Selective positioning of organic dyes in a mesoporous inorganic oxide film

Lee, Kyungtae; Park, Se-Woong; Ko, Min Jae; Kim, Kyungkon; Park, Nam Gyu

doi:10.1038/nmat2475

Cited by 241 publications

(141 citation statements)

References 25 publications

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“…A large body of research has been conducted to enhance the light harvesting efficiency in TiO 2 photoanodes. In this context, the development of more efficient dye sensitizers, including organic dyes with a higher extinction coefficient 5,6 and energy-relay dyes, 7 and their effective utilization methods, such as cocktail dye 8,9 and selective dye adsorption 10,11 concepts, have prevailed. In addition, the introduction of a scattering layer and inverse opal nanostructures are also common.…”

Section: Introductionmentioning

confidence: 99%

Plasmon-enhanced photocurrent in quasi-solid-state dye-sensitized solar cells by the inclusion of gold/silica core–shell nanoparticles in a TiO2 photoanode

et al. 2013

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Direct evidence of the effects of the localized surface plasmon resonance (LSPR) of gold nanoparticles (Au NPs) in TiO 2 photoanodes on the performance enhancement in quasi-solid-state dye-sensitized solar cells (DSCs) is reported by comparing gold/silica core-shell nanoparticles (Au@SiO 2 NPs) and hollow silica nanoparticles with the same shell size of the core-shell nanoparticles. The Au nanoparticles were shelled by a thin SiO 2 layer to produce the core-shell structure, and the SiO 2 hollow spheres were made by dissolving the Au cores of the gold/silica core-shell nanoparticles. Therefore, the size and morphology of the SiO 2 hollow spheres were the same as the Au@SiO 2 NPs. The energy conversion efficiency was improved nearly 36% upon incorporating the Au nanoparticles, mostly due to the increase in J sc , while V oc and FF were unchanged. The improvement was mostly contributed by the LSPR of the Au@SiO 2 NPs, whereas the other parameters, such as the electron lifetime and electron diffusion coefficient, were nearly unchanged. Therefore, LSPR is an effective tool in improving the photocurrent and consequently the performance of DSCs.

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Section: Introductionmentioning

confidence: 99%

Plasmon-enhanced photocurrent in quasi-solid-state dye-sensitized solar cells by the inclusion of gold/silica core–shell nanoparticles in a TiO2 photoanode

et al. 2013

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“…[1][2][3] Generally, DSSCs comprises three components: nanocrystalline TiO 2 film photoanode, redox electrolyte, and counter electrode. [4,5] As one of the most important components in DSSCs, the nanocrystalline TiO 2 film covered by a monolayer of dye molecules has significant influence on photoelectric performance of DSSCs.…”

Section: Introductionmentioning

confidence: 99%

Influence of Electrolyte Concentration on Photovoltaic Performance of DSSCs Based on TiO2 Nanotube Array

Tong¹,

Chen²

2016

Proceedings of the 2nd Annual International Conference on Advanced Material Engineering (AME 2016)

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Abstract. The present work reports a double-layer composite film made of TiO 2 nanotube arrays (TNT-arrays) as the overlayer and TiO 2 nanoparticle (P25) as the underlayer as the photoanode of dye-sensitized solar cells (DSSCs). The TNT-arrays were fabricated by two-step anodization process. In order to further improve the conversion efficiency of DSSCs, TNT-arrays were optimized by changing the anodization conditions. The photoelectric conversion properties of DSSCs with different electrolyte concentration were investigated and compared, and the highest conversion efficiency of 4.20% was achieved in double-layer photoanode at the electrolyte concentration of 0.3wt%.

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“…Increases in the length of the central methine chain induces a significant degradation factor when exposed to light. 4,5 Although many structures for color compensating films have been introduced, there has been little research regarding the relationship of spectroscopic properties between solution and film state.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel Hemicyanine Dyes for Color Compensating Film in Plasma Display Panels

Kim¹,

Park²,

Lee³

et al. 2014

Bulletin of the Korean Chemical Society

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Five novel cyanine dyes containing julolidine and indole moieties were synthesized. Several color compensating films for plasma display panels (PDP) were prepared using these dyes. The spectroscopic and physicochemical properties of the synthesized dyes in both solution and film state were evaluated. For each color compensating film, the optimum ratio of dye to binder was determined on the basis of transmittance, half band width, and photo-stability of the color compensating film. The five synthesized dyes showed sharp absorption peaks near 590 nm (orange light) and had molar extinction coefficients above 1 × 10. The melting point of the dyes was above 200 o C and photo-stability of the color compensating films was improved by introducing substituents at the 5th position on the indole derivatives.

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Selective positioning of organic dyes in a mesoporous inorganic oxide film

Cited by 241 publications

References 25 publications

Plasmon-enhanced photocurrent in quasi-solid-state dye-sensitized solar cells by the inclusion of gold/silica core–shell nanoparticles in a TiO2 photoanode

Plasmon-enhanced photocurrent in quasi-solid-state dye-sensitized solar cells by the inclusion of gold/silica core–shell nanoparticles in a TiO2 photoanode

Influence of Electrolyte Concentration on Photovoltaic Performance of DSSCs Based on TiO2 Nanotube Array

Synthesis of Novel Hemicyanine Dyes for Color Compensating Film in Plasma Display Panels

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