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Pure thiophene–sulfur doped reduced graphene oxide: synthesis, structure, and electrical properties

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.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:36294
Date02 December 2019
CreatorsWang, Zegao, Li, Pingjian, Chen, Yuanfu, He, Jiarui, Zhang, Wanli, Schmidt, Oliver G., Li, Yanrong
PublisherRoyal Society of Chemistry
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text
Rightsinfo:eu-repo/semantics/openAccess
Relation2040-3372, 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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