Enhanced optoelectronic quality of perovskite thin films with hypophosphorous acid for planar heterojunction solar cells

Zhang, Wei; Pathak, Sandeep; Sakai, Nobuya; Stergiopoulos, Thomas; Nayak, Pabitra K.; Noel, Nakita K.; Haghighirad, Amir A.; Burlakov, Victor M.; deQuilettes, Dane W.; Sadhanala, Aditya; Li, Wenzhe; Wang, Liduo; Ginger, David S.; Friend, Richard H.; Snaith, Henry J.

doi:10.1038/ncomms10030

Title: Enhanced optoelectronic quality of perovskite thin films with hypophosphorous acid for planar heterojunction solar cells

Journal Article · Mon Nov 30 00:00:00 EST 2015 · Nature Communications

DOI:https://doi.org/10.1038/ncomms10030· OSTI ID:1239810

Zhang, Wei ^[1]; Pathak, Sandeep ^[1]; Sakai, Nobuya ^[1]; Stergiopoulos, Thomas ^[1]; Nayak, Pabitra K. ^[1]; Noel, Nakita K. ^[1]; Haghighirad, Amir A. ^[1]; Burlakov, Victor M. ^[1]; deQuilettes, Dane W. ^[2]; Sadhanala, Aditya ^[3]; Li, Wenzhe ^[4]; Wang, Liduo ^[4]; Ginger, David S. ^[2]; Friend, Richard H. ^[3]; Snaith, Henry J. ^[1]

Univ. of Oxford (United Kingdom)
Univ. of Washington, Seattle, WA (United States)
Univ. of Cambridge (United Kingdom)
Tsinghua Univ., Beijing (China)

Solution-processed metal halide perovskite semiconductors, such as CH₃NH₃PbI₃, have exhibited remarkable performance in solar cells, despite having non-negligible density of defect states. A likely candidate is halide vacancies within the perovskite crystals, or the presence of metallic lead, both generated due to the imbalanced I/Pb stoichiometry which could evolve during crystallization. Herein, we show that the addition of hypophosphorous acid (HPA) in the precursor solution can significantly improve the film quality, both electronically and topologically, and enhance the photoluminescence intensity, which leads to more efficient and reproducible photovoltaic devices. We demonstrate that the HPA can reduce the oxidized I2 back into I-, and our results indicate that this facilitates an improved stoichiometry in the perovskite crystal and a reduced density of metallic lead.

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Research Organization:: Univ. of Oxford (United Kingdom). Dept. of Physics

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0013957

OSTI ID:: 1239810

Journal Information:: Nature Communications, Vol. 6; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 534 works

