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Title: Synthesis, Crystal and Electronic Structures, and Optical Properties of (CH3NH3)2CdX4 (X = Cl, Br, I)

Abstract

Here, we report the synthesis, crystal and electronic structures, as well as optical properties of the hybrid organic–inorganic compounds MA2CdX4 (MA = CH3NH3; X = Cl, Br, I). MA2CdI4 is a new compound, whereas, for MA2CdCl4 and MA2CdBr4, structural investigations have already been conducted but electronic structures and optical properties are reported here for the first time. Single crystals were grown through slow evaporation of MA2CdX4 solutions with optimized conditions yielding mm-sized colorless (X = Cl, Br) and pale yellow (X = I) crystals. Single crystal and variable temperature powder X-ray diffraction measurements suggest that MA2CdCl4 forms a 2D layered perovskite structure and has two structural transitions at 283 and 173 K. In contrast, MA2CdBr4 and MA2CdI4 adopt 0D K2SO4-derived crystal structures based on isolated CdX4 tetrahedra and show no phase transitions down to 20 K. The contrasting crystal structures and chemical compositions in the MA2CdX4 family impact their air stabilities, investigated for the first time in this work; MA2CdCl4 is air-stable, whereas MA2CdBr4 and MA2CdI4 partially decompose when left in air. Optical absorption measurements suggest that MA2CdX4 have large optical band gaps above 3.9 eV. Room temperature photoluminescence spectra of MA2CdX4 yield broad peaks in the 375–955 nm rangemore » with full width at half-maximum values up to 208 nm. These PL peaks are tentatively assigned to self-trapped excitons in MA2CdX4 following the crystal and electronic structure considerations. The bands around the Fermi level have small dispersions, which is indicative of high charge localization with significant exciton binding energies in MA2CdX4. On the basis of our combined experimental and computational results, MA2CdX4 and related compounds may be of interest for white-light-emitting phosphors and scintillator applications.« less

Authors:
 [1]; ORCiD logo [2];  [1]; ORCiD logo [2];  [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of Oklahoma, Norman, OK (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1410200
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Inorganic Chemistry
Additional Journal Information:
Journal Volume: 56; Journal Issue: 22; Journal ID: ISSN 0020-1669
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Roccanova, Rachel, Ming, Wenmei, Whiteside, Vincent R., McGuire, Michael A., Sellers, Ian R., Du, Mao -Hua, and Saparov, Bayrammurad. Synthesis, Crystal and Electronic Structures, and Optical Properties of (CH3NH3)2CdX4 (X = Cl, Br, I). United States: N. p., 2017. Web. https://doi.org/10.1021/acs.inorgchem.7b01986.
Roccanova, Rachel, Ming, Wenmei, Whiteside, Vincent R., McGuire, Michael A., Sellers, Ian R., Du, Mao -Hua, & Saparov, Bayrammurad. Synthesis, Crystal and Electronic Structures, and Optical Properties of (CH3NH3)2CdX4 (X = Cl, Br, I). United States. https://doi.org/10.1021/acs.inorgchem.7b01986
Roccanova, Rachel, Ming, Wenmei, Whiteside, Vincent R., McGuire, Michael A., Sellers, Ian R., Du, Mao -Hua, and Saparov, Bayrammurad. Thu . "Synthesis, Crystal and Electronic Structures, and Optical Properties of (CH3NH3)2CdX4 (X = Cl, Br, I)". United States. https://doi.org/10.1021/acs.inorgchem.7b01986. https://www.osti.gov/servlets/purl/1410200.
@article{osti_1410200,
title = {Synthesis, Crystal and Electronic Structures, and Optical Properties of (CH3NH3)2CdX4 (X = Cl, Br, I)},
author = {Roccanova, Rachel and Ming, Wenmei and Whiteside, Vincent R. and McGuire, Michael A. and Sellers, Ian R. and Du, Mao -Hua and Saparov, Bayrammurad},
abstractNote = {Here, we report the synthesis, crystal and electronic structures, as well as optical properties of the hybrid organic–inorganic compounds MA2CdX4 (MA = CH3NH3; X = Cl, Br, I). MA2CdI4 is a new compound, whereas, for MA2CdCl4 and MA2CdBr4, structural investigations have already been conducted but electronic structures and optical properties are reported here for the first time. Single crystals were grown through slow evaporation of MA2CdX4 solutions with optimized conditions yielding mm-sized colorless (X = Cl, Br) and pale yellow (X = I) crystals. Single crystal and variable temperature powder X-ray diffraction measurements suggest that MA2CdCl4 forms a 2D layered perovskite structure and has two structural transitions at 283 and 173 K. In contrast, MA2CdBr4 and MA2CdI4 adopt 0D K2SO4-derived crystal structures based on isolated CdX4 tetrahedra and show no phase transitions down to 20 K. The contrasting crystal structures and chemical compositions in the MA2CdX4 family impact their air stabilities, investigated for the first time in this work; MA2CdCl4 is air-stable, whereas MA2CdBr4 and MA2CdI4 partially decompose when left in air. Optical absorption measurements suggest that MA2CdX4 have large optical band gaps above 3.9 eV. Room temperature photoluminescence spectra of MA2CdX4 yield broad peaks in the 375–955 nm range with full width at half-maximum values up to 208 nm. These PL peaks are tentatively assigned to self-trapped excitons in MA2CdX4 following the crystal and electronic structure considerations. The bands around the Fermi level have small dispersions, which is indicative of high charge localization with significant exciton binding energies in MA2CdX4. On the basis of our combined experimental and computational results, MA2CdX4 and related compounds may be of interest for white-light-emitting phosphors and scintillator applications.},
doi = {10.1021/acs.inorgchem.7b01986},
journal = {Inorganic Chemistry},
number = 22,
volume = 56,
place = {United States},
year = {2017},
month = {11}
}

