Electrical Conductance of Conjugated Oligomers at the Single Molecule Level

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• 作者：Roman Huber ; Maria Teresa Gonzá ; lez ; Songmei Wu ; Michael Langer ; Sergio Grunder ; Viviana Horhoiu ; Marcel Mayor ; Martin R. Bryce ; Changsheng Wang ; Rukkiat Jitchati ; Christian Schö ; nenberger ; M
• 刊名：Journal of the American Chemical Society
• 出版年：2008
• 出版时间：January 23, 2008
• 年：2008
• 卷：130
• 期：3
• 页码：1080 - 1084
• 全文大小：166K
• 年卷期：v.130,no.3(January 23, 2008)
• ISSN：1520-5126

文摘

We determine and compare, at the single molecule level and under identical environmentalconditions, the electrical conductance of four conjugated phenylene oligomers comprising terminal sulfuranchor groups with simple structural and conjugation variations. The comparison shows that the conductanceof oligo(phenylene vinylene) (OPV) is slightly higher than that of oligo(phenylene ethynylene) (OPE). Wefind that solubilizing side groups do neither prevent the molecules from being anchored within a breakjunction nor noticeably influence the conductance value.