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  • Zhu, Nan (author)

Sandwiched confinement of quantum dots in graphene matrix for efficient electron transfer and photocurrent production.

  • Article/chapterEnglish2015

Publisher, publication year, extent ...

  • 2015-05-21
  • Springer Science and Business Media LLC,2015

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:e66a35b3-1fc2-4db1-9a21-6089c1f05206
  • https://lup.lub.lu.se/record/5442718URI
  • https://doi.org/10.1038/srep09860DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Quantum dots (QDs) and graphene are both promising materials for the development of new-generation optoelectronic devices. Towards this end, synergic assembly of these two building blocks is a key step but remains a challenge. Here, we show a one-step strategy for organizing QDs in a graphene matrix via interfacial self-assembly, leading to the formation of sandwiched hybrid QD-graphene nanofilms. We have explored structural features, electron transfer kinetics and photocurrent generation capacity of such hybrid nanofilms using a wide variety of advanced techniques. Graphene nanosheets interlink QDs and significantly improve electronic coupling, resulting in fast electron transfer from photoexcited QDs to graphene with a rate constant of 1.3 × 10(9) s(-1). Efficient electron transfer dramatically enhances photocurrent generation in a liquid-junction QD-sensitized solar cell where the hybrid nanofilm acts as a photoanode. We thereby demonstrate a cost-effective method to construct large-area QD-graphene hybrid nanofilms with straightforward scale-up potential for optoelectronic applications.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Zheng, KaiboLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-kbz (author)
  • Karki, Khadga JungLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-kdk (author)
  • Qenawy, MohamedLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-mea (author)
  • Zhu, QiushiLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-qzu (author)
  • Carlson, StefanLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)inor-sca (author)
  • Haase, DörtheLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-deh (author)
  • Zidek, KarelLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-kzd (author)
  • Ulstrup, Jens (author)
  • Canton, SophieLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)chem-sca (author)
  • Pullerits, TönuLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chph-tp (author)
  • Chi, Qijin (author)
  • Kemisk fysikEnheten för fysikalisk och teoretisk kemi (creator_code:org_t)

Related titles

  • In:Scientific Reports: Springer Science and Business Media LLC52045-2322

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