Here we propose, for the first time, a new and green ethanol-thermal reaction method to synthesize highquality and pure thiophene–sulfur doped reduced graphene oxide (rGO), which establishes an excellent platform for studying sulfur (S) doping effects on the physical/chemical properties of this material. We have quantitatively demonstrated that the conductivity enhancement of thiophene–S doped rGO is not only caused by the more effective reduction induced by S doping, but also by the doped S atoms, themselves. Furthermore, we demonstrate that the S doping is more effective in enhancing conductivity of rGO than nitrogen (N) doping due to its stronger electron donor ability. Finally, the dye-sensitized solar cell (DSCC) employing the S-doped rGO/TiO₂ photoanode exhibits much better performance than undoped rGO/TiO₂, N-doped rGO/TiO₂ and TiO₂ photoanodes. It therefore seems promising for thiophene–S doped rGO to be widely used in electronic and optoelectronic devices.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:36294 |
| Date | 02 December 2019 |
| Creators | Wang, Zegao, Li, Pingjian, Chen, Yuanfu, He, Jiarui, Zhang, Wanli, Schmidt, Oliver G., Li, Yanrong |
| Publisher | Royal Society of Chemistry |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 2040-3372, 10.1039/c3nr05061k, info:eu-repo/grantAgreement/National Natural Science Foundation of China/Program for New Century Excellent Talents in University/51372033 /, info:eu-repo/grantAgreement/National Natural Science Foundation of China/Specialized Research Fund for the Doctoral Program of Higher Education of China/20120185120011/, info:eu-repo/grantAgreement/University of Electronic Science and Technology of China/Startup Research Project/Y02002010301041/, info:eu-repo/grantAgreement/National Natural Science Foundation of China/Program for New Century Excellent Talents in University/51202022//NCET, info:eu-repo/grantAgreement/National Natural Science Foundation of China/Program for New Century Excellent Talents in University/10-0291//NCET, info:eu-repo/grantAgreement/Minitry of Education China/111 Project/B13042/ |
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