TY - JOUR
T1 - Photoconductivity and photovoltaic effect of charge‐transfer complex of poly[4‐phenyl‐2,6‐(p‐phenoxy) quinoline] and 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone
AU - Choi, Donghoon
AU - Lee, Eun Ju
AU - Kim, Kyeong‐Ah ‐A
AU - Park, Soo Young
AU - Kim, Nakjoong
PY - 1993/11/20
Y1 - 1993/11/20
N2 - A new polymer containing a heterocyclic quinoline unit in the main chain, poly[4‐phenyl‐2,6‐(p‐phenoxy) quinoline] (PQ), was synthesized by an acid‐catalyzed self‐condensation reaction. We have found that PQ, which is generally a good insulator itself, can show photoconductivity when doped with an electron acceptor. From the UV‐VIS absorption spectra, we found that PQ can form a charge‐transfer (CT) complex with an electron acceptor, 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone (DDQ). The CT complex of the PQ‐DDQ mixture showed distinct photoconductivity. Employing the DDQ composition ranging from 5 to 10 wt %, the ratio of dark and photoconductivity was calculated to be about 1 : 100 at an applied electric field of 105 V/cm. Additionally, the bilayer sample of PQ/DDQ exhibited a significant photovoltaic effect. The photovoltaic current increased with increasing photointensity. The open‐circuit voltage was measured ranging from 0.4 to 0.7 V and the photovoltaic conversion efficiency was calculated to be 10−3−10−2%. The PQ film treated with DDQ vapor showed a relatively higher photovoltaic effect than that of the sample treated with DDQ solution. © 1993 John Wiley & Sons, Inc.
AB - A new polymer containing a heterocyclic quinoline unit in the main chain, poly[4‐phenyl‐2,6‐(p‐phenoxy) quinoline] (PQ), was synthesized by an acid‐catalyzed self‐condensation reaction. We have found that PQ, which is generally a good insulator itself, can show photoconductivity when doped with an electron acceptor. From the UV‐VIS absorption spectra, we found that PQ can form a charge‐transfer (CT) complex with an electron acceptor, 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone (DDQ). The CT complex of the PQ‐DDQ mixture showed distinct photoconductivity. Employing the DDQ composition ranging from 5 to 10 wt %, the ratio of dark and photoconductivity was calculated to be about 1 : 100 at an applied electric field of 105 V/cm. Additionally, the bilayer sample of PQ/DDQ exhibited a significant photovoltaic effect. The photovoltaic current increased with increasing photointensity. The open‐circuit voltage was measured ranging from 0.4 to 0.7 V and the photovoltaic conversion efficiency was calculated to be 10−3−10−2%. The PQ film treated with DDQ vapor showed a relatively higher photovoltaic effect than that of the sample treated with DDQ solution. © 1993 John Wiley & Sons, Inc.
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U2 - 10.1002/app.1993.070500814
DO - 10.1002/app.1993.070500814
M3 - Article
AN - SCOPUS:0027695222
VL - 50
SP - 1429
EP - 1433
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 8
ER -