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Works referenced in this record:

Efficient luminescent solar cells based on tailored mixed-cation perovskites
journal, January 2016


Perovskite Materials for Light-Emitting Diodes and Lasers
journal, May 2016

  • Veldhuis, Sjoerd A.; Boix, Pablo P.; Yantara, Natalia
  • Advanced Materials, Vol. 28, Issue 32
  • DOI: 10.1002/adma.201600669

Solution-processed hybrid perovskite photodetectors with high detectivity
journal, November 2014

  • Dou, Letian; Yang, Yang (Micheal); You, Jingbi
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms6404

Intriguing Optoelectronic Properties of Metal Halide Perovskites
journal, June 2016


Organic–Inorganic Perovskites: Structural Versatility for Functional Materials Design
journal, March 2016


Metal-halide perovskites for photovoltaic and light-emitting devices
journal, May 2015

  • Stranks, Samuel D.; Snaith, Henry J.
  • Nature Nanotechnology, Vol. 10, Issue 5
  • DOI: 10.1038/nnano.2015.90

Chemical Approaches to Addressing the Instability and Toxicity of Lead–Halide Perovskite Absorbers
journal, August 2016


Designing indirect–direct bandgap transitions in double perovskites
journal, January 2017

  • Tran, T. Thao; Panella, Jessica R.; Chamorro, Juan R.
  • Materials Horizons, Vol. 4, Issue 4
  • DOI: 10.1039/C7MH00239D

Strong Electron–Phonon Coupling and Self-Trapped Excitons in the Defect Halide Perovskites A 3 M 2 I 9 (A = Cs, Rb; M = Bi, Sb)
journal, April 2017


Thin-Film Preparation and Characterization of Cs 3 Sb 2 I 9 : A Lead-Free Layered Perovskite Semiconductor
journal, August 2015


Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors
journal, May 2013

  • Heo, Jin Hyuck; Im, Sang Hyuk; Noh, Jun Hong
  • Nature Photonics, Vol. 7, Issue 6, p. 486-491
  • DOI: 10.1038/nphoton.2013.80

Detection of X-ray photons by solution-processed lead halide perovskites
journal, May 2015

