A new ruthenium polypyridyl dye, TG6, whose performance in dye-sensitized solar cells is surprisingly close to that of N719, the ‘dye to beat’ for 17 years

Matar, Farah; Ghaddar, Tarek H.; Walley, Kate; DosSantos, Tracy; Durrant, James R.; O’Regan, Brian C.

doi:10.1039/b808255c

Cited by 104 publications

(73 citation statements)

References 35 publications

(42 reference statements)

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“…Following the blueprint of the famous N719 dye (Fig. 8, ''the dye to beat'' [24]), new dyes were designed to harvest more light in the NIR (near infrared) region. Initially the focus was on ruthenium bipyridyl and other metal complex dyes.…”

Section: Dye-sensitized Solar Cells (Dssc)mentioning

confidence: 99%

Emerging Thin‐Film Photovoltaic Technologies

Hermes

Waldmann

Agari

et al. 2015

Chemie Ingenieur Technik

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With free fuel from the sun, the cost of photovoltaic (PV) power is just related to conversion efficiency, lifetime and cost of the PV system. After successful optimization, crystalline silicon took the lead and a respectable PV market developed under the umbrella of subsidies. Thin-film PV technologies provide the opportunity to reduce PV costs radically. They need less active material and their production processes are lean. In addition, flexibility, low weight and transparency will open new markets. This review gives an overview about the status of three emerging thin-film technologies.

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Section: Dye-sensitized Solar Cells (Dssc)mentioning

confidence: 99%

Emerging Thin‐Film Photovoltaic Technologies

Hermes

Waldmann

Agari

et al. 2015

Chemie Ingenieur Technik

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“…In addition, recent reports indicate that changes like insertion of sulfur, replacing the heteroatom with other elements of the same group and change in alkyl position effect the energy levels and electronic transitions of ruthenium(II) complexes influencing the overall performance of DSSCs. [25][26][27][28][29] The need to develop high molar extinction coefficient sensitizers gained significant interest particularly when organic hole transport materials, with limited charge-carrier mobility are used in order to explore thin film solid state/semisolid state DSSCs. 19,20,22,23,[30][31][32][33] We have been engaged in our laboratory for the synthesis and evaluation of stable and efficient new metal free organic, phthalocyanine as well as ruthenium-based dyes as sensitizers for DSSC application.…”

Section: Introductionmentioning

confidence: 99%

High spectral response heteroleptic ruthenium (II) complexes as sensitizers for dye sensitized solar cells

et al. 2011

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Heteroleptic ruthenium(II) bipyridyl complex, cis-Ru(II)(4,4'-bis(4-tert-butylstyryl)-2,2'-bipyridyl) (4,4'-dicarboxy-2,2'-bipyridyl) (NCS 2 ) (H112) was synthesized and characterized by 1 H-NMR, MASS, Spectrofluorometer and UV-Vis spectroscopes. The photo-voltaic performance of the sensitizer was evaluated in Dye Sensitized Solar Cell (DSSC) under irradiation of AM 1·5 G solar light and the photovoltaic characteristics were compared with those of reference cells of HRS1 and N719 fabricated under comparable conditions. Compared to N719, H112 sensitizer showed enhanced molar extinction coefficient and relatively better monochromatic incident photon-to-current conversion efficiency (IPCE) across the spectral range of 400 to 800 nm with solar energy-to-electrical conversion efficiency (η) of 2·43% [open circuit photovoltage (V OC ) = 0·631 V, short-circuit photocurrent density (J SC ) = 8·96 mA/cm 2 , fill factor (ff) = 0·430], while η values of 2·51% (V OC = 0·651 V, J SC = 9·41mA/cm 2 , ff = 0·410) and 2·74% (V OC = 0·705 V, J SC = 8·62 mA/cm 2 , ff = 0·455) were obtained for HRS1 and N719 sensitized solar cells respectively. The introduction of 4,4'-bis(4-tert-butylstyryl) moieties on one of the bipyridine moieties of N719 complex shows higher light absorption abilities, IPCE and J SC .

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“…However, the main drawback of the N719 sensitizer is the lack of absorption in the red region of the visible spectrum. One of the approaches to address these issues would be to substitute one of the 2,2 0 -bipyridyl-4,4 0 -dicarboxylate groups in the sensitizer into the conjugated bipyridine of the ancillary ligand [6][7][8][9][10]. This not only exhibits an intense and red-shifted peak of the sensitizer but also increases its hydrophobicity, stabilizing device performance under long-term light soaking.…”

Section: Introductionmentioning

confidence: 99%