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Isci, Recep; Wan, Li; Topal, Sebahat; Gunturkun, Dilara; Campbell, Alasdair James; Ozturk, Turan
{ "DOI": "10.1039/d2tc02371g", "abstract": "Two novel donor-pi-acceptor (D-pi-A)-type pull-push materials, M1 and M2, having triphenylamine as a donor and dimesitylboron as an acceptor, linked through a thieno[3,2-b]thiophene (TT) pi-conjugated spacer bearing different functional substituents, such as -PhCN and -Ph, were synthesized and fabricated via a solution process for OLED applications. They exhibited mega Stokes shifts of 120 nm and emissions both in the solid-state and in solution. The monomers M1 and M2 had strong intramolecular charge-transfer behaviors; the solid-state quantum yields were recorded to be 76 and 72% and the solution quantum efficiencies were determined to be 100 and 95%, respectively. The solution-processed OLEDs were fabricated using low turn-on voltages, which had performances with maximum power, current and external quantum efficiencies of around 8 lm W-1, 14.1 cd A(-1) and 4.78%, respectively, displaying emission colors from blue to green and yellowish green. The materials had strong fluorescence emission colors between yellowish and bluish under UV irradiation.", "author": [ { "family": "Isci", "given": " Recep" }, { "family": "Wan", "given": " Li" }, { "family": "Topal", "given": " Sebahat" }, { "family": "Gunturkun", "given": " Dilara" }, { "family": "Campbell", "given": " Alasdair James" }, { "family": "Ozturk", "given": " Turan" } ], "container_title": "JOURNAL OF MATERIALS CHEMISTRY C", "id": "252603", "issue": "29", "issued": { "date-parts": [ [ 2022, 1, 1 ] ] }, "page": "10719-10727", "title": "Solution-processable donor-pi-acceptor type thieno[3,2-b]thiophene derivatives; synthesis, photophysical properties and applications", "type": "article-journal", "volume": "10" }
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