Increased carrier mobility in end-functionalized oligosilanes.
نویسندگان
چکیده
We show that a class of oligosilane-arene σ, π-hybrid materials exhibits distinct and enhanced solid-state electronic properties relative to its parent components. In the single crystal structure, the σ-conjugation axis of one molecule points towards the π-face of a neighboring molecule due to an unusual gauche conformation. This organization is hypothesized to be beneficial for charge transport. We show that solution-deposited crystalline films of the hybrid materials show up to a 100-fold increase in space-charge limited current (SCLC) mobility relative to literature reports of photoinduced hole transport in oligosilane films. The discovery that σ, π-hybrids are more than the sum of their parts offers a design opportunity for new materials.
منابع مشابه
Increased carrier mobility in end-functionalized oligosilanes† †Electronic supplementary information (ESI) available: Synthetic procedures, tabulated characterization data, single crystal X-crystallography, differential scanning calorimetry thermograms, optical and force microscopy, optical and electronic characterization and device fabrication procedures. CCDC 1030984–1030987. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc03274h Click here for additional data file. Click here for additional data file.
Department of Chemistry, Johns Hopkins U MD 21218, USA. E-mail: [email protected] Department of Materials Science and Engin Charles St, Baltimore, MD 21218, USA † Electronic supplementary information tabulated characterization data, single scanning calorimetry thermograms, opti electronic characterization and devi 1030984–1030987. For ESI and crystallog format see DOI: 10.1039/c4sc03274h Cite thi...
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عنوان ژورنال:
- Chemical science
دوره 6 3 شماره
صفحات -
تاریخ انتشار 2015