Design of an Organic Chromophore for P-Type Dye-Sensitized Solar Cells

Qin, Peng; Zhu, Hongjun; Edvinsson, Tomas; Boschloo, Gerrit; Hagfeldt, Anders; Sun, Licheng

doi:10.1021/ja8001474

Cited by 380 publications

(374 citation statements)

References 13 publications

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“…5 Because of this interesting combination of electrical and optical properties, NiO x has been considered for energy storage applications, [6][7][8] in electrochromic devices as transparent electrode, 9-17 in optoelectronic devices as electron barrier, 18,19 for gas sensing, 20,21 and, more recently, in dye-sensitized solar cells (DSCs) as photoactive cathode. [22][23][24][25][26][27][28][29][30][31][32][33][34][35] The utilization of NiO x in such diverse applications has been accompanied by the development of various preparation methods and deposition techniques, aimed at producing NiO x -based materials with variable chemical composition, electrical resistivity, compactness and morphology. Examples include electrochemical deposition, 36 chemical vapor 37 and bath deposition, 38 spray pyrolysis, 39,40 sol-gel method, 14,23,25,41 hydrothermal synthesis, 29,42 and sputtering.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical characterization of NiO electrodes deposited via a scalable powder microblasting technique

Awais

Dini

MacElroy

et al. 2013

Journal of Electroanalytical Chemistry

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Publication information Journal of Electroanalytical Chemistry, Publisher Elsevier The UCD community has made this article openly available. Please share how this access benefits you. Your story matters! (@ucd_oa) Some rights reserved. For more information, please see the item record link above. In this contribution a novel powder coating processing technique (microblasting) for the fabrication of nickel oxide (NiOx) coatings is reported. ∼1.2 μm thick NiOx coatings are deposited at 20 mm2 s−1 by the bombardment of the NiOx powder onto a Ni sheet using an air jet at a speed of more than 180 m s−1. Microblast deposited NiOx coatings can be prepared at a high processing rate, do not need further thermal treatment. Therefore, this scalable method is time and energy efficient. The mechano-chemical bonding between the powder particles and substrate results in the formation of strongly adherent NiOx coatings. Microstructural analyses were carried out using SEM, the chemical composition and coatings orientation were determined by XPS and XRD, respectively. The electroactivity of the microblast deposited NiOx coatings was compared with that of NiOx coatings obtained by sintering NiOx nanoparticles previously sprayed onto Ni sheets. In the absence of a redox mediator in the electrolyte, the reduction current of microblast deposited NiOx coatings, when analyzed in anhydrous environment, was two times larger than that produced by higher porosity NiOx nanoparticles coatings of the same thickness obtained through spray coating followed by sintering. Under analogous experimental conditions thin layers of NiOx obtained by using the sol-gel method, ultrasonic spray-and electro-deposition show generally lower current density with respect to microblast samples of the same thickness. The electrochemical reduction of NiOx coatings is controlled by the bulk characteristics of the oxide and the relatively ordered structure of microblast NiOx coatings with respect to sintered NiOx nanoparticles here considered, is expected to increase the electron mobility and ionic charge diffusion lengths in the microblast samples. Finally, the increased level of adhesion of the microblast film on the metallic substrate affords a good electrical contact at the metal/metal oxide interface, and constitutes another reason in support of the choice of microblast as low-cost and scalable deposition method for oxide layers to be employed in electrochemical applications. Electrochemical characterization of NiO electrodes deposited via a scalable powder microblasting technique

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Section: Introductionmentioning

confidence: 99%

Electrochemical characterization of NiO electrodes deposited via a scalable powder microblasting technique

Awais

Dini

MacElroy

et al. 2013

Journal of Electroanalytical Chemistry

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“…In particular, we demonstrate for the first time that DSSCs based on nanorod-like CuO electrodes outperform those with nanoparticle-like CuO and perform in a manner similar to those with CuXO2. Concerning dyes for p-type DSSCs, a myriad of different organic and inorganic sensitizers including triphenylamines, [8] perylenediimides, [9] perylene-bithiophene-triphenylamine triads, [10] porphycenes, [11] and ruthenium complexes, [12] have been designed and probed. Notably, porphyrinoids have led to the most efficient n-type DSSCs up to date.…”

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confidence: 99%

Combining Electron‐Accepting Phthalocyanines and Nanorod‐like CuO Electrodes for p‐Type Dye‐Sensitized Solar Cells

et al. 2015

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Esta es la versión de autor del artículo publicado en: This is an author produced version of a paper published in: El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription COMMUNICATION Combining novel electron-accepting phthalocyanines and nanorod-like CuO electrodes for p-type dye-sensitized solar cellsOliver Langmar, [a] Carolina R. Ganivet, [b] Annkatrin Lennert, [a] Rubén D. Costa, [a] Gema de la Torre, [b] Tomás Torres, [b] and Dirk M. Guldi [a] Abstract: In the current work, a novel route for the synthesis of two electron-accepting phthalocyanines featuring linkers with different length as sensitizers for p-type dye-sensitized solar cells are reported. Importantly, our devices -based on novel nanorod-like CuO photocathodes -feature efficiencies of 0.191%, which are to date the highest values ever reported for CuO-based DSSCs.

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“…3 Sensitizers for p-type semiconductors aimed for use in tandem DSSCs have also been Khalifa et al: Synthesis of Novel Arylazothiazolyl-thiophene Dyes ... developed in recent years. [4][5][6][7] Zhai and co-workers reported on oligothiophene dyes for DSSCs with an efficiency value of 3.4%. 8 Subsequently, Otsubo, Harima, and co-workers further developed the oligothiophene sensitizers through adjusting the number of thiophenes and introducing alkyl chains into the corresponding thiophene frameworks.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel Arylazothiazolyl-thiophene Dyes for Solar Cell and Nonlinear Optical Materials

Khalifa

Al-Amoudi

Gobouri

et al. 2016

ACSi

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Synthesis and investigation of new donor-acceptor conjugated N-(5-arylazothiazol-2-yl)-2-aminothiophene derivativeswith the aim to elucidate the contribution of their interaction with solvent molecules upon intramolecular charge transfer for their potential solar cells application is reported. The UV-visible and emission spectra measurements indicated that the properties of the synthesized dyes had a significant effect on the visible absorption and emission maxima. The effect of the donor and acceptor groups were studied for the nonlinearity based on their HOMO-LUMO band gap energy. The dye-sensitized solar cells (DSSCs) were assembled by using the newly synthesized aryl thiazolyl-thiophene dyes as sensitizers. The promising results of J SC (2.46 × 10 -2 and 4.07 × 10 -2 mA/cm 2 ), the V OC (0.429 V and 0.426 V) and the FF (0.66 %) values obtained compared to other organic and natural sensitizer were due to the better interaction between the carboxyl and carbonyl groups of aryl azo molecule attached to the thiazolyl nucleus and the surface of TiO 2 porous film.

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Design of an Organic Chromophore for P-Type Dye-Sensitized Solar Cells

Cited by 380 publications

References 13 publications

Electrochemical characterization of NiO electrodes deposited via a scalable powder microblasting technique

Electrochemical characterization of NiO electrodes deposited via a scalable powder microblasting technique

Combining Electron‐Accepting Phthalocyanines and Nanorod‐like CuO Electrodes for p‐Type Dye‐Sensitized Solar Cells

Synthesis of Novel Arylazothiazolyl-thiophene Dyes for Solar Cell and Nonlinear Optical Materials

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