Length enhancement of thermoelectric effects in DNA duplex chains due to quantum interferences
| Autor: | Yushen Liu, Xue-Mei Wu, Xue-Feng Wang, Yao-Jun Dong |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Dna duplex
Materials science Condensed matter physics Charge (physics) General Chemistry Condensed Matter Physics Electronic Optical and Magnetic Materials Biomaterials Seebeck coefficient Thermoelectric effect Materials Chemistry Figure of merit Molecule Electrical and Electronic Engineering Constant (mathematics) Quantum |
| Zdroj: | Organic Electronics. 26:176-180 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2015.07.043 |
| Popis: | The thermoelectric performance of DNA duplex chains (G:C)–(T:A)n–(G:C)3 is studied by a tight-binding ladder model. The quantum interferences due to intra- and inter-strand couplings can greatly enhance the thermopower effect in long systems. The peak value of Seebeck coefficient increases exponentially with n while the charge transfer rate remains almost constant for n > 3 as previously measured. Big figure of merit (ZT) might be available for large n. This result is applicable to other wire molecules having similar structure. |
| Databáze: | OpenAIRE |
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