Organic thin-film transistors with improved characteristics using lutetium bisphthalocyanine as a buffer layer

doi:10.1063/1.1840093

CORC > 化学研究所 > 中国科学院化学研究所

	Organic thin-film transistors with improved characteristics using lutetium bisphthalocyanine as a buffer layer
	Wang, J; Wang, HB; Zhang, J; Yan, XJ; Yan, DH
刊名	JOURNAL OF APPLIED PHYSICS
	2005-01-15
卷号	97 期号:2
ISSN号	0021-8979
DOI	10.1063/1.1840093
英文摘要	Organic thin-film transistors (OTFTs) with a buffer layer sandwiched between source/drain electrodes and organic semiconductor are demonstrated. An intrinsic molecular semiconductor, Lutetium bisphthalocyanine (LuPc2), is used as the buffer layer due to its high carrier density (10(16) cm(3)). Compared with conventional OTFTs, the introduction of the buffer layer leads to on-state current increases from 700 nA to 2.5 muA, field-effect mobility increases from 0.7x10(-2) to 1.58x10(-2) cm(2)/V s, and threshold voltage downshifts from -21 to -11 V for the linear region. The on/off current ratio is improved to a level of 10(4). Mechanisms of performance improvement are attributed to include the difference of the Fermi level and interface dipolar between LuPc2 and Au. Our results demonstrate that it is an effective method to improve linear region characteristics by using a molecular semiconductor as the buffer layer. (C) 2005 American Institute of Physics.
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000226700500114
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/56007]
专题	中国科学院化学研究所
通讯作者	Wang, J
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Wang, J,Wang, HB,Zhang, J,et al. Organic thin-film transistors with improved characteristics using lutetium bisphthalocyanine as a buffer layer[J]. JOURNAL OF APPLIED PHYSICS,2005,97(2).
APA	Wang, J,Wang, HB,Zhang, J,Yan, XJ,&Yan, DH.(2005).Organic thin-film transistors with improved characteristics using lutetium bisphthalocyanine as a buffer layer.JOURNAL OF APPLIED PHYSICS,97(2).
MLA	Wang, J,et al."Organic thin-film transistors with improved characteristics using lutetium bisphthalocyanine as a buffer layer".JOURNAL OF APPLIED PHYSICS 97.2(2005).