https://scholars.lib.ntu.edu.tw/handle/123456789/385382
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Kumar, D. | en_US |
dc.contributor.author | Justin Thomas, K.R. | en_US |
dc.contributor.author | Lee, C.-P. | en_US |
dc.contributor.author | Ho, K.-C. | en_US |
dc.contributor.author | KUO-CHUAN HO | en_US |
dc.creator | KUO-CHUAN HO;Ho, K.-C.;Lee, C.-P.;Justin Thomas, K.R.;Kumar, D. | - |
dc.date.accessioned | 2018-09-10T14:54:30Z | - |
dc.date.available | 2018-09-10T14:54:30Z | - |
dc.date.issued | 2014 | - |
dc.identifier.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-84898061297&partnerID=MN8TOARS | - |
dc.identifier.uri | http://scholars.lib.ntu.edu.tw/handle/123456789/385382 | - |
dc.description.abstract | New organic dyes containing fluorene functionalized with two imidazole chromophores as donors and cyanoacrylic acid acceptors have been synthesized and successfully demonstrated as sensitizers in nanocrystalline TiO 2-based dye-sensitized solar cells (DSSCs). The monoimidazole analogues were also synthesized for comparison. The Sommelet reaction of bromomethylated 2-bromo-9,9-diethyl-9H-fluorene produced the key precursor 7-bromo-9,9-diethyl-9H-fluorene-2,4-dicarbaldehyde required for the preparation of imidazole-functionalized fluorenes. Since the dyes possess weak donor segment, the electron-richness of the conjugation pathway dictated the optical, electrochemical, and photovoltaic properties of the dyes. The dyes served as sensitizers in DSSC and exhibited moderate efficiency up to 3.44%. The additional imidazole present on the fluorene has been found to retard the electron recombination due to the bulkier hydrophobic environment and led to high open-circuit voltage in the devices. © 2014 American Chemical Society. | - |
dc.language | en | en |
dc.relation.ispartof | Journal of Organic Chemistry | en_US |
dc.source | AH | - |
dc.subject.classification | [SDGs]SDG7 | - |
dc.subject.other | Chromophores; Open circuit voltage; Photoelectrochemical cells; Dye-Sensitized solar cell; Dye-sensitized solar cells; Electron recombinations; Functionalized; Hydrophobic environment; Nano-crystalline TiO; Organic dye; Photovoltaic property; Solar cells; acetonitrile; aldehyde derivative; cyanoacrylate; dichloromethane; dye; fluorene; imidazole derivative; n,n dimethylformamide; tetrahydrofuran; titanium dioxide; absorption spectroscopy; article; catalysis; complex formation; conjugation; electrical equipment; electrochemistry; electron; Knoevenagel condensation; light absorption; oxidation; Sonogashira reaction; Stille reaction; synthesis | - |
dc.title | Organic dyes containing fluorene decorated with imidazole units for dye-sensitized solar cells | - |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/jo500330r | - |
dc.relation.pages | 3159-3172 | - |
dc.relation.journalvolume | 79 | - |
dc.relation.journalissue | 7 | - |
item.openairetype | journal article | - |
item.fulltext | no fulltext | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
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 | - |
顯示於: | 化學工程學系 |
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