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Phenanthro[110,9,8-cdefg]carbazole-Thiophene, Donor–Donor Copolymer for Narrow Band Green-Selective Organic Photodiode

Title
Phenanthro[110,9,8-cdefg]carbazole-Thiophene, Donor–Donor Copolymer for Narrow Band Green-Selective Organic Photodiode
Authors
Sung, Min JaeKim, KyounghwanKwon, Soon-KiKim, Yun-HiChung, Dae Sung
DGIST Authors
Kim, Kyounghwan; Chung, Dae Sung
Issue Date
2017-07
Citation
Journal of Physical Chemistry C, 121(29), 15931-15936
Type
Article
Article Type
Article
Keywords
Atmospheric ConditionsBandwidthConjugated PolymersDevicesDonor AcceptorsDonor MaterialsEfficiencyFluorescence DetectionHigh ResponsivityIntermolecular InteractionsLinear Dynamic RangesOrganic PhotodiodesPerformancePhotodetectorPhotodiodesPhotophysicalPolycyclic Aromatic HydrocarbonsPolymer Solar Cells (PSCs)Selective AbsorptionThiophene
ISSN
1932-7447
Abstract
A new donor-donor copolymer consisting of phenanthro[1,10,9,8-cdefg]carbazole and thiophene unit (PP-Th) was synthesized for narrow band green-selective organic photodiode application. Thanks to well-defined intramolecular conjugation and inhibited intermolecular interaction of PP-Th compared to its donor-acceptor type analogues, PP-Th revealed narrow band green-selective absorption peak at 510 nm with low full width at half-maximum value of 98 nm. In addition, deep ionization energy of PP-Th, as confirmed by photophysical analyses, made it less susceptible to oxidational degradation. Green-selective organic photodiodes (OPDs) were fabricated utilizing PP-Th as a green absorbing donor material and ZnO as a nonabsorbing acceptor material. The optimized OPD rendered a very low dark current of 2 nA cm-2 and a high detectivity of 1.42 × 1012 Jones with narrow band green-selectivity. Moreover, PP-Th enabled OPD with a high 3-dB bandwidth of 3.1 kHz and a high linear dynamic range of 84.9 dB. Furthermore, the responsivity of the OPD could be maintained for more than 30 days under atmospheric condition, revealing excellent stability of PP-Th. © 2017 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/4723
DOI
10.1021/acs.jpcc.7b04793
Publisher
American Chemical Society
Related Researcher
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Collection:
Energy Science and EngineeringETC1. Journal Articles
ETC1. Journal Articles


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