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Thermal unequilibrium of strained black CsPbI3 thin films.

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Title: Thermal unequilibrium of strained black CsPbI3 thin films.
Authors: Steele, Julian A., Handong Jin, Dovgaliuk, Iurii, Berger, Robert F., Braeckevelt, Tom, Haifeng Yuan, Martin, Cristina, Solano, Eduardo, Lejaeghere, Kurt, Rogge, Sven M. J., Notebaert, Charlotte, Vandezande, Wouter, Janssen, Kris P. F., Goderis, Bart, Debroye, Elke, Ya-Kun Wang, Yitong Dong, Dongxin Ma, Makhsud Saidaminov, Hairen Tan
Source: Science (pre-March 2025). 8/16/2019, Vol. 365 Issue 6454, p679-684. 6p. 4 Color Photographs.
Subjects: Halides, Solar cells, Scanning electron microscopy, Perovskite, Orthorhombic crystal system
Abstract: The high-temperature, all-inorganic CsPbI3 perovskite black phase is metastable relative to its yellow, nonperovskite phase at room temperature. Because only the black phase is optically active, this represents an impediment for the use of CsPbI3 in optoelectronic devices. We report the use of substrate clamping and biaxial strain to render black-phase CsPbI3 thin films stable at room temperature. We used synchrotron-based, grazing incidence, wide-angle x-ray scattering to track the introduction of crystal distortions and strain-driven texture formation within black CsPbI3 thin films when they were cooled after annealing at 330°C. The thermal stability of black CsPbI3 thin films is vastly improved by the strained interface, a response verified by ab initio thermodynamic modeling. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Thermal unequilibrium of strained black CsPbI<subscript>3</subscript> thin films.
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  Data: <searchLink fieldCode="AR" term="%22Steele%2C+Julian+A%2E%22">Steele, Julian A.</searchLink><br /><searchLink fieldCode="AR" term="%22Handong+Jin%22">Handong Jin</searchLink><br /><searchLink fieldCode="AR" term="%22Dovgaliuk%2C+Iurii%22">Dovgaliuk, Iurii</searchLink><br /><searchLink fieldCode="AR" term="%22Berger%2C+Robert+F%2E%22">Berger, Robert F.</searchLink><br /><searchLink fieldCode="AR" term="%22Braeckevelt%2C+Tom%22">Braeckevelt, Tom</searchLink><br /><searchLink fieldCode="AR" term="%22Haifeng+Yuan%22">Haifeng Yuan</searchLink><br /><searchLink fieldCode="AR" term="%22Martin%2C+Cristina%22">Martin, Cristina</searchLink><br /><searchLink fieldCode="AR" term="%22Solano%2C+Eduardo%22">Solano, Eduardo</searchLink><br /><searchLink fieldCode="AR" term="%22Lejaeghere%2C+Kurt%22">Lejaeghere, Kurt</searchLink><br /><searchLink fieldCode="AR" term="%22Rogge%2C+Sven+M%2E+J%2E%22">Rogge, Sven M. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Notebaert%2C+Charlotte%22">Notebaert, Charlotte</searchLink><br /><searchLink fieldCode="AR" term="%22Vandezande%2C+Wouter%22">Vandezande, Wouter</searchLink><br /><searchLink fieldCode="AR" term="%22Janssen%2C+Kris+P%2E+F%2E%22">Janssen, Kris P. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Goderis%2C+Bart%22">Goderis, Bart</searchLink><br /><searchLink fieldCode="AR" term="%22Debroye%2C+Elke%22">Debroye, Elke</searchLink><br /><searchLink fieldCode="AR" term="%22Ya-Kun+Wang%22">Ya-Kun Wang</searchLink><br /><searchLink fieldCode="AR" term="%22Yitong+Dong%22">Yitong Dong</searchLink><br /><searchLink fieldCode="AR" term="%22Dongxin+Ma%22">Dongxin Ma</searchLink><br /><searchLink fieldCode="AR" term="%22Makhsud+Saidaminov%22">Makhsud Saidaminov</searchLink><br /><searchLink fieldCode="AR" term="%22Hairen+Tan%22">Hairen Tan</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 8/16/2019, Vol. 365 Issue 6454, p679-684. 6p. 4 Color Photographs.
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  Data: <searchLink fieldCode="DE" term="%22Halides%22">Halides</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+cells%22">Solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Perovskite%22">Perovskite</searchLink><br /><searchLink fieldCode="DE" term="%22Orthorhombic+crystal+system%22">Orthorhombic crystal system</searchLink>
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  Data: The high-temperature, all-inorganic CsPbI3 perovskite black phase is metastable relative to its yellow, nonperovskite phase at room temperature. Because only the black phase is optically active, this represents an impediment for the use of CsPbI3 in optoelectronic devices. We report the use of substrate clamping and biaxial strain to render black-phase CsPbI3 thin films stable at room temperature. We used synchrotron-based, grazing incidence, wide-angle x-ray scattering to track the introduction of crystal distortions and strain-driven texture formation within black CsPbI3 thin films when they were cooled after annealing at 330°C. The thermal stability of black CsPbI3 thin films is vastly improved by the strained interface, a response verified by ab initio thermodynamic modeling. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=138090111
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        Value: 10.1126/science.aax3878
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        Text: English
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        Type: general
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      – SubjectFull: Scanning electron microscopy
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      – SubjectFull: Orthorhombic crystal system
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