• 文献标题:   Improving DSSC Performance Using Enhanced Double Layers Based on Magnetic Beads and Reduced Graphene Oxide
  • 文献类型:   Article
  • 作  者:   CHOU JC, CHANG JX, KO CC, KUO PY, LAI CH, NIEN YH, CHEN HH, HSU HH, HU GM
  • 作者关键词:   electrode, photovoltaic cell, absorption, powder, photovoltaic system, impedance, titanium dioxide tio < inlineformula xmlns:ali= http:, www, niso, org, schema, ali, 1, 0, xmlns:mml= http:, www, w3, org, 1998, math, mathml xmlns:xlink= http:, www, w3, org, 1999, xlink xmlns:xsi= http:, www, w3, org, 2001, xmlschemainstance > < texmath notation= latex >$_{2}$<, texmath > <, inlineformula >, magnetic beads mbs reduced graphene oxide rgo, dyesensitized solar cell, electrochemical impedance spectroscopy, photovoltaic conversion efficiency
  • 出版物名称:   IEEE TRANSACTIONS ON NANOTECHNOLOGY
  • ISSN:   1536-125X EI 1941-0085
  • 通讯作者地址:   Natl Yunlin Univ Sci Technol
  • 被引频次:   0
  • DOI:   10.1109/TNANO.2020.2991413
  • 出版年:   2020

▎ 摘  要

Current research shows dye-sensitized solar cell (DSSC) photovoltaic conversion efficiency (PCE) can be increased when dye absorption on double layers of titanium dioxide (TiO2) are modified using magnetic beads (MBs) and reduced graphene oxide (rGO). The effects of incorporating both MBs and rGO into a TiO2 DSSC photoanode are investigated here in detail using a solar simulator, electrochemical impedance spectroscopy, X-ray diffraction, UV & x2013;visible spectroscopy and Raman spectroscopy. This study compared to an unmodified TiO2 PCE 4.06 & x0025; and a modified photoanode PCE (& x03B7;) 5.45 & x0025;. Nyquist plots showed that incorporation of MBs and rGO decreased electron transfer impedance and increased the charge transfer rate. Increased dye-loading could be detected through UV & x2013;visible absorption enhancement of 26 & x0025; for the addition of rGO. Incorporation of MBs and rGO can produce higher photovoltaic conversion efficiency.