Prof. Daisuke Yokoyama Profile

Prof. Daisuke Yokoyama

Associate Professor at Yamagata Univ

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Author

Publications (4)

Proceedings Article | 25 August 2017 Paper

White emission based on excimer emission control of triple core chromophores

Hyocheol Jung, Jaehyun Lee, Hwangyu Shin, Joonghan Kim, Daisuke Yokoyama, Hidetaka Nishimura, Atsushi Wakamiya, Jongwook Park

Proceedings Volume 10362, 1036224 (2017) https://doi.org/10.1117/12.2272575

KEYWORDS: Excimers, Chromophores, Organic light emitting diodes, OLED lighting

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Proceedings Article | 22 September 2015 Presentation + Paper

Anisotropy in OLEDs

M. Callens, D. Yokoyama, K. Neyts

Proceedings Volume 9566, 95661G (2015) https://doi.org/10.1117/12.2189031

KEYWORDS: Organic light emitting diodes, Anisotropy, Refractive index, Interfaces, External quantum efficiency, Glasses, Scattering, Electromagnetic radiation, Lenses, Birefringence

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Proceedings Article | 19 November 2014 Paper

Differences between vacuum-deposited and spin-coated amorphous films of OLED materials (presentation video)

Daisuke Yokoyama, Maki Shibata

Proceedings Volume 9183, 91830E (2014) https://doi.org/10.1117/12.2060798

KEYWORDS: Organic light emitting diodes, Video, Light sources and illumination, Optical properties, Video processing, Current controlled current source

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Proceedings Article | 27 August 2009 Paper

Photophysical study of iridium complexes by absolute photoluminescence quantum yield measurements using an integrating sphere

Kengo Suzuki, Ayataka Endo, Toshitada Yoshihara, Seiji Tobita, Masayuki Yahiro, Daisuke Yokoyama, Chihaya Adachi

Proceedings Volume 7415, 741504 (2009) https://doi.org/10.1117/12.828463

KEYWORDS: Iridium, Quantum efficiency, Phosphorescence, Luminescence, Thin films, Integrating spheres, Light sources, Organic light emitting diodes, Photons, Charge-coupled devices

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