  • Yakunin, Sergii; Sytnyk, Mykhailo; Kriegner, Dominik
  • Nature Photonics, Vol. 9, Issue 7
  • DOI: 10.1038/nphoton.2015.82

Crystal Growth of the Perovskite Semiconductor CsPbBr 3 : A New Material for High-Energy Radiation Detection
journal, June 2013

  • Stoumpos, Constantinos C.; Malliakas, Christos D.; Peters, John A.
  • Crystal Growth & Design, Vol. 13, Issue 7
  • DOI: 10.1021/cg400645t

Effects of Organic Moieties on Luminescence Properties of Organic–Inorganic Layered Perovskite-Type Compounds
journal, April 2014

  • Kawano, Naoki; Koshimizu, Masanori; Sun, Yan
  • The Journal of Physical Chemistry C, Vol. 118, Issue 17
  • DOI: 10.1021/jp4114305

Single-crystal CeCl3(CH3OH)4: A new metal-organic cerium chloride methanol adduct for scintillator applications
journal, December 2008

  • Boatner, L. A.; Wisniewski, D.; Neal, J. S.
  • Applied Physics Letters, Vol. 93, Issue 24
  • DOI: 10.1063/1.3049137

New Family of Cerium Halide Based Materials: CeX 3 ·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings
journal, September 2012

  • Vaughn, Shae Anne; Chakoumakos, Bryan C.; Custelcean, Radu
  • Inorganic Chemistry, Vol. 51, Issue 20
  • DOI: 10.1021/ic3003349

Discrete Electronic Bands in Semiconductors and Insulators: Potential High-Light-Yield Scintillators
journal, May 2015


Photochemistry on nonreactive and reactive (semiconductor) surfaces
journal, January 1993


Electronegativity values from thermochemical data
journal, June 1961


Band gaps and electronic structure of transition-metal compounds
journal, July 1985


X-Ray study of the structural first-order phase transition (Cmca-P42/ncm) in (CH3NH3)2CdCl4
journal, October 1975


X-ray study of structural phase transitions in the perovskite-type layer compound (CH3NH3)2CdCl4
journal, July 1976


New tetrahedrally coordinated A2CdBr4 compounds (A = Cs, CH3NH3)
journal, November 1979


Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
journal, July 2014

  • Jeon, Nam Joong; Noh, Jun Hong; Kim, Young Chan
  • Nature Materials, Vol. 13, Issue 9, p. 897-903
  • DOI: 10.1038/nmat4014

Chemistry and structure in Acta Crystallographica Section C
journal, January 2015


SHELXT – Integrated space-group and crystal-structure determination
journal, January 2015

  • Sheldrick, George M.
  • Acta Crystallographica Section A Foundations and Advances, Vol. 71, Issue 1, p. 3-8
  • DOI: 10.1107/S2053273314026370

Generalized Gradient Approximation Made Simple
journal, October 1996

  • Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
  • Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
  • DOI: 10.1103/PhysRevLett.77.3865

Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
journal, July 1996


From ultrasoft pseudopotentials to the projector augmented-wave method
journal, January 1999


Die Krystallstruktur von NH 4 CdCl 3 und RbCdCl 3
journal, January 1939

  • Mac Gillavry, C. H.; Nijveld, H.; Dierdorp, S.
  • Recueil des Travaux Chimiques des Pays-Bas, Vol. 58, Issue 3
  • DOI: 10.1002/recl.19390580302

Die Kristallstruktur von K(CdCl3)
journal, April 1947


Structural Phase Transitions in CsPbCl 3 and RbCdCl 3
journal, August 1978

  • Plesko, S.; Kind, R.; Roos, J.
  • Journal of the Physical Society of Japan, Vol. 45, Issue 2
  • DOI: 10.1143/JPSJ.45.553

Synthesis, Crystal Structure, and Electronic Structure of InCdBr3
journal, April 1995


Solid-state principles applied to organic–inorganic perovskites: new tricks for an old dog
journal, January 2014

  • Kieslich, Gregor; Sun, Shijing; Cheetham, Anthony K.
  • Chem. Sci., Vol. 5, Issue 12
  • DOI: 10.1039/C4SC02211D

