Carrier Concentration Dependent Conduction in Insulator-Doped Donor/Acceptor Chain Compounds
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- 作者：Masaki Nishio ; Norihisa Hoshino ; Wataru Kosaka ; Tomoyuki Akutagawa ; Hitoshi Miyasaka
- 刊名：Journal of the American Chemical Society
- 出版年：2013
- 出版时间：November 27, 2013
- 年：2013
- 卷：135
- 期：47
- 页码：17715-17718
- 全文大小：327K
- 年卷期：v.135,no.47(November 27, 2013)
- ISSN：1520-5126
文摘
On the basis of the concept that the design of a mixed valence system is a key route to create electronic conducting frameworks, we propose a unique idea to rationally produce mixed valency in an ionic donor/acceptor chain (i.e., D+A鈥?/sup> chain). The doping of a redox-inert (insulator) dopant (P) into a D+A鈥?/sup> chain in place of neutral D enables the creation of mixed valency A0/A鈥?/sup> domains between P units: P鈥?D+A鈥?/sup>)nA0鈥揚, where n is directly dependent on the dopant ratio, and charge transfer through the P units leads to electron transport along the framework. This hypothesis was experimentally demonstrated in an ionic DA chain synthesized from a redox-active paddlewheel [Ru2II,II] complex and TCNQ derivative by doping with a redox-inert [Rh2II,II] complex.