Dye-sensitized solar cell with the near-infrared sensitization of aluminum phthalocyanine

Komori, Tasuku; Amao, Yutaka

doi:10.1142/s1088424603000185

Cited by 23 publications

(8 citation statements)

References 21 publications

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“…These transitions are characterized by the Q band in the visible region of the spectrum, which results from ππ * electron transitions from the highest occupied molecular orbitals (HOMO) (a1u and a2u) to the lowest unoccupied molecular orbitals (LUMO), and occurs at about 600-700 nm. The other one is called the B band and can be seen in the 300-400 nm range due to from deeper π HOMO to LUMO energy levels [33]. In this study,…”

Section: Electronic Absorption Spectramentioning

confidence: 88%

Design of novel substituted phthalocyanines; synthesis and fluorescence, DFT, photovoltaic properties

Ağırtaş¹,

Solğun²,

Yıldıko³

et al. 2020

Turk J Chem

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The 4-(2-(3,4-dimethoxyphenoxy) phenoxy) phthalonitrile was synthesized as the starting material of new syntheses. Zinc, copper, and cobalt phthalocyanines were achieved by reaction of starting compound with Zn(CH3COO)2, CuCl2 and CoCl2 metal salts. Basic spectroscopic methods such as nuclear magnetic resonance electronic 2 absorption, mass and infrared were used in the structure characterization of the compounds. Absorption, excitation and emission measurements of fluorescence zinc phthalocyanine compound were also investigated in THF. Then, structural, energy and electronic properties for synthesized metallophthalocyanines were determined by quantum chemical calculations including DFT method. The band gap of HOMO and LUMO was determined to be chemically active. Global reactivity (I, A, η, s, μ, χ, ω) and non-linear properties were studied. In addition, molecular electrostatic potential (MEP) maps were drawn to identify potential reactive regions of metallo phthalocyanine (M-Pc) compounds. Photovoltaic performances of phthalocyanine compounds for dye sensitive solar cells were investigated. Solar conversion efficiency of DSSC based on copper, zinc and cobalt phthalocyanine compounds was 1.69%, 1.35% and 1.54%, respectively. Compounds have good solubility and show nonlinear optical properties. Zinc phthalocyanine gave fluorescence emission.

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Section: Electronic Absorption Spectramentioning

confidence: 88%

Design of novel substituted phthalocyanines; synthesis and fluorescence, DFT, photovoltaic properties

Ağırtaş¹,

Solğun²,

Yıldıko³

et al. 2020

Turk J Chem

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“…[28] Besides transition-metal complexes, a range of organic molecules have been explored, with recent examples including coumarin, [29] squaraine, [30] indoline, [31] hemicyanine, [32] and other conjugated donoracceptor organic dyes, [33][34][35][36] and the best efficiency reported was 8 % (see Figure 7 a in Section 2.5). [31] Porphyrin dyes [37,38] and phthalocyanine dyes [39] have also been explored. The dyes used in DSSC technology must conform to a number of essential design requirements in order to function.…”

Section: General Design Of Dyesmentioning

confidence: 99%

Optimizing Dyes for Dye‐Sensitized Solar Cells

2006

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Dye-sensitized solar cells (DSSCs) have emerged as an important cheap photovoltaic technology. Charge separation is initiated at the dye, bound at the interface of an inorganic semiconductor and a hole-transport material. Careful design of the dye can minimize loss mechanisms and improve light harvesting. Mass application of DSSCs is currently limited by manufacturing complexity and long-term stability associated with the liquid redox electrolyte used in the most-efficient cells. In this Minireview, dye design is discussed in the context of novel alternatives to the standard liquid electrolyte. Rapid progress is being made in improving the efficiencies of such solid and quasi-solid DSSCs which promises cheap, efficient, and robust photovoltaic systems.

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“…In another study, myristic acid was employed as a co-adsorbent of aluminium(III) tetraphenoxy phthalocyanine hydroxide for the sensitization of nanocrystalline TiO 2 . 42,43 It was found that the co-adsorbent showed a dramatic decrease in the aggregation of Pc on the nanocrystalline surface and as a result the test cell efficiency was improved. Balaraju et al 44 have used iron tetrasulfonic acid phthalocyanine (Dye 6) sensitizer and the corresponding device has shown an overall conversion efficiency of 4.1% by employing a PEDOT:PSS-coated FTO counter electrode instead of the usual Pt counter electrode and dilute HNO 3 treatment of TiO 2 .…”

Section: Symmetrical Phthalocyanine Sensitizersmentioning

confidence: 99%

Emerging molecular design strategies of unsymmetrical phthalocyanines for dye-sensitized solar cell applications

2014

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In recent years, dye-sensitized solar cells (DSSCs) have emerged as one of the possible solutions for the global energy crisis. Among the various components of DSSCs, the sensitizer, which harvests solar energy and injects electrons in to the semiconductor layer, plays a crucial role in achieving high efficiency and durability of the cell. To date ruthenium(II) sensitizers exhibit high efficiencies (>11.5%), but they are not so suitable for roof-top/commercial applications mainly because of their limited harvesting capability, expensive ruthenium metal and low durability. In this context, various sensitizers which include porphyrins, phthalocyanines and metal-free organic dye sensitizers have been developed and some of them were found to exhibit enhanced efficiencies compared to classical ruthenium(II) sensitizers. Man-made tetrapyrrolic systems, phthalocyanines (Pcs) have also been studied significantly because of their unique thermal and electronic properties in the red and near-IR regions. Over the years, the efficiency of Pc-based DSSC has improved to 6.1% by synthesizing various Pc derivatives and optimizing fabrication parameters. However, in the present review article, only the recent developments in Pc-based DSSCs have been documented in detail. This review also emphasizes different molecular engineering approaches that the researchers developed for achieving higher efficiency.

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Dye-sensitized solar cell with the near-infrared sensitization of aluminum phthalocyanine

Cited by 23 publications

References 21 publications

Design of novel substituted phthalocyanines; synthesis and fluorescence, DFT, photovoltaic properties

Design of novel substituted phthalocyanines; synthesis and fluorescence, DFT, photovoltaic properties

Optimizing Dyes for Dye‐Sensitized Solar Cells

Emerging molecular design strategies of unsymmetrical phthalocyanines for dye-sensitized solar cell applications

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