| ชื่อเรื่อง | : | Time-resolved terahertz spectroscopy of conjugated polymer/CdSe nanorod composites |
| นักวิจัย | : | Cooke, David G. , Lek, Jun Y. , Krebs, Frederik C. , Lam, Yeng Ming , Jepsen, Peter Uhd |
| คำค้น | : | DRNTU::Engineering::Materials. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2553 |
| อ้างอิง | : | Cooke, D. G., Lek, J. Y., Krebs, F. C., Lam, Y. M. & Jepsen, P. U. (2010). Time-resolved terahertz spectroscopy of conjugated polymer/CdSe nanorod composites. Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV, 7600, 76000H-. , http://hdl.handle.net/10220/18846 , http://dx.doi.org/10.1117/12.840010 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | We report ultrafast carrier dynamics in hybrid CdSe nanorod / poly(3-hexythiophene) (P3HT) bulk heterojunction films measured by time-resolved terahertz spectroscopy, and compare to the well studied P3HT/phenyl-C61-butyric acid methyl ester (PCBM) blend. Both films show an improved peak photoconductivity compared to P3HT alone, consistent with efficient charge transfer. The photoconductivity dynamics show fast, picosecond trapping or recombination in the hybrid blend while the all-organic film shows no such loss of mobile charge over ns time scales. The ac conductivity for all samples is well described by a Kramers-Kronig compatible Jonscher-type power law with exponent between 0.5 and 1 suggesting that interchain hopping in the polymer or between nanorods occurs at frequencies higher than 3 THz immediately after photoexcitation. |
| บรรณานุกรม | : |
Cooke, David G. , Lek, Jun Y. , Krebs, Frederik C. , Lam, Yeng Ming , Jepsen, Peter Uhd . (2553). Time-resolved terahertz spectroscopy of conjugated polymer/CdSe nanorod composites.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Cooke, David G. , Lek, Jun Y. , Krebs, Frederik C. , Lam, Yeng Ming , Jepsen, Peter Uhd . 2553. "Time-resolved terahertz spectroscopy of conjugated polymer/CdSe nanorod composites".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Cooke, David G. , Lek, Jun Y. , Krebs, Frederik C. , Lam, Yeng Ming , Jepsen, Peter Uhd . "Time-resolved terahertz spectroscopy of conjugated polymer/CdSe nanorod composites."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2553. Print. Cooke, David G. , Lek, Jun Y. , Krebs, Frederik C. , Lam, Yeng Ming , Jepsen, Peter Uhd . Time-resolved terahertz spectroscopy of conjugated polymer/CdSe nanorod composites. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2553.
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