Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices

Growing a monocrystalline layer of lead halide perovskites directly over substrates is necessary to completely harness their stellar properties in optoelectronic devices, as the single crystals of these materials are extremely brittle. We study the crystallization mechanism of perovskites by antisol...

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Main Authors: Ahmad, Riyas, Surendran, Abhijith, Harikesh, Padinhare Cholakkal, Haselsberger, Reinhard, Nur Fadilah Jamaludin, John, Rohit Abraham, Koh, Teck Ming, Bruno, Annalisa, Leong, Wei Lin, Mathews, Nripan, Michel-Beyerle, Maria-Elisabeth, Mhaisalkar, Subodh Gautam
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/142577
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1425772021-01-08T02:24:56Z Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices Ahmad, Riyas Surendran, Abhijith Harikesh, Padinhare Cholakkal Haselsberger, Reinhard Nur Fadilah Jamaludin John, Rohit Abraham Koh, Teck Ming Bruno, Annalisa Leong, Wei Lin Mathews, Nripan Michel-Beyerle, Maria-Elisabeth Mhaisalkar, Subodh Gautam School of Chemical and Biomedical Engineering School of Materials Science and Engineering School of Physical and Mathematical Sciences Interdisciplinary Graduate School (IGS) Energy Research Institute @ NTU (ERI@N) Engineering::Materials Lead Halide Perovskites Crystal Growth Growing a monocrystalline layer of lead halide perovskites directly over substrates is necessary to completely harness their stellar properties in optoelectronic devices, as the single crystals of these materials are extremely brittle. We study the crystallization mechanism of perovskites by antisolvent vapor diffusion to its precursor solution and find that heterogeneous nucleation prevails in the process, with the crystallization dish walls providing the energy to overcome the nucleation barrier. By perturbing the system using sonication, we are able to introduce homogeneously nucleated seed crystals in the precursor solution. These seeds lead to the growth of closely packed crystals over surface-modified substrates kept in the precursor solution. This crystallization process is substrate independent and scalable and can be utilized to fabricate planar optoelectronic devices. We demonstrate a methylammonium lead iodide planar crystal photoconductor with a colossal detectivity of 1.48 × 1013 Jones. NRF (Natl Research Foundation, S’pore) Accepted version 2020-06-24T10:46:26Z 2020-06-24T10:46:26Z 2019 Journal Article Ahmad, R., Surendran, A., Harikesh, P. C., Haselsberger, R., Nur Fadilah Jamaludin, John, R. A., . . . Mhaisalkar, S. G. (2019). Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices. ACS Applied Materials & Interfaces, 11(31), 27727-27734. doi:10.1021/acsami.9b05965 1944-8244 https://hdl.handle.net/10356/142577 10.1021/acsami.9b05965 31 11 27727 27734 en NRF-CRP14-2014-03 ONRG-NICOP-N62909-17-1-2155 ACS Applied Materials & Interfaces This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.9b05965 application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
Lead Halide Perovskites
Crystal Growth
spellingShingle Engineering::Materials
Lead Halide Perovskites
Crystal Growth
Ahmad, Riyas
Surendran, Abhijith
Harikesh, Padinhare Cholakkal
Haselsberger, Reinhard
Nur Fadilah Jamaludin
John, Rohit Abraham
Koh, Teck Ming
Bruno, Annalisa
Leong, Wei Lin
Mathews, Nripan
Michel-Beyerle, Maria-Elisabeth
Mhaisalkar, Subodh Gautam
Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
description Growing a monocrystalline layer of lead halide perovskites directly over substrates is necessary to completely harness their stellar properties in optoelectronic devices, as the single crystals of these materials are extremely brittle. We study the crystallization mechanism of perovskites by antisolvent vapor diffusion to its precursor solution and find that heterogeneous nucleation prevails in the process, with the crystallization dish walls providing the energy to overcome the nucleation barrier. By perturbing the system using sonication, we are able to introduce homogeneously nucleated seed crystals in the precursor solution. These seeds lead to the growth of closely packed crystals over surface-modified substrates kept in the precursor solution. This crystallization process is substrate independent and scalable and can be utilized to fabricate planar optoelectronic devices. We demonstrate a methylammonium lead iodide planar crystal photoconductor with a colossal detectivity of 1.48 × 1013 Jones.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Ahmad, Riyas
Surendran, Abhijith
Harikesh, Padinhare Cholakkal
Haselsberger, Reinhard
Nur Fadilah Jamaludin
John, Rohit Abraham
Koh, Teck Ming
Bruno, Annalisa
Leong, Wei Lin
Mathews, Nripan
Michel-Beyerle, Maria-Elisabeth
Mhaisalkar, Subodh Gautam
format Article
author Ahmad, Riyas
Surendran, Abhijith
Harikesh, Padinhare Cholakkal
Haselsberger, Reinhard
Nur Fadilah Jamaludin
John, Rohit Abraham
Koh, Teck Ming
Bruno, Annalisa
Leong, Wei Lin
Mathews, Nripan
Michel-Beyerle, Maria-Elisabeth
Mhaisalkar, Subodh Gautam
author_sort Ahmad, Riyas
title Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
title_short Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
title_full Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
title_fullStr Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
title_full_unstemmed Perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
title_sort perturbation-induced seeding and crystallization of hybrid perovskites over surface-modified substrates for optoelectronic devices
publishDate 2020
url https://hdl.handle.net/10356/142577
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