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This study proposes an alternative planar bottom-contact (pBC) structure to enhance the electrical performance of pentacene-based organic thin-film transistors (OTFTs). This pBC structure uses a bilayer dielectric to control planarization with a precise etch depth and introduces a bilayer photoresist lift-off method to ensure that planarization produces an optimum flatness. Because of the improved...
This study reports the performance improvement of pentacene-based organic thin-film transistor (OTFT) with the proposed planar bottom-contact structure and the bi-layer gate dielectric. The planar bottom-contact (pBC) structure can provide a continuous plane to enhance the grain growth continuity of pentacene layer, further improving the charge carriers injection or/and transportation near the edge...
This study reports the performance improvement of a pentacene-based OTFT (organic thin-film transistor) with a planar bottom-contact structure, and investigates the influence of surface roughness of source/drain electrodes with planar structure on electrical characteristics. Because the contact resistance between the organic semiconductor and the source/drain is significantly decreased, the mobility...
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