Improving the ON/OFF Ratio and Reversibility of Recording by Rational Structural Arrangement of Donor-Acceptor Molecules

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	Improving the ON/OFF Ratio and Reversibility of Recording by Rational Structural Arrangement of Donor-Acceptor Molecules
	Ma, Y ; Cao, XB ; Li, G ; Wen, YQ ; Yang, Y ; Wang, JX ; Du, SX ; Yang, LM ; Gao, HJ ; Song, YL
刊名	ADVANCED FUNCTIONAL MATERIALS
	2010
卷号	20 期号:5 页码:803
关键词	SCANNING TUNNELING MICROSCOPE COMPLEX THIN-FILM CHARGE-TRANSFER ORGANIC-COMPLEX MEMORY DEVICES FUNCTIONAL POLYIMIDE CONJUGATED POLYMER DATA-STORAGE DENSITY POLY(N-VINYLCARBAZOLE)
ISSN号	1616-301X
通讯作者	Wen, YQ: Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, New Mat Lab,BNLMS, Beijing 100190, Peoples R China.
中文摘要	Organic molecules with donor-acceptor (D-A) structure are an important type of material for nanoelectronics and molecular electronics. The influence of the electron donor and acceptor units on the electrical function of materials is a worthy topic for the development of high-performance data storage. In this work, the effect of different D-A structures (namely D-pi-A-pi-D and A-pi-D-pi-A) on the electronic switching properties of triphenylamine-based molecules is investigated. Devices based on D-pi-A-pi-D molecules exhibit excellent write-read-erase characteristics with a high ON/OFF ratio of up to 10(6), while that based on A-pi-D-pi-A molecules exhibit irreversible switching behavior with an ON/OFF ratio of about (3.2 x 10(1))-(1 x 10(3)). Moreover, long retention time of the high conductance state and low threshold voltage are observed for the D-A switching materials. Accordingly, stable and reliable nanoscale data storage is achieved on the thin films of the D-A molecules by scanning tunneling microscopy. The influence of the arrangement of the D and A within the molecular backbone disclosed in this study will be of significance for improving the electronic switching properties (ON/OFF current ratio and reversibility) of new molecular systems, so as to achieve more efficient data storage through appropriate design strategies.
收录类别	SCI
资助信息	NSFC [50625312, 60601027, 20421101, U0634004]; 973 Program [2006CB806200, 2006CB932100, 2006CB921706, 2007CB936403, 2009CB930404]; Chinese Academy of Sciences
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/39680]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Ma, Y,Cao, XB,Li, G,et al. Improving the ON/OFF Ratio and Reversibility of Recording by Rational Structural Arrangement of Donor-Acceptor Molecules[J]. ADVANCED FUNCTIONAL MATERIALS,2010,20(5):803.
APA	Ma, Y.,Cao, XB.,Li, G.,Wen, YQ.,Yang, Y.,...&Song, YL.(2010).Improving the ON/OFF Ratio and Reversibility of Recording by Rational Structural Arrangement of Donor-Acceptor Molecules.ADVANCED FUNCTIONAL MATERIALS,20(5),803.
MLA	Ma, Y,et al."Improving the ON/OFF Ratio and Reversibility of Recording by Rational Structural Arrangement of Donor-Acceptor Molecules".ADVANCED FUNCTIONAL MATERIALS 20.5(2010):803.