TY - JOUR
T1 - High-efficiency hole extraction/electron-blocking layer to replace poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) in bulk-heterojunction polymer solar cells
AU - Hains, Alexander W.
AU - Marks, Tobin J.
N1 - Funding Information:
We thank DOE for support of this research (Grant No. DE-FG02-06ER46320) and the Northwestern NSF MRSEC for characterization facilities (Grant No. DMR-0520513). We thank Dr. K. Emery of NREL for invaluable advice on OPV characterization and M. Irwin for helpful discussions.
PY - 2008
Y1 - 2008
N2 - An anode interfacial layer is reported for bulk-heterojunction (BHJ) polymer solar cells to replace the commonly used poly(3,4- ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). A poly[9,9-dioctylfluorene-co-N-[4-(3-methylpropyl)]-diphenylamine] (TFB) +4, 4′ -bis[(p -trichlorosilylpropylphenyl)phenylamino]biphenyl (TPD Si2) blend is crosslinked, forming robust ∼10 nm thick films covalently bound to indium tin oxide, which transport holes while blocking misdirected electrons. The thermal stability and photovoltaic performance metrics of TFB:TPD Si2 -modified BHJ cells are significantly greater than those of cells fabricated in parallel with PEDOT:PSS or with no interfacial layer. For a poly[2-methoxy-5- (3′, 7′ -dimethyloctyloxyl]-1,4-phenylene vinylene: methanofullerene[6 6]-phenyl C61-butyric acid methyl ester cell, Voc =0.89 V, Jsc =4.62 mA cm2, FF=54.4%, and p =2.23%.
AB - An anode interfacial layer is reported for bulk-heterojunction (BHJ) polymer solar cells to replace the commonly used poly(3,4- ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). A poly[9,9-dioctylfluorene-co-N-[4-(3-methylpropyl)]-diphenylamine] (TFB) +4, 4′ -bis[(p -trichlorosilylpropylphenyl)phenylamino]biphenyl (TPD Si2) blend is crosslinked, forming robust ∼10 nm thick films covalently bound to indium tin oxide, which transport holes while blocking misdirected electrons. The thermal stability and photovoltaic performance metrics of TFB:TPD Si2 -modified BHJ cells are significantly greater than those of cells fabricated in parallel with PEDOT:PSS or with no interfacial layer. For a poly[2-methoxy-5- (3′, 7′ -dimethyloctyloxyl]-1,4-phenylene vinylene: methanofullerene[6 6]-phenyl C61-butyric acid methyl ester cell, Voc =0.89 V, Jsc =4.62 mA cm2, FF=54.4%, and p =2.23%.
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U2 - 10.1063/1.2834697
DO - 10.1063/1.2834697
M3 - Article
AN - SCOPUS:38349158063
SN - 0003-6951
VL - 92
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 2
M1 - 023504
ER -
