Thermally Activated Tunneling Transition in a Photoswitchable Single-Molecule Electrical Junction

	Thermally Activated Tunneling Transition in a Photoswitchable Single-Molecule Electrical Junction
	Xin, Na 1; Jia, Chuancheng 1,2; Wang, Jinying 1; Wang, Shuopei 3; Li, Mingliang 1; Gong, Yao 1; Zhang, Guangyu 3; Zhu, Daoben 2; Guo, Xuefeng 1,4
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2017-07-06
卷号	8 期号:13 页码:2849-2854
英文摘要	Exploring the charge transport process in molecular junctions is essential to the development of molecular electronics. Here, we investigate the temperature-dependent charge transport mechanism of carbon electrode-diarylethene single-molecule junctions, which possess photocontrollable molecular orbital energy levels due to reversible photoisomerization of individual diarylethenes between open and closed conformations. Both the experimental results and theoretical calculations consistently demonstrate that the vibronic coupling (thermally activated at the proper temperature) drives the transition of charge transport in the junctions from coherent tunneling to incoherent transport. Due to the subtle electron phonon coupling effect, incoherent transport in the junctions proves to have different activation energies, depending on the photoswitchable molecular energy levels of two different conformations. These results improve fundamental understanding of charge transport mechanisms in molecular junctions and should lead to the rapid development of functional molecular devices toward practical applications.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38988]
专题	化学研究所_有机固体实验室
作者单位	1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 4.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Xin, Na,Jia, Chuancheng,Wang, Jinying,et al. Thermally Activated Tunneling Transition in a Photoswitchable Single-Molecule Electrical Junction[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2017,8(13):2849-2854.
APA	Xin, Na.,Jia, Chuancheng.,Wang, Jinying.,Wang, Shuopei.,Li, Mingliang.,...&Guo, Xuefeng.(2017).Thermally Activated Tunneling Transition in a Photoswitchable Single-Molecule Electrical Junction.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,8(13),2849-2854.
MLA	Xin, Na,et al."Thermally Activated Tunneling Transition in a Photoswitchable Single-Molecule Electrical Junction".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 8.13(2017):2849-2854.