An extended Tolerance Factor approach for organic–inorganic perovskites
journal, January 2015

  • Kieslich, Gregor; Sun, Shijing; Cheetham, Anthony K.
  • Chemical Science, Vol. 6, Issue 6
  • DOI: 10.1039/C5SC00961H

Formability of ABX 3 ( X = F, Cl, Br, I) halide perovskites
journal, November 2008

  • Li, Chonghea; Lu, Xionggang; Ding, Weizhong
  • Acta Crystallographica Section B Structural Science, Vol. 64, Issue 6
  • DOI: 10.1107/S0108768108032734

The crystal structure of Rb 2 CdCl 4 in para- and ferroelastic phases
journal, March 1989


The structures of hexagonal CsCdCl 3 and tetragonal Cs 2 CdCl 4
journal, June 1964


Le tétrabromomercurate(II) de monométhylammonium
journal, February 1983


Struktur und Eigenschaften von Doppelhalogeniden von substituiertem Ammonium und Quecksilber(II). VI [1]. Die Kristallstruktur von (CH3NH3)2HgBr4 und (CH3NH3)2HgI4
journal, December 1986

  • K�rfer, M.; Fuess, H.; Bats, J. W.
  • Zeitschrift f�r anorganische und allgemeine Chemie, Vol. 543, Issue 12
  • DOI: 10.1002/zaac.19865431213

Birefringence, X-ray and neutron diffraction measurements on the structural phase transitions of (CH3NH3)2 MnCl4 and (CH3NH3)2FeCl4
journal, July 1974


Infrared studies of the phase transitions of alkylammonium halides, RNH3X, and bis-(alkylammonium) tetrahalogenometallates(II), (RNH3)2MX4, (R = alkyl, M = metal, X = Cl or Br)
journal, January 1981

  • Rao, C. N. R.; Ganguly, Somnath; Swamy, H. Ramachandra
  • Journal of the Chemical Society, Faraday Transactions 2, Vol. 77, Issue 10
  • DOI: 10.1039/f29817701825

Molecular reorientation in solid (CH3NH3)2CdBR4 as studied by 79Br and 81Br nuclear quadrupole resonance and 1H nuclear magnetic resonance
journal, January 1992

  • Nakayama, Hirokazu; Eguchi, Taro; Nakamura, Nobuo
  • Journal of the Chemical Society, Faraday Transactions, Vol. 88, Issue 20
  • DOI: 10.1039/ft9928803067

A Highly Disordered New Solid Phase Containing Isotropically Reorienting Cations in (CH 3 NH 3 )2CdBr 4 Studied by 1 H NMR and Thermal Measurements
journal, October 1990

  • Ishida, Hiroyuki; Takagi, Kentaro; Terashima, Mifune
  • Zeitschrift für Naturforschung A, Vol. 45, Issue 9-10
  • DOI: 10.1515/zna-1990-9-1018

Massive Anisotropic Thermal Expansion and Thermo-Responsive Breathing in Metal-Organic Frameworks Modulated by Linker Functionalization
journal, July 2013

  • Henke, Sebastian; Schneemann, Andreas; Fischer, Roland A.
  • Advanced Functional Materials, Vol. 23, Issue 48
  • DOI: 10.1002/adfm.201301256

Uniaxial Negative Thermal Expansion and Mechanical Properties of a Zinc-Formate Framework
journal, February 2017

  • Gao, Hongqiang; Wei, Wenjuan; Li, Yizhang
  • Materials, Vol. 10, Issue 2
  • DOI: 10.3390/ma10020151

Self-Motile Colloidal Particles: From Directed Propulsion to Random Walk
journal, July 2007


High Chloride Doping Levels Stabilize the Perovskite Phase of Cesium Lead Iodide
journal, May 2016


A Layered Hybrid Perovskite Solar-Cell Absorber with Enhanced Moisture Stability
journal, September 2014

  • Smith, Ian C.; Hoke, Eric T.; Solis-Ibarra, Diego
  • Angewandte Chemie International Edition, Vol. 53, Issue 42
  • DOI: 10.1002/anie.201406466

