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New phase transition in CsPbBr3.

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Title: New phase transition in CsPbBr3.
Authors: Malyshkin, Dmitry1 (AUTHOR) Dmitry.Malyshkin@urfu.ru, Sereda, Vladimir1 (AUTHOR), Ivanov, Ivan1 (AUTHOR), Mazurin, Maksim1 (AUTHOR), Sednev-Lugovets, Anton1 (AUTHOR), Tsvetkov, Dmitry1 (AUTHOR), Zuev, Andrey1 (AUTHOR)
Source: Materials Letters. Nov2020, Vol. 278, pN.PAG-N.PAG. 1p.
Subjects: Phase transitions, Reversible phase transitions, Differential scanning calorimetry, Cesium, Space groups
Abstract: • Fully reversible phase transition was found in CsPbBr 3 between 45 °C and 57 °C. • New CsPbBr 3 phase is stable at least in the temperature range (57–62) °C. • Novel CsPbBr 3 phase possesses orthorhombic (Cmcm) crystal structure. Using a combination of in situ high-temperature X-ray diffraction and differential scanning calorimetry methods, the phase behavior of cesium lead bromide CsPbBr 3 was investigated in the temperature range of (25–200) °C. In addition to the previously reported P n m a → P 4 / m b m and P 4 / m b m → P m 3 - m phase transitions, a new fully reversible transition was found to occur between 45 °C and 57 °C. A novel phase, which is stable at least in the temperature range of (57–62) °C, has an orthorhombic structure with Cmcm space group, which makes the sequence of phase transitions upon heating the same for both CsPbBr 3 and CsPbCl 3 halides: P n m a → C m c m → P 4 / m b m → P m 3 - m. [ABSTRACT FROM AUTHOR]
Copyright of Materials Letters is the property of Elsevier B.V. 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.)
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DbLabel: Engineering Source
An: 145651236
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  Data: New phase transition in CsPbBr3.
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  Data: • Fully reversible phase transition was found in CsPbBr 3 between 45 °C and 57 °C. • New CsPbBr 3 phase is stable at least in the temperature range (57–62) °C. • Novel CsPbBr 3 phase possesses orthorhombic (Cmcm) crystal structure. Using a combination of in situ high-temperature X-ray diffraction and differential scanning calorimetry methods, the phase behavior of cesium lead bromide CsPbBr 3 was investigated in the temperature range of (25–200) °C. In addition to the previously reported P n m a → P 4 / m b m and P 4 / m b m → P m 3 - m phase transitions, a new fully reversible transition was found to occur between 45 °C and 57 °C. A novel phase, which is stable at least in the temperature range of (57–62) °C, has an orthorhombic structure with Cmcm space group, which makes the sequence of phase transitions upon heating the same for both CsPbBr 3 and CsPbCl 3 halides: P n m a → C m c m → P 4 / m b m → P m 3 - m. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Materials Letters is the property of Elsevier B.V. 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.)
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RecordInfo BibRecord:
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        Value: 10.1016/j.matlet.2020.128458
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        Text: English
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      – SubjectFull: Phase transitions
        Type: general
      – SubjectFull: Reversible phase transitions
        Type: general
      – SubjectFull: Differential scanning calorimetry
        Type: general
      – SubjectFull: Cesium
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      – SubjectFull: Space groups
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      – TitleFull: New phase transition in CsPbBr3.
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              M: 11
              Text: Nov2020
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              Y: 2020
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