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dc.contributor.authorChen, Shih-Chenen_US
dc.contributor.authorWu, Kaung-Hsiungen_US
dc.contributor.authorLi, Jia-Xingen_US
dc.contributor.authorYabushita, Atsushien_US
dc.contributor.authorTang, Shih-Hanen_US
dc.contributor.authorLuo, Chih Weien_US
dc.contributor.authorJuang, Jenh-Yihen_US
dc.contributor.authorKuo, Hao-Chungen_US
dc.contributor.authorChueh, Yu-Lunen_US
dc.date.accessioned2019-04-03T06:45:00Z-
dc.date.available2019-04-03T06:45:00Z-
dc.date.issued2015-12-18en_US
dc.identifier.issn2045-2322en_US
dc.identifier.urihttp://dx.doi.org/10.1038/srep18354en_US
dc.identifier.urihttp://hdl.handle.net/11536/129529-
dc.description.abstractIn this work, we demonstrated a viable experimental scheme for in-situ probing the effects of Au nanoparticles (NPs) incorporation on plasmonic energy transfer in Cu(In, Ga)Se-2 (CIGS) solar cells by elaborately analyzing the lifetimes and zero moment for hot carrier relaxation with ultrabroadband femtosecond pump-probe spectroscopy. The signals of enhanced photobleach (PB) and waned photoinduced absorption (PIA) attributable to surface plasmon resonance (SPR) of Au NPs were in-situ probed in transient differential absorption spectra. The results suggested that substantial carriers can be excited from ground state to lower excitation energy levels, which can reach thermalization much faster with the existence of SPR. Thus, direct electron transfer (DET) could be implemented to enhance the photocurrent of CIGS solar cells. Furthermore, based on the extracted hot carrier lifetimes, it was confirmed that the improved electrical transport might have been resulted primarily from the reduction in the surface recombination of photoinduced carriers through enhanced local electromagnetic field (LEMF). Finally, theoretical calculation for resonant energy transfer (RET)-induced enhancement in the probability of exciting electron-hole pairs was conducted and the results agreed well with the enhanced PB peak of transient differential absorption in plasmonic CIGS film. These results indicate that plasmonic energy transfer is a viable approach to boost high-efficiency CIGS solar cells.en_US
dc.language.isoen_USen_US
dc.titleIn-Situ Probing Plasmonic Energy Transfer in Cu(In, Ga)Se-2 Solar Cells by Ultrabroadband Femtosecond Pump-Probe Spectroscopyen_US
dc.typeArticleen_US
dc.identifier.doi10.1038/srep18354en_US
dc.identifier.journalSCIENTIFIC REPORTSen_US
dc.citation.volume5en_US
dc.citation.spage0en_US
dc.citation.epage0en_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.department光電工程研究所zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.contributor.departmentDepartment of Photonicsen_US
dc.contributor.departmentInstitute of EO Enginerringen_US
dc.identifier.wosnumberWOS:000367084400001en_US
dc.citation.woscount3en_US
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