Journal ArticleDOI
Design of new coumarin dyes having thiophene moieties for highly efficient organic-dye-sensitized solar cells
Kohjiro Hara,Mitsuhiko Kurashige,Yasufumi Dan-oh,Chiaki Kasada,Akira Shinpo,Sadaharu Suga,Kazuhiro Sayama,Hironori Arakawa +7 more
Reads0
Chats0
TLDR
In this paper, the coumarin dyes having thiophene moieties were developed to improve the photovoltaic performance of dye-sensitized nanocrystalline TiO2 solar cells based on the organic dyes as photosensitizers.Abstract:
We have developed new coumarin dyes having thiophene moieties in order to improve the photovoltaic performance of dye-sensitized nanocrystalline TiO2 solar cells based on the organic dyes as photosensitizers. A solar-energy-to-electricity conversion efficiency (η) of 7.7% was attained under AM 1.5 irradiation (100 mW cm−2) with a short-circuit current density (Jsc) of 14.3 mA cm−2, an open-circuit voltage (Voc) of 0.73 V, and a fill factor (ff) of 0.74.read more
Citations
More filters
Journal ArticleDOI
Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) offer the possibilities to design solar cells with a large flexibility in shape, color, and transparency as mentioned in this paper, and many DSC research groups have been established around the world.
Journal ArticleDOI
Nanowire dye-sensitized solar cells
Matt Law,Lori E. Greene,Lori E. Greene,Justin C. Johnson,Richard J. Saykally,Peidong Yang,Peidong Yang +6 more
TL;DR: This work introduces a version of the dye-sensitized cell in which the traditional nanoparticle film is replaced by a dense array of oriented, crystalline ZnO nanowires, which features a surface area up to one-fifth as large as a nanoparticle cell.
Book
Dye-sensitized Solar Cells
TL;DR: The dye-sensitized solar cells (DSC) as discussed by the authors provides a technically and economically credible alternative concept to present day p-n junction photovoltaic devices, where light is absorbed by a sensitizer, which is anchored to the surface of a wide band semiconductor.
Journal ArticleDOI
Solar energy conversion by dye-sensitized photovoltaic cells
TL;DR: Developing solar cells that are based on the sensitization of mesoscopic oxide films by dyes or quantum dots, and the examples for the first outdoor application of such solar cells will be provided.
Journal ArticleDOI
Metal-Free Organic Dyes for Dye-Sensitized Solar Cells: From Structure: Property Relationships to Design Rules
TL;DR: Recent advances in molecular design and technological aspects of metal-free organic dyes for applications in dye-sensitized solar cells are focused on.
References
More filters
Journal ArticleDOI
Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodes
Mohammad Khaja Nazeeruddin,Andreas Kay,I. Rodicio,Robin Humphry-Baker,E. Mueller,Paul Liska,Nick Vlachopoulos,Michael Graetzel +7 more
TL;DR: Cis-X 2 Bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) complexes were prepared and characterized with respct to their absorption, luminescence, and redox behavior.
Journal ArticleDOI
Light-Induced Redox Reactions in Nanocrystalline Systems
Anders Hagfeldt,Michael Graetzel +1 more
TL;DR: A review with 156 refs on interfacial electron transfer reactions in colloidal semiconductor solns and thin films and their application for solar light energy conversion and photocatalytic water purifn is presented in this paper.
Journal ArticleDOI
Engineering of Efficient Panchromatic Sensitizers for Nanocrystalline TiO2-Based Solar Cells
Mohammad Khaja Nazeeruddin,Peter Pechy,Thierry Renouard,Shaik M. Zakeeruddin,Robin Humphry-Baker,Pascal Comte,Paul Liska,Le Cevey,E Costa,Valery Shklover,Leone Spiccia,Glen B. Deacon,Carlo Alberto Bignozzi,Michael Grätzel +13 more
TL;DR: The black dye, when anchored to nanocrystalline TiO(2) films achieves very efficient sensitization over the whole visible range extending into the near-IR region up to 920 nm, yielding over 80% incident photon-to-current efficiencies (IPCE).
Journal ArticleDOI
Nanocrystalline titanium oxide electrodes for photovoltaic applications
Christophe Jean Alexandre Barbe,Francine Arendse,Pascal Comte,Marie Jirousek,Frank Lenzmann,Valery Shklover,Michael Grätzel +6 more
TL;DR: In this paper, the authors developed a new type of solar cell that is based on a photoelectrochemical process, where the light absorption is performed by a monolayer of dye (i.e., a Ruthenium complex) that is adsorbed chemically at the surface of a semiconductor.
Journal ArticleDOI
Molecular Design of Coumarin Dyes for Efficient Dye-Sensitized Solar Cells
Kohjiro Hara,Tadatake Sato,Ryuzi Katoh,Akihiro Furube,Yasuyo Ohga,Akira Shinpo,Sadaharu Suga,Kazuhiro Sayama,Hideki Sugihara,Hironori Arakawa +9 more
TL;DR: The monochromatic incident photon-to-current conversion efficiency (IPCE) from 420 to 600 nm for a DSSC based on NKX-2311 was over 70% with the maximum of 80% at 470 nm, which is almost equal to the efficiency obtained with the N3 dye system.