Evaluation of treatment effects for high-performance dye-sensitized solar cells using equivalent circuit analysis

Murayama, Masaki; Mori, Toshiyuki

doi:10.1016/j.tsf.2005.09.145

Cited by 79 publications

(49 citation statements)

References 9 publications

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“…In summary, we have successfully applied α-NPD as an alternative HTL for MAPbI 3 a-NPD Spiro-OMeTAD due to the insufficient extraction of the photo-generated holes by the α-NPD as determined by PL results. However, despite this challenge, the use of α-NPD as HTL presents a low-cost, and functionally alternative for the industrial production of PSCs.…”

Section: Resultsmentioning

confidence: 99%

“…Thin-film solar cells such as dye-sensitized solar cells and organic photovoltaic have been studied extensively by our group [1][2][3][4][5][6][7][8][9] because they can be assembled with low-cost materials and manufactured with cost-effective methods, which are considered to be very promising renewable energy technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, organic-inorganic methylammoniumlead halide perovskites (e.g., MAPbX 3 , X=Cl, Br, I) have shown to be efficient light absorbing layer for use in thin-film photovoltaics due to their high charge-carrier mobility [10], low exciton binding energy (~50 meV) [11], large exciton diffusion length [12,13], and broad spectral absorption [14]. The use of hybrid organic -inorganic methylammonium lead halide (MAPbI 3 ) perovskites as light harvesters in solar cells were first reported by Kojima and coworkers, and they achieved power conversion efficiency (PCE) of about 3.8% [15].…”

Section: Introductionmentioning

confidence: 99%

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Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on α-Naphthyl Diamine Derivative

Eze

Mori

2016

J. Photopol. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on α-Naphthyl Diamine Derivative

Eze

Mori

2016

J. Photopol. Sci. Technol.

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“…In addition to inorganic acids, several organic acids have been used to modify a photoanode. Based on equivalent circuit analysis, Murayama et al [58] concluded that acetic acid treatment not only improved the electrical contact between TiO2 NPs but also blocked the charge transfer from the TiO2 surface to the electrolyte. Sakaguchi et al [54] treated TiO2 electrodes with a dilute solution of carboxylic acid and fabricated DSSCs with quasi-solid electrolytes containing ionic liquids.…”

Section: Acid Treatmentmentioning

confidence: 99%

Improving the efficiency of dye-sensitized solar cells by photoanode surface modifications

Sun

Dou

et al. 2016

Sci. China Mater.

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Dye-sensitized solar cells (DSSCs) provide a promising alternative solar cell technology because of their high efficiency, environmental friendliness, easy fabrication, and low cost. Power conversion efficiency is an important parameter to measure the performance of DSSCs, but the severe charge recombination that occurs at the photoanode hinders the future improvement of power conversion efficiency. Therefore, one of the key goals for achieving high efficiency is to reduce the energy loss caused by the unwanted charge recombination at various interfaces. From this perspective, surface modification of the photoanode is the simplest method among the various approaches available in the literature for enhancing the performance of DSSCs by inhibiting the interfacial charge recombination. After some brief notes on DSSCs, in this review, we present a comprehensive discussion on surface modifications of different photoanodes that have been adopted in the literature not only for reducing recombination but also for enhancing light harvesting. Depending on the electrode materials, we discuss surface modifications of binary oxides such as TiO2 and ZnO and ternary oxides, including Zn2SnO4, SrSnO3, and BaSnO3. We also talk about methods of surface modification and the materials suitable for surface treatment. Finally, we end with a brief future outlook of DSSCs.

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“…Generally, the annealing is carried out by putting on a hot-plate. Our groups have studied and proposed on dye-sensitized solar cells [13][14][15][16][17][18] and organic thin-film photovoltaic cells [19,20]. In this paper, we propose a direct annealing due to the Joule heat by flowing current to ITO electrodes without a hot-plate.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Properties of Polythiophen:Fullerene Derivative Solar Cell Using Annealing due to Anode Joule Heating

Mori

Naito

2015

J. Photopol. Sci. Technol.

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A hot-plate annealing is often used as the anneal process of a regioregular poly(3-hexylthiophene-2,5-diyl) (P3HT): [6,6]-phenyl-C 60 -butyric acid methyl ester (PCBM) thin-film solar cell. In laboratories, the anneal procedure is carried out by putting the substrates on a hot plate. We tried to anneal the specimens using the Joule heat due to applying current to ITO electrode. The configuration of ITO electrode is 29mm-length and 2mm-width. The current flowing in ITO is from 60 to 80 mA. The temperatures corresponding to these currents are ~ 95 and ~140°C. The temperature change of the specimen on a hot plate can be restaged by the Joule heating. Although the photovoltaic properties of non-annealing specimen are the poorest of the three, those of Joule heat annealing specimen are the same as those of hot-plate annealing specimen. The absorption spectra of three specimens are same. The IPCE spectrum of non-annealing specimen is 70 % lower than the other specimens. This result shows the carrier transport in the active layer and the carrier ejection from the active layer to both electrodes. The Joule heat anneal is found to give the P3HT:PCBM device performance similar to the hot plate anneal.

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Evaluation of treatment effects for high-performance dye-sensitized solar cells using equivalent circuit analysis

Cited by 79 publications

References 9 publications

Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on α-Naphthyl Diamine Derivative

Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on α-Naphthyl Diamine Derivative

Improving the efficiency of dye-sensitized solar cells by photoanode surface modifications

Photovoltaic Properties of Polythiophen:Fullerene Derivative Solar Cell Using Annealing due to Anode Joule Heating

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Evaluation of treatment effects for high-performance dye-sensitized solar cells using equivalent circuit analysis

Cited by 79 publications

References 9 publications

Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on &alpha;-Naphthyl Diamine Derivative

Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on &alpha;-Naphthyl Diamine Derivative

Improving the efficiency of dye-sensitized solar cells by photoanode surface modifications

Photovoltaic Properties of Polythiophen:Fullerene Derivative Solar Cell Using Annealing due to Anode Joule Heating

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Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on α-Naphthyl Diamine Derivative

Organic-Inorganic Hybrid Perovskite Solar Cells Using Hole Transport Layer Based on α-Naphthyl Diamine Derivative