Organic dyes with remarkably high absorptivity; all solid-state dye sensitized solar cell and role of fluorine substitution.

A series of new organic D-pi-A dyes, A1, A2-H and A2-F, possessing a remarkably high absorption extinction coefficient of epsilon > 5.0 x 10(4) M(-1) cm(-1) at peak wavelength were synthesized, among which, A2-F having a key fluorine substitution attains excellent all solid-state DSSC performance, with optimized parameters of eta = 4.86%, J(SC) = 7.52 mA cm(-2), V(OC) = 0.91 V, and FF = 0.71.

[1]  Roberta Ragni,et al.  Fluorinated organic materials for electronic and optoelectronic applications: the role of the fluorine atom. , 2007, Chemical communications.

[2]  Yueming Cheng,et al.  High efficiency and stable dye-sensitized solar cells with an organic chromophore featuring a binary pi-conjugated spacer. , 2009, Chemical communications.

[3]  Hidetoshi Miura,et al.  Organic Dye for Highly Efficient Solid‐State Dye‐Sensitized Solar Cells , 2005 .

[4]  M. Turner,et al.  New routes to poly(4,4-dialkylcyclopentadithiophene-2,6-diyls) , 2002 .

[5]  M. Anderson,et al.  FTIR spectroscopy of alcohol and formate interactions with mesoporous TiO2 surfaces. , 2006, The journal of physical chemistry. B.

[6]  Yun Chi,et al.  Neutral, panchromatic Ru(II) terpyridine sensitizers bearing pyridine pyrazolate chelates with superior DSSC performance. , 2009, Chemical communications.

[7]  Yuan Wang,et al.  Enhance the optical absorptivity of nanocrystalline TiO2 film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells. , 2008, Journal of the American Chemical Society.

[8]  Frank Lenzmann,et al.  Charge Transport and Recombination in a Nanoscale Interpenetrating Network of n-Type and p-Type Semiconductors: Transient Photocurrent and Photovoltage Studies of TiO2/Dye/CuSCN Photovoltaic Cells , 2004 .

[9]  Michael Grätzel,et al.  High open-circuit voltage solid-state dye-sensitized solar cells with organic dye. , 2009, Nano letters.

[10]  Ladislav Kavan,et al.  Highly efficient semiconducting TiO2 photoelectrodes prepared by aerosol pyrolysis , 1995 .

[11]  Marco Piccirelli,et al.  High efficiency solid-state photovoltaic device due to inhibition of interface charge recombination , 2001 .

[12]  G. Meyer,et al.  Proton-Controlled Electron Injection from Molecular Excited States to the Empty States in Nanocrystalline TiO2 , 2001 .

[13]  S. Mitchell,et al.  Lipoxins: revelations on resolution. , 2001, Trends in pharmacological sciences.

[14]  He Tian,et al.  Triarylamine: a promising core unit for efficient photovoltaic materials. , 2009, Chemical communications.

[15]  Josef Salbeck,et al.  Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies , 1998, Nature.

[16]  L. Ojamäe,et al.  IR and quantum-chemical studies of carboxylic acid and glycine adsorption on rutile TiO2 nanoparticles. , 2006, Journal of colloid and interface science.

[17]  Pingjian Li,et al.  An all-solid-state dye-sensitized solar cell-based poly(N-alkyl-4-vinyl-pyridine iodide) electrolyte with efficiency of 5.64%. , 2008, Journal of the American Chemical Society.

[18]  Anders Hagfeldt,et al.  A light-resistant organic sensitizer for solar-cell applications. , 2008, Angewandte Chemie.

[19]  H. Sugihara,et al.  N3-sensitized TiO2 films: in situ proton exchange toward open-circuit photovoltage enhancement. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[20]  P. Chou,et al.  Development of thiocyanate-free, charge-neutral Ru(II) sensitizers for dye-sensitized solar cells. , 2010, Chemical communications.

[21]  Molecular Designs and Syntheses of Organic Dyes for Dye-Sensitized Solar Cells , 2009 .

[22]  Michael Grätzel,et al.  Investigation of Sensitizer Adsorption and the Influence of Protons on Current and Voltage of a Dye-Sensitized Nanocrystalline TiO2 Solar Cell , 2003 .

[23]  Jun-Ho Yum,et al.  Recent developments in solid-state dye-sensitized solar cells. , 2008, ChemSusChem.

[24]  L. Loew,et al.  Amino(oligo)thiophene-based environmentally sensitive biomembrane chromophores. , 2008, The Journal of organic chemistry.

[25]  Mingfei Xu,et al.  Efficient and stable solid-state dye-sensitized solar cells based on a high-molar-extinction-coefficient sensitizer. , 2010, Small.

[26]  Klaus Meerholz,et al.  Efficiency enhancements in solid-state hybrid solar cells via reduced charge recombination and increased light capture. , 2007, Nano letters.

[27]  C. S. Fuller,et al.  A New Silicon p‐n Junction Photocell for Converting Solar Radiation into Electrical Power , 1954 .

[28]  Michael Grätzel,et al.  Conversion of sunlight to electric power by nanocrystalline dye-sensitized solar cells , 2004 .

[29]  Bin Liu,et al.  Highly Efficient Nanoporous TiO2‐Polythiophene Hybrid Solar Cells Based on Interfacial Modification Using a Metal‐Free Organic Dye , 2009 .

[30]  Ashraful Islam,et al.  Dye-Sensitized Solar Cells with Conversion Efficiency of 11.1% , 2006 .