TY - JOUR
T1 - Low band gap polymer bulk heterojunction solar cells
AU - Wienk, M.M.
AU - Struijk, M.P.
AU - Janssen, R.A.J.
PY - 2006
Y1 - 2006
N2 - Bulk heterojunction solar cells comprising a new low band gap polymer (PBEHTB) based on alternating electron-donating 3,4,3',4'-tetrakis[2-ethylhexyloxy]-2,2'-bithiophene and electron-deficient 2,1,3-benzothidiazole units along the chain as electron donor and [6,6]-phenyl-C61 butyric acid Me ester (PCBM) as electron acceptor were prepd. The polymer absorbs light up to 800 nm and thus covers a substantial part of the solar spectrum. Solar cells based on PBEHTB:PCBM exhibit excellent behavior giving an external quantum efficiency in the near IR of 13%. Under simulated AM1.5 conditions an open circuit voltage of 0.77 V, a short circuit current of 2.8 mA/cm2, and a power conversion efficiency of 0.9% were achieved, which is among the best achieved for low band gap polymer solar cells.
AB - Bulk heterojunction solar cells comprising a new low band gap polymer (PBEHTB) based on alternating electron-donating 3,4,3',4'-tetrakis[2-ethylhexyloxy]-2,2'-bithiophene and electron-deficient 2,1,3-benzothidiazole units along the chain as electron donor and [6,6]-phenyl-C61 butyric acid Me ester (PCBM) as electron acceptor were prepd. The polymer absorbs light up to 800 nm and thus covers a substantial part of the solar spectrum. Solar cells based on PBEHTB:PCBM exhibit excellent behavior giving an external quantum efficiency in the near IR of 13%. Under simulated AM1.5 conditions an open circuit voltage of 0.77 V, a short circuit current of 2.8 mA/cm2, and a power conversion efficiency of 0.9% were achieved, which is among the best achieved for low band gap polymer solar cells.
U2 - 10.1016/j.cplett.2006.03.027
DO - 10.1016/j.cplett.2006.03.027
M3 - Article
VL - 422
SP - 488
EP - 491
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 4-6
ER -