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Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylamine Duim, Herman; Fang, Hong-Hua; Adjokatse, Sampson Applied Physics Reviews, Vol. 6, Issue 3 https://doi.org/10.1063/1.5088342	journal	September 2019
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A Eu ³⁺ -Eu ²⁺ ion redox shuttle imparts operational durability to Pb-I perovskite solar cells Wang, Ligang; Zhou, Huanping; Hu, Junnan Science, Vol. 363, Issue 6424 https://doi.org/10.1126/science.aau5701	journal	January 2019
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Grain-Boundary “Patches” by In Situ Conversion to Enhance Perovskite Solar Cells Stability Liu, Lang; Huang, Sheng; Lu, Yue Advanced Materials, Vol. 30, Issue 29 https://doi.org/10.1002/adma.201800544	journal	June 2018
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Elucidating the Role of a Tetrafluoroborate‐Based Ionic Liquid at the n‐Type Oxide/Perovskite Interface Noel, Nakita K.; Habisreutinger, Severin N.; Wenger, Bernard Advanced Energy Materials, Vol. 10, Issue 4 https://doi.org/10.1002/aenm.201903231	journal	December 2019
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How Methylammonium Cations and Chlorine Dopants Heal Defects in Lead Iodide Perovskites Nan, Guangjun; Zhang, Xu; Abdi-Jalebi, Mojtaba Advanced Energy Materials, Vol. 8, Issue 13 https://doi.org/10.1002/aenm.201702754	journal	January 2018
Luminescent manganese-doped CsPbCl3 perovskite quantum dots Lin, Chun Che; Xu, Kun Yuan; Wang, Da Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/srep45906	journal	April 2017
The electronic structure and band interface of cesium bismuth iodide on a titania heterostructure using hard X-ray spectroscopy Phuyal, Dibya; Jain, Sagar M.; Philippe, Bertrand Journal of Materials Chemistry A, Vol. 6, Issue 20 https://doi.org/10.1039/c8ta00947c	journal	January 2018
Imperfections and their passivation in halide perovskite solar cells J., Huang,; B., Chen,; P. N., Rudd, The University of North Carolina at Chapel Hill University Libraries https://doi.org/10.17615/kzq8-3k31	text	January 2019
High Quality Hybrid Perovskite Semiconductor Thin Films with Remarkably Enhanced Luminescence and Defect Suppression via Quaternary Alkyl Ammonium Salt Based Treatment Naphade, R.; Zhao, Baodan; Richter, Jm Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.12198	text	January 2017
Photo-induced halide redistribution in organic-inorganic perovskite films. DeQuilettes, Dane W.; Zhang, Wei; Burlakov, Victor M. Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.12475	text	January 2016
Probing buried recombination pathways in perovskite structures using 3D photoluminescence tomography. Stavrakas, Camille; Zhumekenov, Ayan A.; Brenes, Roberto Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.27903	text	January 2018
Elucidating the Long-range Charge Carrier Mobility in Metal Halide Perovskite Thin Films Lim, Jongchul; Wenger, Bernard; Snaith, Henry Proceedings of the 11th International Conference on Hybrid and Organic Photovoltaics https://doi.org/10.29363/nanoge.hopv.2019.087	conference	February 2019
Flexible Wire-Shaped Perovskite Photodetector via Joule Heating for Improved Crystallization and Performance Adams, Geoffrey Ryan; Adhikari, Nirmal; Parker, Helen Advanced Materials Interfaces, Vol. 5, Issue 15 https://doi.org/10.1002/admi.201800082	journal	May 2018
Reducing Detrimental Defects for High‐Performance Metal Halide Perovskite Solar Cells Ono, Luis K.; Liu, Shengzhong (Frank); Qi, Yabing Angewandte Chemie International Edition, Vol. 59, Issue 17 https://doi.org/10.1002/anie.201905521	journal	January 2020
Crystallization kinetics and morphology control of formamidinium-cesium mixed-cation lead mixed-halide perovskite via tunability of the colloidal precursor solution McMeekin, David; Wang, Zhiping; Rehman, Waqaas Proceedings of the 2nd Asia-Pacific Hybrid and Organic Photovoltaics https://doi.org/10.29363/nanoge.ap-hopv.2018.037	conference	January 2018
High Open-Circuit Voltages in Tin-Rich Low-Bandgap Perovskite-Based Planar Heterojunction Photovoltaics Zhao, Baodan; Abdi-Jalebi, Mojtaba; Tabachnyk, Maxim Advanced Materials, Vol. 29, Issue 2 https://doi.org/10.1002/adma.201604744	journal	November 2016
Tailoring metal halide perovskites through metal substitution: Influence on photovoltaic and material properties Klug, Mt; Osherov, A.; Haghighirad, Aa Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.77395	text	January 2017
Elucidating the long-range charge carrier mobility in metal halide perovskite thin films Lim, Jongchul; Hoerantner, Maximilian T.; Sakai, Nobuya arXiv https://doi.org/10.48550/arxiv.1812.06322	text	January 2018
Effect of Precursor Stoichiometry on the Performance and Stability of MAPbBr3 Photovoltaic Devices Falk, Lukas M.; Goetz, Katelyn P.; Lami, Vincent arXiv https://doi.org/10.48550/arxiv.2007.14647	text	January 2020
Impurity Tracking Enables Enhanced Control and Reproducibility of Hybrid Perovskite Vapor Deposition Borchert, Juliane; Levchuk, Ievgen; Snoek, Lavina C. ACS Applied Materials & Interfaces, Vol. 11, Issue 32 https://doi.org/10.1021/acsami.9b07619	journal	July 2019
Solvent-Antisolvent Ambient Processed Large Grain Size Perovskite Thin Films for High-Performance Solar Cells Gedamu, Dawit; Asuo, Ivy M.; Benetti, Daniele Scientific Reports, Vol. 8, Issue 1 https://doi.org/10.1038/s41598-018-31184-0	journal	August 2018
Facile and noninvasive passivation, doping and chemical tuning of macroscopic hybrid perovskite crystals Kirmani, Ahmad R.; Mansour, Ahmed E.; Yang, Chen PLOS ONE, Vol. 15, Issue 3 https://doi.org/10.1371/journal.pone.0230540	journal	March 2020

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