https://scholars.lib.ntu.edu.tw/handle/123456789/629321
標題: | High temperature processed ZnO nanorods using flexible and transparent mica substrates for dye-sensitized solar cells and piezoelectric nanogenerators | 作者: | Kim, DY LEE, S. ZONG-HONG LIN Choi, KH Doo, SG CHANG, H. Leem, JY Wang, ZL Kim, SO |
關鍵字: | Zinc oxide; Nanorod; Thermal annealing; Dye-sensitized solar cell; Piezoelectric nanogenerator; LIGHT-EMITTING-DIODES; HYDROTHERMAL PROCESS; OPTICAL-PROPERTIES; NANOTUBE ARRAYS; GROWTH; FILMS; TIO2; POLYETHYLENEIMINE; PERFORMANCE; NANOSTRUCTURES | 公開日期: | 2014 | 出版社: | ELSEVIER SCIENCE BV | 卷: | 9 | 起(迄)頁: | 101 | 來源出版物: | NANO ENERGY | 摘要: | The authors report the synthesis of ZnO nanorods on flexible and transparent mica substrates. The coupled use of polyethylenimine and ammonium hydroxide provided a direct method for growing vertically well-aligned ZnO nanorods with a high aspect ratio. Using mica as a substrate material enabled thermal annealing processes, which improved the structural and optical properties of ZnO nanorods with uniform surface coverage and excellent adhesion, increased transmittance of indium tin oxide (ITO)/mica (52%), and decreased sheet resistance of ITO/mica (80%). We have fabricated ZnO nanorod-based dye-sensitized solar cells (DSSCs) and piezoelectric nanogenerators (NGs) and investigated their annealing effects on the device performances. Specifically, the thermal treatment at 500. °C for 30. min increased the energy conversion efficiencies of DSSCs by 53%. Furthermore, we observed a three-fold increase in the NG's output voltage and output current density through this thermal annealing process. As shown below, mica, which can function under extremes of temperature, is useful as a substrate for flexible and transparent electronics. © 2014 Elsevier Ltd. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/629321 | ISSN: | 2211-2855 | DOI: | 10.1016/j.nanoen.2014.07.004 |
顯示於: | 醫學工程學研究所 |
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