Temperature-dependent excitonic photoluminescence of hybrid organometal halide perovskite films

Handle URI:
http://hdl.handle.net/10754/563239
Title:
Temperature-dependent excitonic photoluminescence of hybrid organometal halide perovskite films
Authors:
Wu, Kewei; Bera, Ashok ( 0000-0002-5643-5973 ) ; Ma, Chun; Du, Yuanmin; Yang, Yang; LI, LIANG; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
Organometal halide perovskites have recently attracted tremendous attention due to their potential for photovoltaic applications, and they are also considered as promising materials in light emitting and lasing devices. In this work, we investigated in detail the cryogenic steady state photoluminescence properties of a prototypical hybrid perovskite CH3NH3PbI3-xClx. The evolution of the characteristics of two excitonic peaks coincides with the structural phase transition around 160 K. Our results further revealed an exciton binding energy of 62.3 ± 8.9 meV and an optical phonon energy of 25.3 ± 5.2 meV, along with an abnormal blue-shift of the band gap in the high-temperature tetragonal phase. This journal is
KAUST Department:
Materials Science and Engineering Program; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC); Core Labs; Laboratory of Nano Oxides for Sustainable Energy
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Phys. Chem. Chem. Phys.
Issue Date:
2014
DOI:
10.1039/c4cp03573a
Type:
Article
ISSN:
14639076
Sponsors:
This work is supported by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorWu, Keweien
dc.contributor.authorBera, Ashoken
dc.contributor.authorMa, Chunen
dc.contributor.authorDu, Yuanminen
dc.contributor.authorYang, Yangen
dc.contributor.authorLI, LIANGen
dc.contributor.authorWu, Taoen
dc.date.accessioned2015-08-03T11:43:52Zen
dc.date.available2015-08-03T11:43:52Zen
dc.date.issued2014en
dc.identifier.issn14639076en
dc.identifier.doi10.1039/c4cp03573aen
dc.identifier.urihttp://hdl.handle.net/10754/563239en
dc.description.abstractOrganometal halide perovskites have recently attracted tremendous attention due to their potential for photovoltaic applications, and they are also considered as promising materials in light emitting and lasing devices. In this work, we investigated in detail the cryogenic steady state photoluminescence properties of a prototypical hybrid perovskite CH3NH3PbI3-xClx. The evolution of the characteristics of two excitonic peaks coincides with the structural phase transition around 160 K. Our results further revealed an exciton binding energy of 62.3 ± 8.9 meV and an optical phonon energy of 25.3 ± 5.2 meV, along with an abnormal blue-shift of the band gap in the high-temperature tetragonal phase. This journal isen
dc.description.sponsorshipThis work is supported by King Abdullah University of Science and Technology (KAUST).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleTemperature-dependent excitonic photoluminescence of hybrid organometal halide perovskite filmsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.contributor.departmentCore Labsen
dc.contributor.departmentLaboratory of Nano Oxides for Sustainable Energyen
dc.identifier.journalPhys. Chem. Chem. Phys.en
kaust.authorWu, Keweien
kaust.authorBera, Ashoken
kaust.authorDu, Yuanminen
kaust.authorYang, Yangen
kaust.authorLI, LIANGen
kaust.authorWu, Taoen
kaust.authorMa, Chunen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.