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dc.contributor.authorEck, Michael-
dc.contributor.authorVan Pham, Chuyen-
dc.contributor.authorZüfle, Simon-
dc.contributor.authorNeukom, Martin-
dc.contributor.authorSessler, Martin-
dc.contributor.authorScheunemann, Dorothea-
dc.contributor.authorErdem, Emre-
dc.contributor.authorWeber, Stefan-
dc.contributor.authorBorchert, Holger-
dc.contributor.authorRuhstaller, Beat-
dc.contributor.authorKrüger, Michael-
dc.date.accessioned2018-06-15T11:51:08Z-
dc.date.available2018-06-15T11:51:08Z-
dc.date.issued2014-
dc.identifier.issn1463-9076de_CH
dc.identifier.issn1463-9084de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/6932-
dc.description.abstractWe present a significant efficiency enhancement of hybrid bulk heterojunction solar cells by utilizing CdSe quantum dots attached to reduced graphene oxide (rGO) as the electron accepting phase, blended with the PCPDTBT polymer. The quantum dot attachment to rGO was achieved following a self-assembly approach, recently developed, using thiolated reduced graphene oxide (TrGO) to form a TrGO–CdSe nanocomposite. Therefore, we are able to obtain TrGO–CdSe quantum dot/PCPDTBT bulk-heterojunction hybrid solar cells with power conversion efficiencies of up to 4.2%, compared with up to 3% for CdSe quantum dot/PCPDTBT devices. The improvement is mainly due to an increase of the open-circuit voltage from 0.55 V to 0.72 V. We found evidence for a significant change in the heterojunction donor–acceptor blend nanomorphology, observable by a more vertical alignment of the TrGO-quantum dot nanocomposites in the z-direction and a different nanophase separation in the x–y direction compared to the quantum dot only containing device. Moreover, an improved charge extraction and trap state reduction were observed for TrGO containing hybrid solar cells.de_CH
dc.language.isoende_CH
dc.publisherRoyal Society of Chemistryde_CH
dc.relation.ispartofPhysical Chemistry Chemical Physicsde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleImproved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot–graphene nanocompositesde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1039/c4cp01566ede_CH
zhaw.funding.euNode_CH
zhaw.issue24de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end12260de_CH
zhaw.pages.start12251de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume16de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Eck, M., Van Pham, C., Züfle, S., Neukom, M., Sessler, M., Scheunemann, D., Erdem, E., Weber, S., Borchert, H., Ruhstaller, B., & Krüger, M. (2014). Improved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot–graphene nanocomposites. Physical Chemistry Chemical Physics, 16(24), 12251–12260. https://doi.org/10.1039/c4cp01566e
Eck, M. et al. (2014) ‘Improved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot–graphene nanocomposites’, Physical Chemistry Chemical Physics, 16(24), pp. 12251–12260. Available at: https://doi.org/10.1039/c4cp01566e.
M. Eck et al., “Improved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot–graphene nanocomposites,” Physical Chemistry Chemical Physics, vol. 16, no. 24, pp. 12251–12260, 2014, doi: 10.1039/c4cp01566e.
ECK, Michael, Chuyen VAN PHAM, Simon ZÜFLE, Martin NEUKOM, Martin SESSLER, Dorothea SCHEUNEMANN, Emre ERDEM, Stefan WEBER, Holger BORCHERT, Beat RUHSTALLER und Michael KRÜGER, 2014. Improved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot–graphene nanocomposites. Physical Chemistry Chemical Physics. 2014. Bd. 16, Nr. 24, S. 12251–12260. DOI 10.1039/c4cp01566e
Eck, Michael, Chuyen Van Pham, Simon Züfle, Martin Neukom, Martin Sessler, Dorothea Scheunemann, Emre Erdem, et al. 2014. “Improved Efficiency of Bulk Heterojunction Hybrid Solar Cells by Utilizing CdSe Quantum Dot–Graphene Nanocomposites.” Physical Chemistry Chemical Physics 16 (24): 12251–60. https://doi.org/10.1039/c4cp01566e.
Eck, Michael, et al. “Improved Efficiency of Bulk Heterojunction Hybrid Solar Cells by Utilizing CdSe Quantum Dot–Graphene Nanocomposites.” Physical Chemistry Chemical Physics, vol. 16, no. 24, 2014, pp. 12251–60, https://doi.org/10.1039/c4cp01566e.


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