New alkylselenyl substituted benzodithiophene-based solution-processable 2D π-conjugated polymers for bulk heterojunction polymer solar cell applications

被引：28

作者：

Chakravarthi, Nallan ^{[1
,2
]}

Kranthiraja, Kakaraparthi ^{[1
,2
]}

Song, Myungkwan ^{[3
]}

Gunasekar, Kumarasamy ^{[1
,2
]}

Jeong, Pyeongsu ^{[4
]}

Moon, Sang-Jin ^{[4
]}

Shin, Won Suk ^{[4
]}

Kang, In-Nam ^{[5
]}

Lee, Jae Wook ^{[6
]}

Jin, Sung-Ho ^{[1
,2
]}

机构：

[1] Pusan Natl Univ, Dept Chem Educ, Grad Dept Chem Mat, Pusan 609735, South Korea

[2] Pusan Natl Univ, Inst Plast Informat & Energy Mat, Pusan 609735, South Korea

[3] Korea Inst Mat Sci, Surface Technol Div, Chang Won 641831, South Korea

[4] Korea Res Inst Chem Technol, Energy Mat Res Ctr, Taejon 305600, South Korea

[5] Catholic Univ Korea, Dept Chem, Puchon, South Korea

[6] Dong A Univ, Dept Chem, Pusan 604714, South Korea

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2014年 / 122卷

基金：

新加坡国家研究基金会;

关键词：

Additive; Bulk heterojunction polymer solar cells; Field effect transistors; Morphology; POWER CONVERSION EFFICIENCY; OPEN-CIRCUIT VOLTAGE; BAND-GAP COPOLYMERS; ORGANIC PHOTOVOLTAICS; CONDUCTING POLYMERS; MOLECULAR-WEIGHT; PERFORMANCE; DEVICES; DIKETOPYRROLOPYRROLE; BENZOTHIADIAZOLE;

D O I：

10.1016/j.solmat.2013.11.019

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

We have introduced 2-ethylhexylselenophene as a side chain substituent on benzodithiophene (BDT) unit, where the selenophene ring is attached to 4th and 8th positions of the phenyl ring in BDT to obtain BDTSe as an electron rich moiety. A new bisbenzothiadazole (BBT) derivative was also synthesized namely, 3,3'-diheptyl-3,4-propylenedioxythienyl-BBT, in which 3,3'-diheptyl-3,4-propylenedioxythienyl group is inserted between two BT groups. 3,3'-Diheptyl-3,4-propylenedioxythienyl-BBT and 1,3-dibromo-5-(2-ethylhexyl)-5H-thierio[3,4-c]pyrrole-4,6-dione (TPD) were used as acceptor segments for the synthesis of donor-acceptor (D-A) polymers, represented by P1 and P2, respectively. Thin film transistors were fabricated using the thin films of P1 and P2 and the field effect hole mobilities are 2.7 x 10(-3) and 4.2 x 10(-4) cm(2) V-1 s(-1), respectively. A bulk heterojunction polymer solar cell (BHJ PSC) that contain P1 delivered high power conversion efficiency (PCE) value of 4.51% (with 1 vol% DIO) and 4.16% (with 1 vol% CN) with high short-circuit current density (J(sc)) of 11.7 and 10.96 mA/cm(2), respectively. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：136 / 145

页数：10

共 58 条

[1] Thieno-, Furo-, and Selenopheno[3,4-c]pyrrole-4,6-dione Copolymers: Effect of the Heteroatom on the Electrooptical Properties [J].