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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ng, Tsz-Wai Lee, Chun-Sing Fung, Man-Keung Zhang, Wen-Jun Lo, Ming-Fai |
| Description | Author Affiliation: Ng TW ( Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, P. R. China) |
| Abstract | Charge transfer and interactions at organic heterojunctions (OHJs) are known to have critical influences on various properties of organic electronic devices. In this Research News article, a short review is given from the electronic viewpoint on how the local molecular interactions and interfacial energetics at P/N OHJs contribute to the recombination/dissociation of electron-hole pairs. Very often, the P-type materials donate electrons to the N-type materials, giving rise to charge-transfer complexes (CTCs) with a P(δ+) -N(δ-) configuration. A recently observed opposite charge-transfer direction in OHJs is also discussed (i.e., N-type material donates electrons to P-type material to form P(δ-) -N(δ+) ). Recent studies on the electronic structures of CTC-forming material pairs are also summarized. The formation of P(δ-) -N(δ+) -type CTCs and their correlations with exciplex emission are examined. Furthermore, the potential applications of CTCs in NIR photovoltaic devices are reviewed. |
| ISSN | 09359648 |
| Issue Number | 31 |
| Journal | Advanced Materials |
| Volume Number | 26 |
| e-ISSN | 15214095 |
| Language | English |
| Publisher | Wiley-VCH |
| Publisher Date | 2014-08-20 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering |
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