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Characteristics of Sputtered Cr Thin Films and Application as a Working Electrode in Transparent Conductive Oxide-Less Dye-Sensitized Solar Cells

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Cr metal electrode was suggested as the working electrode material to fabricate DSSCs without the TCO, and thin films were fabricated by an unbalanced magnetron sputtering system. The surface morphologies show uniform and smooth surfaces regardless of various film thicknesses, and the small crystallites of various sizes were showed with the vertical direction on the surface of Cr thin films with the increase of film thickness. And also, the root mean square (RMS) surface roughness value of Cr thin films increased, and the sheet resistance is decreased with the increase of film thickness. The maximum cell efficiency of the TCO-less DSSC was observed when a Cr working electrode with a thickness of 80 nm was applied to the TCO-less DSSC. Consequently, these results are related to the result of the optimization of conduction characteristics, transmission properties and surface properties of Cr thin films.
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Keywords: Cr Thin Film; Dye-Sensitized Solar Cell; Magnetron Sputtering; Resistivity; Surface Roughness

Document Type: Research Article

Affiliations: 1: Department of Electronics, Chosun College of Science and Technology, Gwangju 61453, Korea 2: Department of Nursing, Masan University, 2460, Hammadaero, Naeseo-eup, MasanHoiwon gu, Chanwon-si, 51217, Korea 3: Center for Nano-Photonics Convergence Technology, Korea Institute of Industrial Technology, Gwangju 61012 Korea 4: Korea Photonics Technology Institute (KOPTI), Gwangju 61007, South Korea 5: School of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea

Publication date: September 1, 2018

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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