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- W2042022055 abstract "Titanium dioxide films are a critical component of many next-generation low cost solar cells. Film morphology has beenidentified as an efficiency-limiting property. A gas phase, single-step, rapid, atmospheric-pressure process to synthesizeTiO 2 films with controlled morphology is reported. The process is based on a flame aerosol reactor (FLAR). Twodifferent morphologies were synthesized for this report, granular and columnar. The granular morphology consists ofnanoparticles aggregated into fractal structures on the substrate, and is characterized by high surface area and poorelectronic properties. The columnar morphology is highly crystalline; composed of 1D structures oriented normal to thesubstrate, characterized by lower surface area and superior electronic properties. Films with both morphologies areapplied to a hydrogen-producing photo-watersplitting cell and a photovoltaic dye-sensitized solar cell. For watersplitting,the columnar morphology outperforms the granular by almost 2 orders of magnitude, achieving a uv -light to hydrogenconversion efficiency of about 11%. In contrast, for the dye-sensitized solar cell, the granular morphology outperformsthe columnar, due to enhanced dye absorption arising from the larger TiO 2 surface area." @default.
- W2042022055 created "2016-06-24" @default.
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- W2042022055 date "2007-09-13" @default.
- W2042022055 modified "2023-09-23" @default.
- W2042022055 title "Rapid synthesis of nanostructured metal-oxide films for solar energy applications by a flame aerosol reactor (FLAR)" @default.
- W2042022055 doi "https://doi.org/10.1117/12.733982" @default.
- W2042022055 hasPublicationYear "2007" @default.
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