Temperature Driven Phase Transition of Organic-Inorganic Halide Perovskite Single Crystals

Hye Ryung Byun; Hyo In Kim; Su Jeong Byun; Dae Young Park; Mun Seok Jeong; Clare Chisu Byeon

doi:10.3938/jkps.73.1729

Temperature Driven Phase Transition of Organic-Inorganic Halide Perovskite Single Crystals

Hye Ryung Byun, Hyo In Kim, Su Jeong Byun, Dae Young Park, Mun Seok Jeong, Clare Chisu Byeon

School of Mechanical Engineering

Sungkyunkwan University

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

1 Scopus citations

Abstract

Organic-inorganic halide perovskite single crystals undergo phase transition of being cubic, tetragonal, or orthorhombic depending on the temperature. We investigated the CH₃NH₃PbBr_3−xI_x single crystals grown by the inverse temperature crystallization method with temperature-dependent UV-Vis absorption and photoluminescence. From the temperature-dependent absorption measurement, the optical band gap is extracted by derivation of absorption spectrum fitting and Tauc plot. In our results, CH₃NH₃PbBr_3−xI_x single crystals show that an abrupt change in optical band gap, PL peak position and intensity appears around 120 K - 170 K regions, indicating the phase transition temperature.

Original language	English
Pages (from-to)	1729-1734
Number of pages	6
Journal	Journal of the Korean Physical Society
Volume	73
Issue number	11
DOIs	https://doi.org/10.3938/jkps.73.1729
State	Published - 1 Dec 2018

Keywords

Derivation of absorption spectrum fitting (DASF)
Perovskite single crystal
Phase transition
Photoluminescence
Temperature-dependent absorption

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10.3938/jkps.73.1729

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title = "Temperature Driven Phase Transition of Organic-Inorganic Halide Perovskite Single Crystals",

abstract = "Organic-inorganic halide perovskite single crystals undergo phase transition of being cubic, tetragonal, or orthorhombic depending on the temperature. We investigated the CH3NH3PbBr3−xIx single crystals grown by the inverse temperature crystallization method with temperature-dependent UV-Vis absorption and photoluminescence. From the temperature-dependent absorption measurement, the optical band gap is extracted by derivation of absorption spectrum fitting and Tauc plot. In our results, CH3NH3PbBr3−xIx single crystals show that an abrupt change in optical band gap, PL peak position and intensity appears around 120 K - 170 K regions, indicating the phase transition temperature.",

keywords = "Derivation of absorption spectrum fitting (DASF), Perovskite single crystal, Phase transition, Photoluminescence, Temperature-dependent absorption",

author = "Byun, \{Hye Ryung\} and Kim, \{Hyo In\} and Byun, \{Su Jeong\} and Park, \{Dae Young\} and Jeong, \{Mun Seok\} and Byeon, \{Clare Chisu\}",

note = "Publisher Copyright: {\textcopyright} 2018, The Korean Physical Society.",

year = "2018",

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day = "1",

doi = "10.3938/jkps.73.1729",

language = "English",

volume = "73",

pages = "1729--1734",

journal = "Journal of the Korean Physical Society",

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TY - JOUR

T1 - Temperature Driven Phase Transition of Organic-Inorganic Halide Perovskite Single Crystals

AU - Byun, Hye Ryung

AU - Kim, Hyo In

AU - Byun, Su Jeong

AU - Park, Dae Young

AU - Jeong, Mun Seok

AU - Byeon, Clare Chisu

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Organic-inorganic halide perovskite single crystals undergo phase transition of being cubic, tetragonal, or orthorhombic depending on the temperature. We investigated the CH3NH3PbBr3−xIx single crystals grown by the inverse temperature crystallization method with temperature-dependent UV-Vis absorption and photoluminescence. From the temperature-dependent absorption measurement, the optical band gap is extracted by derivation of absorption spectrum fitting and Tauc plot. In our results, CH3NH3PbBr3−xIx single crystals show that an abrupt change in optical band gap, PL peak position and intensity appears around 120 K - 170 K regions, indicating the phase transition temperature.

AB - Organic-inorganic halide perovskite single crystals undergo phase transition of being cubic, tetragonal, or orthorhombic depending on the temperature. We investigated the CH3NH3PbBr3−xIx single crystals grown by the inverse temperature crystallization method with temperature-dependent UV-Vis absorption and photoluminescence. From the temperature-dependent absorption measurement, the optical band gap is extracted by derivation of absorption spectrum fitting and Tauc plot. In our results, CH3NH3PbBr3−xIx single crystals show that an abrupt change in optical band gap, PL peak position and intensity appears around 120 K - 170 K regions, indicating the phase transition temperature.

KW - Derivation of absorption spectrum fitting (DASF)

KW - Perovskite single crystal

KW - Phase transition

KW - Photoluminescence

KW - Temperature-dependent absorption

UR - https://www.scopus.com/pages/publications/85058688882

U2 - 10.3938/jkps.73.1729

DO - 10.3938/jkps.73.1729

M3 - Article

AN - SCOPUS:85058688882

SN - 0374-4884

VL - 73

SP - 1729

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JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 11

ER -

Temperature Driven Phase Transition of Organic-Inorganic Halide Perovskite Single Crystals

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Keywords

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