| Summary: | 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 97 === In this thesis, we utilized Pentacene and Pentacene doped by Na to prepare P type, and N type organic thin films, respectively. To dope Na, the Pentacene mixed by NaNH2 with various weight ratios were co-evaporated. And then these N/P organic thin films were used to develop organic vertical bipolar junction transistors on glass substrates. We used SEM to observe the films’ morphology; AFM to measure surface roughness and EDS to examine the dopant in the films. In addition, the parameters including the weight ratio of Pentacene to dopant Na in the evaporation, and growth rate were investigated and optimized to prepare organic vertical bipolar junction transistors.
The electric gain/optical gain of the developed vertical type NPN and PNP transistors on glass substrate without and with the illumination of tungsten lamp with light power of 3mW/cm2 are 1.72/8.17, and 1.11/4.09, respectively.
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