Journal
NANOSCALE RESEARCH LETTERS
Volume 7, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/1556-276X-7-48
Keywords
composites; chemical synthesis; X-ray diffraction; electron microscopy; optical properties
Funding
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Korean government's Ministry of Knowledge Economy [20104010100510]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20104010100510] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Efficiency of dye-sensitized solar cells [DSSCs] was enhanced by combining the use of TiO2 nanotubes [TNTs] and nanoparticles. TNTs were fabricated by a sol-gel method, and TiO2 powders were produced through an alkali hydrothermal transformation. DSSCs were constructed using TNTs and TiO2 nanoparticles at various weight percentages. TNTs and TiO2 nanoparticles were coated onto FTO glass by the screen printing method. The DSSCs were fabricated using ruthenium(II) (N-719) and electrolyte (I-3/I-3 (-)) dyes. The crystalline structure and morphology were characterized by X-ray diffraction and using a scanning electron microscope. The absorption spectra were measured using an UV-Vis spectrometer. The incident photocurrent conversion efficiency was measured using a solar simulator (100 mW/cm(2)). The DSSCs based on TNT/TiO2 nanoparticle hybrids showed better photovoltaic performance than cells made purely of TiO2 nanoparticles.
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