - Solar Cells

UR - https://www.scopus.com/pages/publications/85168356183

U2 - 10.1002/anie.202307395

DO - 10.1002/anie.202307395

M3 - Article

C2 - 37522562

AN - SCOPUS:85168356183

SN - 1433-7851

VL - 62

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 39

M1 - e202307395

ER -

Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells

Abstract

UN SDGs

Keywords

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