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dc.contributor.authorLiao, Yu-Kuangen_US
dc.contributor.authorBrossard, Maelen_US
dc.contributor.authorHsieh, Dan-Huaen_US
dc.contributor.authorLin, Tzu-Nengen_US
dc.contributor.authorCharlton, Martin D. B.en_US
dc.contributor.authorCheng, Shun-Jenen_US
dc.contributor.authorChen, Chyong-Huaen_US
dc.contributor.authorShen, Ji-Linen_US
dc.contributor.authorCheng, Lung-Tengen_US
dc.contributor.authorHsieh, Tung-Poen_US
dc.contributor.authorLai, Fang-Ien_US
dc.contributor.authorKuo, Shou-Yien_US
dc.contributor.authorKuo, Hao-Chungen_US
dc.contributor.authorSavvidis, Pavlos G.en_US
dc.contributor.authorLagoudakis, Pavlos G.en_US
dc.date.accessioned2015-07-21T08:28:47Z-
dc.date.available2015-07-21T08:28:47Z-
dc.date.issued2015-01-21en_US
dc.identifier.issn1614-6832en_US
dc.identifier.urihttp://dx.doi.org/10.1002/aenm.201401280en_US
dc.identifier.urihttp://hdl.handle.net/11536/124375-
dc.description.abstractA novel scheme for hybridizing inkjet-printed thin film Cu(In,Ga)Se-2 (CIGS) solar cells with self-assembled clusters of nanocrystal quantum dots (NQDs), which provides a 10.9% relative enhancement of the photon conversion efficiency (PCE), is demonstrated. A non-uniform layer of NQD aggregates is deposited between the transparent conductive oxide and a CdS/CIGS p-n junction using low cost pulsed-spray deposition. Hybridization significantly improves the external quantum efficiency of the hybrid devices in the absorption range of the NQDs and in the red to near-IR parts of the spectrum. The low wavelength response enhancement is found to be induced by luminescent down-shifting (LDS) from the NQD layer, while the increase at longer wavelengths is attributed to internal scattering from NQD aggregates. LDS is demonstrated using time-resolved spectroscopy, and the morphology of the NQD layer is investigated in fluorescence microscopy and cross-sectional transmission electron microscopy. The influence of the NQD dose on the PCE of the hybrid devices is investigated and an optimum value is obtained. The low costs and limited material consumptions associated with pulsed-spray deposition make these flexible hybrid devices promising candidates to help push thin-film photovoltaic technology towards grid parity.en_US
dc.language.isoen_USen_US
dc.subjectscatteringen_US
dc.subjectluminescent down shiftingen_US
dc.subjectnanocrystal quantum dotsen_US
dc.subjecthybrid photonicsen_US
dc.titleHighly Efficient Flexible Hybrid Nanocrystal-Cu(In,Ga)Se-2 (CIGS) Solar Cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/aenm.201401280en_US
dc.identifier.journalADVANCED ENERGY MATERIALSen_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000348772600016en_US
dc.citation.woscount0en_US
Appears in Collections:Articles