期刊
SOLAR RRL
卷 1, 期 8, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.201700043
关键词
hybrid solar cell; organic solar cell; quantum dot; single wall carbon nanotube
资金
- Cluster of Excellence Engineering of Advanced Materials (EAM) at the University of Erlangen-Nuremberg - German Research Foundation within the framework of its Excellence Initiative
- Iranian Ministry of Science Research and Technology
- Synthetic Carbon Allotropes [SFB953]
- Solar Technologies go Hybrid (SolTech)
- Bavarian Equal Opportunities Sponsorship - Forderung von Frauen in Forschung und Lehre (FFL)
- Research Training Group 1896 In-Situ Microscopy with Electrons, X-rays, and Scanning Probes
- Solar Technologies go Hybrid (SolTech) project from Bavarian Ministry of Science
- Aufbruch Bayern initiative of the state of Bavaria
- Osterreichische Forschungsforderungsgesellschaft FFG [843598]
- European Research Council via the Marie-Sklodowska Curie action Phonsi [H2020-MSCA-ITN-642656]
In the present work, a new solution processed nanohybrid system comprising of single-wall carbon nanotubes (SWCNTs) loaded by PbS quantum dots (QD) capped with an epitaxial ligand shell of methylammonium lead iodide perovskite clusters (MA(4)PbI(6)) is designed and fabricated. Attachment of PbS/PbI6 QDs on the surface of SWCNT is followed and evidenced by performing Fourier Transform Infrared Spectroscopy, X-ray photoelectron spectroscopy, and Field Emission Scanning Electron Microscopy. The steady state and dynamic photoluminescence results reveal efficient charge transfer from photo-excited PbS/PbI6 to SWCNTs. Very low amount (0.3 wt.%) of the as-synthesized PbS/PbI6-SWCNT is further incorporated into a polymeric solar cell containing P3HT and PC61BM and exhibits a power conversion efficiency improvement of around 15% compared to the P3HT:PC61BM bulk heterojunction reference solar cell. Significantly, loading perovskite capped PbS QDs on the surface of SWCNT works more efficient rather than incorporating PbS/PbI6 or SWCNT separately onto the composition of the photoactive layer. While PbS/PbI6 broaden the absorption window of photoactive layer and enhance the photon harvesting, their loading on the SWCNT has a significant influence on the faster exciton splitting by efficient electron transfer as well as keeping the desired crystallinity and nanoscale morphology of host matrix upon addition of QDs.
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