Vertical Type Organic Transistor Using C₆₀ and its Application for OLET

Abstract

We have fabricated static induction transistor of vertical type using C₆₀ with high carrier mobility as n-type organic semiconductor material to improve the characteristics of organic transistor. The effects of thin film thickness and the rate of deposition on the current-voltage and on-off ratio of transistor were investigated. And, we also studied the surface morphology of C₆₀ layer under various deposition rate with AFM. The vertical type organic transistor using C₆₀ exhibited low operation voltage compared to the case of F16CuPc. Additionally, the light emitting transistor using the vertical type transistor and P3HT as a light emitting polymer was investigated.

Keywords:

• C₆₀
• light emitting transistor
• on-off ratio
• operation voltage
• vertical type transistor

Acknowledgments

This work was supported by University Research Program of the Ministry of Information and Communication in South Korea (04-Basic Research-047), the Basic Research Program of the Korea Science & Engineering Foundation (R01-2006-000-10196-0) and the second stage BK-21.