https://scholars.lib.ntu.edu.tw/handle/123456789/338774
標題: | A novel photoelectrochromic device with dual application based on poly(3,4-alkylenedioxythiophene) thin film and an organic dye | 作者: | Hsu, Chih-Yu Lee, Kun-Mu Huang, Jen-Hsien Thomas, K.R. Justin Lin, Jiann T. Ho, Kuo-Chuan KUO-CHUAN HO |
關鍵字: | Dye-sensitized solar cell (DSSC); Electron transfer; Organic dye; Photoelectrochromic device (PECD); Poly(3,4-alkylenedioxythiophene) | 公開日期: | 2008 | 卷: | 185 | 期: | 2 | 起(迄)頁: | 1505-1508 | 來源出版物: | Journal of Power Sources | 摘要: | A novel photoelectrochromic device (PECD) with dual application was studied using an electrochromic polymer thin film, poly(3,3-diethyl-3,4-dihydro-2H-thieno-[3,4-b][1,4]dioxepine) (PProDot-Et2), and an organic photosensitive dye, FL dye1, which was adsorbed on a TiO2 electrode. In the presence of the redox couple, the electron transfer reaction at the electrolyte/PProDot-Et2 conducting polymer interface was found to determine the electrochromism of the PECD. The rate constants of the electron transfer (k0) for different redox couples at the PProDot-Et2 film were obtained by using electrochemical impedance spectroscopy (EIS) and were correlated with the coloration depth of the thin film. Since I-/I3- and Br-/Br3- couples possess the highest and the lowest k0 value, respectively, the PECD was investigated using these two redox couples under constant light illumination of 50 mW cm-2. The I-/I3- couple provided a higher short circuit current density (JSC) when acting as a dye-sensitized solar cell (DSSC), thus the switching response upon coloration (ca. 3 s) was much faster than that of the PECD using the Br-/Br3- couple (ca. 2 min). On the contrary, the PECD using Br-/Br3- exhibited a larger transmittance attenuation of ca. 33.7%, in comparison to that using I-/I3- (ca. 14.1%). © 2008 Elsevier B.V. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-56049106061&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/338774 |
DOI: | 10.1016/j.jpowsour.2008.09.031 | SDG/關鍵字: | ABS resins; Conducting polymers; Electric fault location; Electrochemical corrosion; Electrochemical impedance spectroscopy; Electrochromism; Electron transitions; Optical properties; Organic conductors; Photoelectric devices; Photoelectrochemical cells; Photovoltaic cells; Polymers; Rate constants; Short circuit currents; Solar energy; Solar equipment; Thick films; Thin film devices; Thin films; Dye-sensitized solar cell (DSSC); Electron transfer; Organic dye; Photoelectrochromic device (PECD); Poly(3,4-alkylenedioxythiophene); Solar cells |
顯示於: | 化學工程學系 |
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