Unnatural Hygroscopic Property of Nicotinic Acid by Restructuring Molecular Density: Self-Healing Halide Perovskites

Do Hyung Chun; Yunseop Shin; Eun Ho Kim; Yung Ji Choi; Ryan Rhee; Donghwa Lee; Dongho Kim; Jong Hyeok Park

doi:10.1021/acs.jpclett.1c02318

Unnatural Hygroscopic Property of Nicotinic Acid by Restructuring Molecular Density: Self-Healing Halide Perovskites

Do Hyung Chun, Yunseop Shin, Eun Ho Kim, Yung Ji Choi, Ryan Rhee, Donghwa Lee, Dongho Kim, Jong Hyeok Park

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

2 Citations (Scopus)

Abstract

An unnatural hygroscopic property of nonhygroscopic nicotinic acid (NA) is demonstrated by tuning the intermolecular distance. After addition of NA into methylammonium lead iodide, (MAPbI₃) NA molecules are preferentially aligned on the interface of the three-dimensional (3D) MAPbI₃crystal structure by a hydrogen bond. This unique behavior allows NA to be used as a versatile additive to improve the water durability of MAPbI₃. After exposure under a high humidity atmosphere (RH 100%, 35 °C), MAPbI₃films with NA exhibited self-healing phenomena against moisture while bare MAPbI₃rapidly lost its own intrinsic property. Density functional theory (DFT) calculations were conducted to reveal how H₂O molecules can effectively be absorbed by NA according to its planar molecular density. Also, further optimization of photovoltaic device performances was carried out by investigating the relationship between NA concentration and additive alignment.

Original language	English
Pages (from-to)	8932-8938
Number of pages	7
Journal	Journal of Physical Chemistry Letters
Volume	12
Issue number	37
DOIs	https://doi.org/10.1021/acs.jpclett.1c02318
Publication status	Published - 2021 Sept 23

Bibliographical note

Funding Information:
D.H.C. and Y.S. contributed equally to this work. J.H.P. acknowledges the support from the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2018M1A3A3A02065974, 2019R1A2C3010479, 2021M3E6A1015823). D. H. C. was supported by National Research Foundation of Korea (NRF) Grant funded by the Korean Government (NRF-2018-Global Ph.D. Fellowship Program, 2018H1A2A1063511).

Publisher Copyright:
© 2021 American Chemical Society

All Science Journal Classification (ASJC) codes

Materials Science(all)
Physical and Theoretical Chemistry

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

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10.1021/acs.jpclett.1c02318

Cite this

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title = "Unnatural Hygroscopic Property of Nicotinic Acid by Restructuring Molecular Density: Self-Healing Halide Perovskites",

abstract = "An unnatural hygroscopic property of nonhygroscopic nicotinic acid (NA) is demonstrated by tuning the intermolecular distance. After addition of NA into methylammonium lead iodide, (MAPbI3) NA molecules are preferentially aligned on the interface of the three-dimensional (3D) MAPbI3crystal structure by a hydrogen bond. This unique behavior allows NA to be used as a versatile additive to improve the water durability of MAPbI3. After exposure under a high humidity atmosphere (RH 100%, 35 °C), MAPbI3films with NA exhibited self-healing phenomena against moisture while bare MAPbI3rapidly lost its own intrinsic property. Density functional theory (DFT) calculations were conducted to reveal how H2O molecules can effectively be absorbed by NA according to its planar molecular density. Also, further optimization of photovoltaic device performances was carried out by investigating the relationship between NA concentration and additive alignment.",

author = "Chun, {Do Hyung} and Yunseop Shin and Kim, {Eun Ho} and Choi, {Yung Ji} and Ryan Rhee and Donghwa Lee and Dongho Kim and Park, {Jong Hyeok}",

note = "Funding Information: D.H.C. and Y.S. contributed equally to this work. J.H.P. acknowledges the support from the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2018M1A3A3A02065974, 2019R1A2C3010479, 2021M3E6A1015823). D. H. C. was supported by National Research Foundation of Korea (NRF) Grant funded by the Korean Government (NRF-2018-Global Ph.D. Fellowship Program, 2018H1A2A1063511). Publisher Copyright: {\textcopyright} 2021 American Chemical Society",

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AU - Lee, Donghwa

AU - Kim, Dongho

AU - Park, Jong Hyeok

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PY - 2021/9/23

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N2 - An unnatural hygroscopic property of nonhygroscopic nicotinic acid (NA) is demonstrated by tuning the intermolecular distance. After addition of NA into methylammonium lead iodide, (MAPbI3) NA molecules are preferentially aligned on the interface of the three-dimensional (3D) MAPbI3crystal structure by a hydrogen bond. This unique behavior allows NA to be used as a versatile additive to improve the water durability of MAPbI3. After exposure under a high humidity atmosphere (RH 100%, 35 °C), MAPbI3films with NA exhibited self-healing phenomena against moisture while bare MAPbI3rapidly lost its own intrinsic property. Density functional theory (DFT) calculations were conducted to reveal how H2O molecules can effectively be absorbed by NA according to its planar molecular density. Also, further optimization of photovoltaic device performances was carried out by investigating the relationship between NA concentration and additive alignment.

AB - An unnatural hygroscopic property of nonhygroscopic nicotinic acid (NA) is demonstrated by tuning the intermolecular distance. After addition of NA into methylammonium lead iodide, (MAPbI3) NA molecules are preferentially aligned on the interface of the three-dimensional (3D) MAPbI3crystal structure by a hydrogen bond. This unique behavior allows NA to be used as a versatile additive to improve the water durability of MAPbI3. After exposure under a high humidity atmosphere (RH 100%, 35 °C), MAPbI3films with NA exhibited self-healing phenomena against moisture while bare MAPbI3rapidly lost its own intrinsic property. Density functional theory (DFT) calculations were conducted to reveal how H2O molecules can effectively be absorbed by NA according to its planar molecular density. Also, further optimization of photovoltaic device performances was carried out by investigating the relationship between NA concentration and additive alignment.

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Unnatural Hygroscopic Property of Nicotinic Acid by Restructuring Molecular Density: Self-Healing Halide Perovskites

Abstract

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