Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3 perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy

K. Kojima; K. Ikemura; K. Matsumori; Y. Yamada; Y. Kanemitsu; S. F. Chichibu

doi:10.1063/1.5110652

Internal quantum efficiency of radiation in a bulk CH₃NH₃PbBr₃ perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy

K. Kojima, K. Ikemura, K. Matsumori, Y. Yamada, Y. Kanemitsu, S. F. Chichibu

IMRAM - Division of Measurements

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

21 Citations (Scopus)

Abstract

The internal quantum efficiency (IQE) of radiation for bulk CH₃NH₃PbBr₃ crystals was quantified by using omnidirectional photoluminescence spectroscopy. The angle-resolved photoluminescence revealed that the emission with photon energies higher than the absorption-edge shows a Lambertian distribution and that the light extraction efficiency is determined by the escaping cone. The IQE value strongly depends on the photo-excitation density (P), and a CH₃NH₃PbBr₃ crystal fabricated under the methylammonium-rich conditions gave the maximum IQE of 62.5% under P = 28 W/cm². A further increase in P gave rise to the decrease in IQE due to the Auger effects.

Original language	English
Article number	071116
Journal	APL Materials
Volume	7
Issue number	7
DOIs	https://doi.org/10.1063/1.5110652
Publication status	Published - 2019 Jul 1

Access to Document

10.1063/1.5110652

Cite this

@article{70ce0344191a4866a197778c5922330d,

title = "Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3 perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy",

abstract = "The internal quantum efficiency (IQE) of radiation for bulk CH3NH3PbBr3 crystals was quantified by using omnidirectional photoluminescence spectroscopy. The angle-resolved photoluminescence revealed that the emission with photon energies higher than the absorption-edge shows a Lambertian distribution and that the light extraction efficiency is determined by the escaping cone. The IQE value strongly depends on the photo-excitation density (P), and a CH3NH3PbBr3 crystal fabricated under the methylammonium-rich conditions gave the maximum IQE of 62.5% under P = 28 W/cm2. A further increase in P gave rise to the decrease in IQE due to the Auger effects.",

author = "K. Kojima and K. Ikemura and K. Matsumori and Y. Yamada and Y. Kanemitsu and Chichibu, {S. F.}",

note = "Funding Information: This work was partly supported by the Five-Star Alliance, JSPS KAKENHI (Grant Nos. JP16H06427, JP17H02907, and JP17H04809), and JST-CREST (Grant No. JPMJCR16N3), Japan. We thank Dr. T. Yamada for useful discussions. Publisher Copyright: {\textcopyright} 2019 Author(s).",

year = "2019",

month = jul,

day = "1",

doi = "10.1063/1.5110652",

language = "English",

volume = "7",

journal = "APL Materials",

issn = "2166-532X",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3 perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy

AU - Kojima, K.

AU - Ikemura, K.

AU - Matsumori, K.

AU - Yamada, Y.

AU - Kanemitsu, Y.

AU - Chichibu, S. F.

N1 - Funding Information: This work was partly supported by the Five-Star Alliance, JSPS KAKENHI (Grant Nos. JP16H06427, JP17H02907, and JP17H04809), and JST-CREST (Grant No. JPMJCR16N3), Japan. We thank Dr. T. Yamada for useful discussions. Publisher Copyright: © 2019 Author(s).

PY - 2019/7/1

Y1 - 2019/7/1

N2 - The internal quantum efficiency (IQE) of radiation for bulk CH3NH3PbBr3 crystals was quantified by using omnidirectional photoluminescence spectroscopy. The angle-resolved photoluminescence revealed that the emission with photon energies higher than the absorption-edge shows a Lambertian distribution and that the light extraction efficiency is determined by the escaping cone. The IQE value strongly depends on the photo-excitation density (P), and a CH3NH3PbBr3 crystal fabricated under the methylammonium-rich conditions gave the maximum IQE of 62.5% under P = 28 W/cm2. A further increase in P gave rise to the decrease in IQE due to the Auger effects.

AB - The internal quantum efficiency (IQE) of radiation for bulk CH3NH3PbBr3 crystals was quantified by using omnidirectional photoluminescence spectroscopy. The angle-resolved photoluminescence revealed that the emission with photon energies higher than the absorption-edge shows a Lambertian distribution and that the light extraction efficiency is determined by the escaping cone. The IQE value strongly depends on the photo-excitation density (P), and a CH3NH3PbBr3 crystal fabricated under the methylammonium-rich conditions gave the maximum IQE of 62.5% under P = 28 W/cm2. A further increase in P gave rise to the decrease in IQE due to the Auger effects.

UR - http://www.scopus.com/inward/record.url?scp=85070056374&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070056374&partnerID=8YFLogxK

U2 - 10.1063/1.5110652

DO - 10.1063/1.5110652

M3 - Article

AN - SCOPUS:85070056374

SN - 2166-532X

VL - 7

JO - APL Materials

JF - APL Materials

IS - 7

M1 - 071116

ER -

Internal quantum efficiency of radiation in a bulk CH₃NH₃PbBr₃ perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy

Abstract

Access to Document

Other files and links

Fingerprint

Cite this