論文

査読有り
2017年1月

Photon Emission and Reabsorption Processes in CH3NH3PbBr3 Single Crystals Revealed by Time-Resolved Two-Photon-Excitation Photoluminescence Microscopy

PHYSICAL REVIEW APPLIED
  • Takumi Yamada
  • ,
  • Yasuhiro Yamada
  • ,
  • Yumi Nakaike
  • ,
  • Atsushi Wakamiya
  • ,
  • Yoshihiko Kanemitsu

7
1
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevApplied.7.014001
出版者・発行元
AMER PHYSICAL SOC

The dynamical processes of radiative recombination of photocarriers and reabsorption of emitted photons in CH3NH3PbBr3 single crystals are studied using time-resolved two-photon-excitation photoluminescence (PL) microscopy. We find that the PL spectrum and its decay dynamics depend on the excitation-depth profile. As the excitation depth increases, the PL spectrum becomes asymmetric, the peak energy redshifts, and the PL decay time becomes longer. These observations can be well explained by a simple model including photon recycling (photon emission and reabsorption) in thick samples with strong band-to-band transitions and high radiative recombination efficiencies.

Web of Science ® 被引用回数 : 68

リンク情報
DOI
https://doi.org/10.1103/PhysRevApplied.7.014001
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000391484000001&DestApp=WOS_CPL

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