Organic complementary-like inverters employing methanofullerene-based ambipolar field-effect transistors

Applied Physics Letters - Tập 85 Số 18 - Trang 4205-4207 - 2004
Thomas D. Anthopoulos1, Dago M. de Leeuw1, Eugenio Cantatore1, Sepas Setayesh1, E. J. Meijer1, C. Tanase2, Jan C. Hummelen2, Paul W. M. Blom2
1Philips Research Laboratories , Prof. Holstlaan 4 (WAG), 5656 AA Eindhoven, The Netherlands
2University of Groningen Molecular Electronics, Materials Science Centre Plus, , Nijenborgh 4 9747 AG Groningen, The Netherlands

Tóm tắt

We demonstrate a complementary-like inverter comprised of two identical ambipolar field-effect transistors based on the solution processable methanofullerene [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The transistors are capable of operating in both the p- and n-channel regimes depending upon the bias conditions. However, in the p-channel regime transistor operation is severely contact limited. We attribute this to the presence of a large injection barrier for holes at the Au∕PCBM interface. Despite this barrier the inverter operates in both the first and third quadrant of the voltage output versus voltage input plot exhibiting a maximum gain in the order of 20. Since the inverter represents the basic building block of most logic circuits we anticipate that other complementary-like circuits can be realized by this approach.

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Thông tin
Thông tin xuất bản

Applied Physics Letters

Tập 85 Số 18

4205-4207

Thông tin tác giả