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dc.contributor.authorHuang, Yu-Chingen_US
dc.contributor.authorTsao, Cheng-Sien_US
dc.contributor.authorHuang, Tzu-Yenen_US
dc.contributor.authorCha, Hou-Chinen_US
dc.contributor.authorPatra, Dhananjayaen_US
dc.contributor.authorSu, Chun-Jenen_US
dc.contributor.authorJeng, U-Seren_US
dc.contributor.authorHo, Kuo-Chuanen_US
dc.contributor.authorWei, Kung-Hwaen_US
dc.contributor.authorChu, Chih-Weien_US
dc.date.accessioned2015-12-02T02:59:18Z-
dc.date.available2015-12-02T02:59:18Z-
dc.date.issued2015-07-23en_US
dc.identifier.issn1932-7447en_US
dc.identifier.urihttp://dx.doi.org/10.1021/acs.jpcc.5b05239en_US
dc.identifier.urihttp://hdl.handle.net/11536/128030-
dc.description.abstractIn this study we used simultaneous grazing-incidence small- and wide-angle X-ray scattering (GISAXS and GIWAXS, respectively) to probe the multilength-scale structures of thin active layers comprising the linear A-D-A-type pi-conjugated donor molecule TBDTCNR and the fullerene acceptor molecule PC61BM for use in solution-processed small-molecule-based organic solar cells (SMOSCs). We found that the pseudo-two-dimensional fractal-like networks in the bulk heterojunction (BHJ) structure were determined by mutual interactions between the small-molecule (SM) crystallites and the nanoscale PC61BM clusters during their formation and phase separation, and deduced quantitatively, at multiple length scales, the BHJ structures comprising these SM crystallites and PC61BM clusters. We also conducted in situ GIWAXS measurements to study the temporal behavior and kinetics of SM crystallization from solution to the solid film state. Our GISAXS/GIWAXS study revealed that the multilength-scale BHJ structures in the thin films could be tuned effectively by varying the amount of incorporated PC61BM and the annealing temperature. This study provides fundamental information relating to the mechanism of formation of hierarchical BHJ structures through relatively rapid crystallization of a highly crystalline SM, as well as the relationships among the hierarchical structure, the photovoltaic performance, and the mechanism of formation, thereby allowing greater control over BHJ structures in SMOSCs with optimized fabrication and performance.en_US
dc.language.isoen_USen_US
dc.titleQuantitative Characterization and Mechanism of Formation of Multilength-scale Bulk Heterojunction Structures in Highly Efficient Solution-Processed Small-Molecule Organic Solar Cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acs.jpcc.5b05239en_US
dc.identifier.journalJOURNAL OF PHYSICAL CHEMISTRY Cen_US
dc.citation.volume119en_US
dc.citation.issue29en_US
dc.citation.spage16507en_US
dc.citation.epage16517en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000358624000013en_US
dc.citation.woscount0en_US
Appears in Collections:Articles