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Crystalline organic molecular thin film with electrical switching property: Scanning probe microscopy and optical spectroscopy study
Li, JC; Xue, ZQ; Wang, KZ; Wang, ZM; Yan, CH; Song, YL; Jiang, L; Zhu, DB
2004-12-16
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume108Issue:50Pages:19348-19353
AbstractWe report on the growth and characterization of crystalline 1, 1 -dicyano-2,2-(4-dimethylaminophenyl)ethylene (DDME) thin film with electrical switching property. X-ray diffraction analysis indicates that bulk singlecrystal DDME belongs to monoclinic, space group P2(1), and Z = 2 structure. Optical spectroscopy shows that the film chemical structure is consistent with that of the powder material, suggesting that DDME material is very stable during the vacuum thermal deposition process. Scanning probe microscopy and transmission electron microscopy observations reveal that the as-deposited film has extended crystal structure and smooth surface morphology in micrometer scale. Parallel molecular stacking structure is repeatedly observed in the film surfaces with the axis of the molecular stack parallel to the substrate. The ac crystal plane is found to be one of the most stable surfaces of the DDME film in ambient conditions. Nanometer scale data storage is realized on the film by applying pulse voltage between the STM tip and the substrate. The switching mechanism is briefly discussed.
DOI10.1021/jp047733g
Indexed BySCI
Language英语
WOS IDWOS:000225695100043
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82262
Collection中国科学院化学研究所
Corresponding AuthorLi, JC
Affiliation1.Peking Univ, Dept Elect, Beijing 100871, Peoples R China
2.Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
3.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Organ Solid Lab, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Li, JC,Xue, ZQ,Wang, KZ,et al. Crystalline organic molecular thin film with electrical switching property: Scanning probe microscopy and optical spectroscopy study[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2004,108(50):19348-19353.
APA Li, JC.,Xue, ZQ.,Wang, KZ.,Wang, ZM.,Yan, CH.,...&Zhu, DB.(2004).Crystalline organic molecular thin film with electrical switching property: Scanning probe microscopy and optical spectroscopy study.JOURNAL OF PHYSICAL CHEMISTRY B,108(50),19348-19353.
MLA Li, JC,et al."Crystalline organic molecular thin film with electrical switching property: Scanning probe microscopy and optical spectroscopy study".JOURNAL OF PHYSICAL CHEMISTRY B 108.50(2004):19348-19353.
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