Organic Light-Emitting Field-Effect Transistors Based upon Pentacene and Perylene

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• 作者：Hoon-Seok Seo ; Dae-Kyu Kim ; Jeong-Do Oh ; Eun-Sol Shin ; Jong-Ho Choi
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：March 7, 2013
• 年：2013
• 卷：117
• 期：9
• 页码：4764-4770
• 全文大小：456K
• 年卷期：v.117,no.9(March 7, 2013)
• ISSN：1932-7455

文摘

Air-stable, ambipolar heterojunction-based organic light-emitting field-effect transistors (OLEFETs) with a top-contact, multidigitated, long-channel geometry were produced, and the current鈥搗oltage鈥搇ight emission (I鈥揤鈥揕) characteristics were systematically examined. Two active layers of p-type pentacene and n-type N,N鈥?ditridecylperylene-3,4,9,10-tetra carboxylic diimide (P13) as well as a protecting layer of 2,5-bis(4-biphenyl) thiophene (BP1T) were successively deposited using the neutral cluster beam deposition method. On the basis of the growth of high-quality, well-packed crystalline thin films, the OLEFETs demonstrated good field-effect characteristics, well-balanced ambipolarity, operational stability, and electroluminescence (EL) under ambient conditions. The operating conduction and EL mechanisms responsible for the observed recombination zone are discussed with the aid of light-emission images obtained using a charge-coupled device.