TY - JOUR
T1 - Synthesis and characterization of an anthracene-based low band gap polymer for photovoltaic devices
AU - Jung, In Hwan
AU - Kim, Hoyeon
AU - Lee, Wonho
AU - Jung, Byung Jun
AU - Woo, Han Young
AU - Yoo, Seunghyup
AU - Shim, Hong Ku
PY - 2014/1/1
Y1 - 2014/1/1
N2 - We have synthesized an anthracene-based conjugated polymer, poly[(9,10-bis(oct-1-ynyl) anthracene)-alt-(5,6-bis(octyloxy)-4,7-bis(thiophen- 2-yl)benzo-[c][1,2,5]-thiadiazole)] (PANTBT), for application in organic photovoltaic devices. It exhibited a number average molecular weight of 14,300 g/mol and was fairly soluble in ch lilorinated organic solven ts due to flexible octynyl- and octy-loxy side chains on the P a nthracene and benzoth iadiazole moieties. P ANTBT showed absorption covering 300-660 nm. Through the bond alternation betwee ifn the electron-sufficient anthracene (and thiophene) and electron-deficient benzothiadiazole units, a band gap of PANTBT was decreased to 1.89 eV, showing a deep HOMO level of -5.31 eV. As a result, PANTBT exhibited promising photovoltaic properties with a PCE value of 1.90% (Voc = 0.77 V, Jsc = -6.50 mA/cm2, FF = 0.38) upon blending with PC71BM under AM 1.5G.
AB - We have synthesized an anthracene-based conjugated polymer, poly[(9,10-bis(oct-1-ynyl) anthracene)-alt-(5,6-bis(octyloxy)-4,7-bis(thiophen- 2-yl)benzo-[c][1,2,5]-thiadiazole)] (PANTBT), for application in organic photovoltaic devices. It exhibited a number average molecular weight of 14,300 g/mol and was fairly soluble in ch lilorinated organic solven ts due to flexible octynyl- and octy-loxy side chains on the P a nthracene and benzoth iadiazole moieties. P ANTBT showed absorption covering 300-660 nm. Through the bond alternation betwee ifn the electron-sufficient anthracene (and thiophene) and electron-deficient benzothiadiazole units, a band gap of PANTBT was decreased to 1.89 eV, showing a deep HOMO level of -5.31 eV. As a result, PANTBT exhibited promising photovoltaic properties with a PCE value of 1.90% (Voc = 0.77 V, Jsc = -6.50 mA/cm2, FF = 0.38) upon blending with PC71BM under AM 1.5G.
KW - Anthracene
KW - Benzothiadiazole
KW - Conjugated polymers
KW - Photovoltaics
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U2 - 10.1166/jnn.2014.8788
DO - 10.1166/jnn.2014.8788
M3 - Article
C2 - 25936129
AN - SCOPUS:84906561532
VL - 14
SP - 6422
EP - 6426
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
SN - 1533-4880
IS - 8
ER -