Temperature measurements of organic light-emitting diodes by stokes and anti-stokes raman scattering

Hiroya Tsuji; Atsushi Oda; Junji Kido; Takuro Sugiyama; Yukio Furukawa

doi:10.1143/JJAP.47.2171

Temperature measurements of organic light-emitting diodes by stokes and anti-stokes raman scattering

Hiroya Tsuji, Atsushi Oda, Junji Kido, Takuro Sugiyama, Yukio Furukawa

School of Advanced Science and Engineering

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

14 Citations (Scopus)

Abstract

We have measured the Stokes and anti-Stokes Raman scattering from organic light-emitting diodes based on copper phthalocyanine (CuPc), N,N′-di-1-naphthalenyl-N,N′-diphenyl-1,1′-biphenyl-4, 4′-diamine (α-NPD), and tris(8-quinolinolato) aluminum(III) (Alq₃) with excitation at 633 nm. All of the observed bands have been attributed to CuPc because of the resonance Raman effect. The temperature of the CuPc layer has been obtained by taking the intensity ratio of anti-Stokes to Stokes Raman scattering of the 483 cm^-1 vibration. The temperature of the CuPc layer in the device operated at 400 mA was 140 °C.

Original language	English
Pages (from-to)	2171-2173
Number of pages	3
Journal	Japanese journal of applied physics
Volume	47
Issue number	4 PART 1
DOIs	https://doi.org/10.1143/JJAP.47.2171
Publication status	Published - 2008 Apr 18

Keywords

Anti-Stokes Raman scattering
OLED
Raman spectroscopy
Stokes raman scattering
Temperature

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Temperature measurements of organic light-emitting diodes by stokes and anti-stokes raman scattering",

abstract = "We have measured the Stokes and anti-Stokes Raman scattering from organic light-emitting diodes based on copper phthalocyanine (CuPc), N,N′-di-1-naphthalenyl-N,N′-diphenyl-1,1′-biphenyl-4, 4′-diamine (α-NPD), and tris(8-quinolinolato) aluminum(III) (Alq3) with excitation at 633 nm. All of the observed bands have been attributed to CuPc because of the resonance Raman effect. The temperature of the CuPc layer has been obtained by taking the intensity ratio of anti-Stokes to Stokes Raman scattering of the 483 cm-1 vibration. The temperature of the CuPc layer in the device operated at 400 mA was 140 °C.",

keywords = "Anti-Stokes Raman scattering, OLED, Raman spectroscopy, Stokes raman scattering, Temperature",

author = "Hiroya Tsuji and Atsushi Oda and Junji Kido and Takuro Sugiyama and Yukio Furukawa",

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AU - Tsuji, Hiroya

AU - Oda, Atsushi

AU - Kido, Junji

AU - Sugiyama, Takuro

AU - Furukawa, Yukio

PY - 2008/4/18

Y1 - 2008/4/18

N2 - We have measured the Stokes and anti-Stokes Raman scattering from organic light-emitting diodes based on copper phthalocyanine (CuPc), N,N′-di-1-naphthalenyl-N,N′-diphenyl-1,1′-biphenyl-4, 4′-diamine (α-NPD), and tris(8-quinolinolato) aluminum(III) (Alq3) with excitation at 633 nm. All of the observed bands have been attributed to CuPc because of the resonance Raman effect. The temperature of the CuPc layer has been obtained by taking the intensity ratio of anti-Stokes to Stokes Raman scattering of the 483 cm-1 vibration. The temperature of the CuPc layer in the device operated at 400 mA was 140 °C.

AB - We have measured the Stokes and anti-Stokes Raman scattering from organic light-emitting diodes based on copper phthalocyanine (CuPc), N,N′-di-1-naphthalenyl-N,N′-diphenyl-1,1′-biphenyl-4, 4′-diamine (α-NPD), and tris(8-quinolinolato) aluminum(III) (Alq3) with excitation at 633 nm. All of the observed bands have been attributed to CuPc because of the resonance Raman effect. The temperature of the CuPc layer has been obtained by taking the intensity ratio of anti-Stokes to Stokes Raman scattering of the 483 cm-1 vibration. The temperature of the CuPc layer in the device operated at 400 mA was 140 °C.

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