https://scholars.lib.ntu.edu.tw/handle/123456789/408705
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ezhumalai Y. | en_US |
dc.contributor.author | Lee B. | en_US |
dc.contributor.author | Fan M.-S. | en_US |
dc.contributor.author | Harutyunyan B. | en_US |
dc.contributor.author | Prabakaran K. | en_US |
dc.contributor.author | Lee C.-P. | en_US |
dc.contributor.author | Chang S.H. | en_US |
dc.contributor.author | Ni J.-S. | en_US |
dc.contributor.author | Vegiraju S. | en_US |
dc.contributor.author | Priyanka P. | en_US |
dc.contributor.author | Wu Y.-W. | en_US |
dc.contributor.author | Liu C.-W. | en_US |
dc.contributor.author | Yau S. | en_US |
dc.contributor.author | Lin J.T. | en_US |
dc.contributor.author | Wu C.-G. | en_US |
dc.contributor.author | Bedzyk M.J. | en_US |
dc.contributor.author | Chang R.P.H. | en_US |
dc.contributor.author | Chen M.-C. | en_US |
dc.contributor.author | Ho K.-C. | en_US |
dc.contributor.author | Marks T.J. | en_US |
dc.creator | Marks T.J.;Chen M.-C.;Chang R.P.H.;Bedzyk M.J.;Wu C.-G.;Lin J.T.;Yau S.;Liu C.-W.;Wu Y.-W.;Priyanka P.;Vegiraju S.;Ni J.-S.;Chang S.H.;Lee C.-P.;Prabakaran K.;Harutyunyan B.;Fan M.-S.;Lee B.;Ezhumalai Y.;Ho K.-C. | - |
dc.date.accessioned | 2019-05-17T00:50:42Z | - |
dc.date.available | 2019-05-17T00:50:42Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 20507488 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/408705 | - |
dc.description.abstract | A new series of metal-free alkylated tetrathienoacene (TTAR)-based organic chromophores, TPA-TTAR-TA (R = branched-C8H17, 1, TTAR-b8; R = C15H31, 2, TTAR-15; R = C9H19, 3, TTAR-9), are synthesized for application in dye-sensitized solar cells (DSSCs). Due to the extensively conjugated TTAR £k-bridge, all three dyes exhibit high extinction coefficients (1 ¡Ñ 105 M-1 cm-1). By systematically exploring the effects of the TTAR alkyl chain substituents, a significant influence of the dye coverage (orientation) on the TiO2 surfaces is observed. The branched-alkyl TTAR-b8 (1) promotes significant tilting and packing distortion on TiO2 in comparison to more ordered monolayers of linear long alkyls TTAR-15 (2) and TTAR-9 (3). Photophysical measurements on the dye-grafted TiO2 films reveal that the branched-alkylated TTA unit in 1 enhances the electron injection efficiency, in agreement with the high quantum efficiency. Notably, by utilizing a three-dimensional (3D) photonic crystal (PhC) layer to enhance the coherent scattering an increase the light absorption, TTAR-b8 exhibits higher short-circuit current densities and achieved a high PCE of 11.18%. TTAR-b8 is thus the best performing fused-thiophene-based organic DSSC dye reported to date. ? 2017 The Royal Society of Chemistry. | - |
dc.language | English | - |
dc.relation.ispartof | Journal of Materials Chemistry A | en_US |
dc.title | Metal-free branched alkyl tetrathienoacene (TTAR)-based sensitizers for high-performance dye-sensitized solar cells | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1039/c7ta01825h | - |
dc.identifier.scopus | 2-s2.0-85021661054 | - |
dc.identifier.url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021661054&doi=10.1039%2fc7ta01825h&partnerID=40&md5=4ec0215f50482d66e86af5ad18b65247 | - |
dc.relation.pages | 12310-12321 | - |
dc.relation.journalvolume | 5 | - |
dc.relation.journalissue | 24 | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Chemical Engineering | - |
crisitem.author.dept | Polymer Science and Engineering | - |
crisitem.author.orcid | 0000-0001-7501-1271 | - |
crisitem.author.parentorg | College of Engineering | - |
crisitem.author.parentorg | College of Engineering | - |
Appears in Collections: | 化學工程學系 |
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