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Organic Light-Emitting and Photodetector Devices for Flexible REVIEW PAPER IEICE Electronics Express, Vol.14, No.20, 1–16 Organic light-emitting and photodetector devices for flexible optical link and sensor devices: Fundamentals and future prospects in printed optoelectronic devices for high-speed modulation Hirotake Kajiia) Graduate School of Engineering, Osaka University, 2–1 Yamada-oka, Suita, Osaka 565–0871, Japan a) [email protected] Abstract: This paper describes the application of organic photonic devices including organic light-emitting and photodetector devices to integrated photonic devices for the realization of flexible optical link and sensor devices. Fundamentals and future prospects in printed optoelectronic devices for high-speed modulation are discussed and reviewed. Keywords: organic light-emitting diodes, organic photodetectors, organic light-emitting transistor, high speed, printed electrodes, sensor Classification: Electron devices, circuits and modules References [1] M. A. Baldo, et al.: “Very high-efficiency green organic light emitting devices based on electro-phosphorescence,” Appl. Phys. Lett. 75 (1999) 4 (DOI: 10. 1063/1.124258). [2] H. Uoyama, et al.: “Highly efficient organic light-emitting diodes from delayed fluorescence,” Nature 492 (2012) 234 (DOI: 10.1038/nature11687). [3] Y. Ohmori, et al.: “Realization of polymeric optical integrated devices utilizing organic light emitting diodes and photo detectors fabricated on a polymeric waveguide,” IEEE J. Sel. Top. Quantum Electron. 10 (2004) 70 (DOI: 10.1109/ JSTQE.2004.824106). [4] H. Kajii, et al.: “Organic light-emitting diode fabricated on a polymer substrate for optical links,” Thin Solid Films 438–439 (2003) 334 (DOI: 10.1016/S0040- 6090(03)00753-3). [5] H. 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