Optical reflectivity and electronic structure of layered cadmium halides
journal, April 1986


Synthesis, structural and optical properties of a novel bilayered organic–inorganic perovskite C5Pb2I5
journal, April 2010


Dielectric confinement effect on excitons in PbI 4 -based layered semiconductors
journal, March 1992


Two-Dimensional Excitons and Photoluminescence Properties of the Organic/Inorganic (4-FC 6 H 4 C 2 H 4 NH 3 ) 2 [PbI 4 ] Nanomaterial
journal, October 2009

  • Dammak, T.; Koubaa, M.; Boukheddaden, K.
  • The Journal of Physical Chemistry C, Vol. 113, Issue 44
  • DOI: 10.1021/jp9057934

Optical, electrical properties and characterization of (C2H5NH3)2CdCl4 compound
journal, July 2016


Structural, optical properties and characterization of (C2H5NH3)2CdCl4, (C2H5NH3)2CuCl4 and (C2H5NH3)2Cd0.5Cu0.5Cl4 compounds
journal, March 2017


Optical Spectra of Inorganic-Organic Compounds (C 2 H 5 NH 3 ) 2 CdCl 4 in 3–30 eV Range
journal, November 2001

  • Ohnishi, Akimasa; Tanaka, Ken-ichi; Kitaura, Mamoru
  • Journal of the Physical Society of Japan, Vol. 70, Issue 11
  • DOI: 10.1143/JPSJ.70.3424

Luminescence Study of Thermally-Oxidized Porous Si under Subgap or Overgap Excitation
journal, April 1998

  • Shiba, Kazutoshi; Miyazaki, Seiichi; Hirose, Masataka
  • Japanese Journal of Applied Physics, Vol. 37, Issue Part 1, No. 4A
  • DOI: 10.1143/JJAP.37.1684

Material parameters for electrostriction
journal, October 1996

  • Shkel, Yuri M.; Klingenberg, Daniel J.
  • Journal of Applied Physics, Vol. 80, Issue 8
  • DOI: 10.1063/1.363439

Sub-Gap Excited Photoluminescence in III-V Compound Semiconductor Heterostructures
journal, September 2000


White-Light Emission and Structural Distortion in New Corrugated Two-Dimensional Lead Bromide Perovskites
journal, March 2017

  • Mao, Lingling; Wu, Yilei; Stoumpos, Constantinos C.
  • Journal of the American Chemical Society, Vol. 139, Issue 14
  • DOI: 10.1021/jacs.7b01312

Self-Assembly of Broadband White-Light Emitters
journal, January 2014

  • Dohner, Emma R.; Hoke, Eric T.; Karunadasa, Hemamala I.
  • Journal of the American Chemical Society, Vol. 136, Issue 5
  • DOI: 10.1021/ja411045r

Intrinsic White-Light Emission from Layered Hybrid Perovskites
journal, September 2014

  • Dohner, Emma R.; Jaffe, Adam; Bradshaw, Liam R.
  • Journal of the American Chemical Society, Vol. 136, Issue 38
  • DOI: 10.1021/ja507086b

Luminescence of CdCl 2 -CdBr 2 Solid Solutions
journal, November 1977

  • Nakagawa, Hideyuki; Hayashi, Keiji; Matsumoto, Hiroaki
  • Journal of the Physical Society of Japan, Vol. 43, Issue 5
  • DOI: 10.1143/JPSJ.43.1655

Relaxed excitonic states in CdI2 crystals
journal, January 1979


Indirect exciton luminescense and Raman scattering in CdI2
journal, June 1981


Determination of Optical Gain of Self-Trapped Exciton Luminescence in CdI 2
journal, December 1994

  • Ohnishi, Akimasa; Kitaura, Mamoru; Nakagawa, Hideyuki
  • Journal of the Physical Society of Japan, Vol. 63, Issue 12
  • DOI: 10.1143/JPSJ.63.4648

