[18a-145-1~10] 12.4 Organic light-emitting devices and organic transistors

[18a-145-2] Flicker noise in high-mobility organic single crystal transistors

〇Shunichiro Watanabe^1,2,3, Akifumi Yamamura^1,2, Toshihiro Okamoto^1,2,3, Jun Takeya^1,2,4 (1.Univ. of Tokyo, 2.OPERANDO-OIL, 3.PRESTO JST, 4.NIMS)

Keywords:organic single crystal, Flicker noise, high mobility

Low-frequency noise, generated by a fluctuation of current, is a key issue for integrating electronic elements into a high density circuit. The recent improvement of field-effect mobility has allowed for organic integrated circuits with a relatively high speed operation. Therefore an in-depth understanding of the noise feature will be indispensable to further improve the circuit stability and durability. Here, we performed noise measurements in solution-processed organic single crystal transistors, and discovered that a low trap density-of-states due to the absence of structural disorder in combination with coherent band-like transport gives rise to an unprecedentedly low flicker noise. The excellent noise property in organic single crystals will allow their potential to be fully exploited for high speed communication and sensing applications.