Performance enhancement of organic thin-film transistors with improved copper phthalocyanine crystallization by inserting ultrathin pentacene buffer
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 6677-6680 |
Journal / Publication | Thin Solid Films |
Volume | 520 |
Issue number | 21 |
Online published | 6 Jul 2012 |
Publication status | Published - 31 Aug 2012 |
Externally published | Yes |
Link(s)
Abstract
Organic thin-film transistors (OTFTs) with high crystallization copper phthalocyanine (CuPc) active layers were fabricated by inserting an ultrathin pentacene buffer layer between the dielectric and CuPc layers. Comparing with the OTFTs without a pentacene buffer layer, the charge carrier mobility of the OTFT with a buffer layer presented a much higher value of ∼ 0.20 cm2/V s. Meanwhile, by investigating the morphology of the CuPc active layer with an ultrathin pentacene buffer layer through scanning electron microscopy and X-ray diffraction, the high crystallization of the CuPc film with a larger grain size and less grain boundaries can be observed. As a result, the resistance of the conducting channel was decreased, leading to a performance improvement of the OTFTs.
Research Area(s)
- Buffer layer, Copper phthalocyanine, Crystallization, Organic thin-film transistors, Pentacene
Citation Format(s)
Performance enhancement of organic thin-film transistors with improved copper phthalocyanine crystallization by inserting ultrathin pentacene buffer. / Huang, Wei; Yu, Junsheng; Yu, Xinge; Li, Yu; Zeng, Hongjuan.
In: Thin Solid Films, Vol. 520, No. 21, 31.08.2012, p. 6677-6680.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review