Life-time resolved emission spectra in CdCl2 crystals
journal, January 2005

  • Kawabata, S.; Kitaura, M.; Nakagawa, H.
  • physica status solidi (c), Vol. 2, Issue 1
  • DOI: 10.1002/pssc.200460109

Decay Time Studies on UV-Luminescence in CdBr2CdCl2 Mixed Crystals
journal, May 1996


Emission spectra and decay characteristics in photo-stimulated (CnH2n+1NH3)2CdCl4 : n=1, 2, 3
journal, May 1996


Electronic structure engineering of elpasolites: Case of Cs2AgYCl6
journal, November 2013


Predicting and Screening Dielectric Transitions in a Series of Hybrid Organic-Inorganic Double Perovskites via an Extended Tolerance Factor Approach
journal, April 2016

  • Shi, Chao; Yu, Chun-Hua; Zhang, Wen
  • Angewandte Chemie International Edition, Vol. 55, Issue 19
  • DOI: 10.1002/anie.201602028

Mechanism for Broadband White-Light Emission from Two-Dimensional (110) Hybrid Perovskites
journal, May 2016

  • Hu, Te; Smith, Matthew D.; Dohner, Emma R.
  • The Journal of Physical Chemistry Letters, Vol. 7, Issue 12
  • DOI: 10.1021/acs.jpclett.6b00793

Polaron self-localization in white-light emitting hybrid perovskites
journal, January 2017

  • Cortecchia, Daniele; Yin, Jun; Bruno, Annalisa
  • Journal of Materials Chemistry C, Vol. 5, Issue 11
  • DOI: 10.1039/C7TC00366H

Excitonic and Polaronic Properties of 2D Hybrid Organic–Inorganic Perovskites
journal, January 2017


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    journal, January 2018

    • Han, Shiguo; Liu, Xitao; Zhang, Jing
    • Journal of Materials Chemistry C, Vol. 6, Issue 38
    • DOI: 10.1039/c8tc03517b

    High-throughput computational design of organic–inorganic hybrid halide semiconductors beyond perovskites for optoelectronics
    journal, January 2019

    • Li, Yuheng; Yang, Kesong
    • Energy & Environmental Science, Vol. 12, Issue 7
    • DOI: 10.1039/c9ee01371g

    Air-stable all-inorganic perovskite quantum dot inks for multicolor patterns and white LEDs
    journal, January 2019


    (1,4-Butyldiammonium)CdBr 4 : a layered organic–inorganic hybrid perovskite with a visible-blind ultraviolet photoelectric response
    journal, January 2018

    • Wang, Yuyin; Ji, Chengmin; Liu, Xitao
    • Inorganic Chemistry Frontiers, Vol. 5, Issue 10
    • DOI: 10.1039/c8qi00551f

    Rb 2 CuX 3 (X = Cl, Br): 1D All‐Inorganic Copper Halides with Ultrabright Blue Emission and Up‐Conversion Photoluminescence
    journal, November 2019

    • Creason, Tielyr D.; Yangui, Aymen; Roccanova, Rachel
    • Advanced Optical Materials, Vol. 8, Issue 2
    • DOI: 10.1002/adom.201901338

    Zero-dimensional metal oxide Li 4 TiO 4
    journal, January 2019


    (CH 3 NH 3 )AuX 4 ⋅H 2 O (X=Cl, Br) and (CH 3 NH 3 )AuCl 4 : Low‐Band Gap Lead‐Free Layered Gold Halide Perovskite Materials
    journal, July 2019

    • Worley, Chris; Yangui, Aymen; Roccanova, Rachel
    • Chemistry – A European Journal, Vol. 25, Issue 42
    • DOI: 10.1002/chem.201901112

    Additive-assisted synthesis and optoelectronic properties of (CH 3 NH 3 ) 4 Bi 6 I 22
    journal, January 2020

    • Sharma, Manila; Yangui, Aymen; Lusson, Alain
    • Inorganic Chemistry Frontiers, Vol. 7, Issue 7
    • DOI: 10.1039/c9qi01574d

    Exploring Organic Metal Halides with Reversible Temperature‐Responsive Dual‐Emissive Photoluminescence
    journal, October 2019