Eur. Phys. J. Appl. Phys.
Volume 73, Number 2, February 2016
|Number of page(s)||6|
|Section||Physics of Organic Materials and Devices|
|Published online||29 February 2016|
Influence of underneath pentacene thickness on performance of p-n heterojunction organic thin film transistors
College of Communication Engineering, Chongqing University, 400044 Chongqing, P.R. China
a e-mail: email@example.com
Revised: 24 January 2016
Accepted: 28 January 2016
Published online: 29 February 2016
Organic thin film transistors (OTFTs) with heterojunction semiconducting layers composed of p-type pentacene and n-type fluorinated copper phthalocyanine (F16CuPc) have been fabricated. The influence of pentacene film thickness on performance of transistors is carefully investigated. It has been found that, with the increase of pentacene film thickness, the electron mobility increases at first and then decreases intensely. But the shift of VT is opposite comparing with electron mobility. The performance improvement can be attributed to the increase of free electron carriers by band bending at the pentacene/F16CuPc interface, and better F16CuPc film quality grown upon pentacene. Comparing with island growth-mode, layer-by-layer growth-mode of pentacene facilitates the growth of the upper F16CuPc film.
© EDP Sciences, 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.