High-efficiency hole extraction/electron-blocking layer to replace poly(3,4-ethylenedioxythiophene)

poly(styrene sulfonate) in bulk-heterojunction polymer solar cells

Alexander W. Hains, Tobin J Marks

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

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%.

Original languageEnglish
Article number023504
JournalApplied Physics Letters
Volume92
Issue number2
DOIs
Publication statusPublished - 2008

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sulfonates
heterojunctions
polystyrene
solar cells
polymers
cells
electrons
butyric acid
indium oxides
tin oxides
thick films
esters
anodes
thermal stability

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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title = "High-efficiency hole extraction/electron-blocking layer to replace poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) in bulk-heterojunction polymer solar cells",
abstract = "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{\%}.",
author = "Hains, {Alexander W.} and Marks, {Tobin J}",
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AU - Hains, Alexander W.

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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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