Highly efficient pixelated near-infrared OLED light source

T. Ichikawa; A. Takagi; N. Yamada; K. Itonaga; H. Nakanotani; C. Adachi

doi:10.1117/12.2608387

3 March 2022 Highly efficient pixelated near-infrared OLED light source

T. Ichikawa, A. Takagi, N. Yamada, K. Itonaga, H. Nakanotani, C. Adachi

Proceedings Volume 12022, Light-Emitting Devices, Materials, and Applications XXVI; 1202209 (2022) https://doi.org/10.1117/12.2608387
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

In this study, we developed highly efficient pixelated near-infrared organic light-emitting diodes (NIR-OLEDs) featuring self-emission and small form factor, which are expected to expand applications of light sensing. To realize new NIROLEDs in which active-matrix drive is possible by multiple fine pixels, we established a highly efficient NIR-OLED material and top-emitting NIR-OLEDs with fine pixels. Excellent characteristics including pixel pitch of 7.8 μm, peak wavelength of more than 900 nm, and external quantum efficiency of approximately 1% were successfully demonstrated. In addition, we confirmed the feasibility of highly efficient NIR-OLEDs with fine pixels, which is expected to contribute toward miniaturized sensing light sources with low power consumption, and hence improved value.

Conference Presentation

Citation Download Citation

T. Ichikawa, A. Takagi, N. Yamada, K. Itonaga, H. Nakanotani, and C. Adachi "Highly efficient pixelated near-infrared OLED light source", Proc. SPIE 12022, Light-Emitting Devices, Materials, and Applications XXVI, 1202209 (3 March 2022); https://doi.org/10.1117/12.2608387

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