完整後設資料紀錄
DC 欄位語言
dc.contributor.authorLee, Chia-Haoen_US
dc.contributor.authorLai, Yu-Yingen_US
dc.contributor.authorCao, Fong-Yien_US
dc.contributor.authorHsu, Jhih-Yangen_US
dc.contributor.authorLin, Zong-Liangen_US
dc.contributor.authorJeng, U-Seren_US
dc.contributor.authorSu, Chun-Jenen_US
dc.contributor.authorCheng, Yen-Juen_US
dc.date.accessioned2017-04-21T06:55:22Z-
dc.date.available2017-04-21T06:55:22Z-
dc.date.issued2016en_US
dc.identifier.issn2050-7526en_US
dc.identifier.urihttp://dx.doi.org/10.1039/c6tc04300cen_US
dc.identifier.urihttp://hdl.handle.net/11536/133012-
dc.description.abstractWe present a facile synthesis method to make a new ladder-type heptacyclic dithienobenzofluorene (DTBF) framework, where the central 2,7-fluorene unit is covalently fastened with two external thiophenes via two C=C bridges. A dieneyne-containing precursor undergoes DBU-induced double benzannulation to regiospecifically introduce two solubilizing 2-octyldodecyl side chains at 5,10-positions of DTBF. The rigid and coplanar Br-DTBF monomer with sufficient solubility was copolymerized with 5,6-difluoro-4,7-bis(5-(trimethylstannyl) thiophen-2-yl) benzo[c][1,2,5] thiadiazole (Sn-DTFBT) and 5,10-bis(5-(trimethylstannyl)thiophen-2-yl)naphtho[1,2-c: 5,6-c\'] bis([1,2,5] thiadiazole) (Sn-DTNT) via Stille coupling to furnish two donor-acceptor copolymers, PDTBFFBT and PDTBFNT, respectively. Their thermal, optical, electrochemical, molecular stacking and photovoltaic properties are investigated. PDTBFNT has a higher molecular weight, smaller optical and electrochemical band gaps, and stronger solid-state packing than PDTBFFBT. DFT calculations were carried out to gain insight into the electronic and structural properties of DTBF and its derivatives. Bulk heterojunction solar devices with the ITO/ZnO/polymers: PC71BM/MoO3/Ag configuration were fabricated. By adding 5 vol% diphenyl ether (DPE) as an additive, PDTBFNT: PC71BM and PDTBFFBT: PC71BM devices achieved the power conversion efficiencies of 5.22% and 2.68%, respectively. The superior efficiency of PDTBFNT over PDTBFFBT is attributed to the better LUMO energy alignment between PDTBFNT and PC71BM and the face-on p-stacking of PDTBFNT in the active layer. Moreover, PDTBFNT exhibited a higher field-effect transistor hole mobility of 1.90 x 10(-2) cm(2) V-1 s(-1) than PDTBFFBT with a value of 3.96 x 10(-3) cm(2) V-1 s(-1).en_US
dc.language.isoen_USen_US
dc.titleSynthesis, molecular and photovoltaic/transistor properties of heptacyclic ladder-type di(thienobenzo)fluorene-based copolymersen_US
dc.identifier.doi10.1039/c6tc04300cen_US
dc.identifier.journalJOURNAL OF MATERIALS CHEMISTRY Cen_US
dc.citation.volume4en_US
dc.citation.issue48en_US
dc.citation.spage11427en_US
dc.citation.epage11435en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000390787600009en_US
顯示於類別:期刊論文