Evaluation and Optimization to Recycle Used TiO<sub>2</sub> Photoelectrode for Dye-Sensitized Solar Cells

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left">Device</td><td align="center"><svg height="15.4" id="M16" style="vertical-align:-3.39064pt" version="1.1" viewbox="0 0 24.575001 15.4" width="24.575001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><path d="M730 650l-8 -28q-52 -4 -72 -18t-64 -77q-79 -113 -321 -539h-33l-119 541q-13 59 -29.5 73t-66.5 20l7 28h245l-8 -28l-28 -5q-33 -6 -40.5 -15.5t-0.5 -38.5l102 -450h2q191 320 246 430q21 42 15.5 56t-43.5 19l-31 4l7 28h240z" id="x1D449"></path></g>
<g transform="matrix(.012,-0,0,-.012,12.675,15.187)"><path d="M257 449q92 0 154 -65t62 -158q0 -112 -67 -175t-150 -63q-98 0 -158.5 66.5t-60.5 154.5q0 59 21 106.5t54.5 75.5t71 43t73.5 15zM244 416q-48 0 -81 -47t-33 -128q0 -96 38 -158t99 -62q51 0 82 43.5t31 139.5q0 91 -36 151.5t-100 60.5z" id="x6F"></path></g><g transform="matrix(.012,-0,0,-.012,18.85,15.187)"><path d="M390 111l17 -21q-34 -45 -80 -73.5t-89 -28.5q-91 0 -146 62t-55 147q0 118 101 195q74 57 149 57h1q59 0 90 -27q16 -14 16 -30q0 -15 -12 -29t-21 -14q-8 0 -19 11q-44 41 -101 41q-52 0 -87.5 -42.5t-35.5 -117.5q0 -49 15 -87t39 -58t49 -30t48 -10q33 0 60.5 12
t60.5 43z" id="x63"></path></g>
</svg> (V)</td><td align="center"><svg height="15.4" id="M17" style="vertical-align:-3.39064pt" version="1.1" viewbox="0 0 18.012501 15.4" width="18.012501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><path d="M434 650l-5 -28q-60 -8 -75 -20.5t-25 -69.5l-71 -395q-20 -107 -57.5 -168t-106.5 -94q-40 -18 -61 -20l-10 32q77 23 113 108q21 50 41 160l68 377q10 57 -1.5 69.5t-76.5 20.5l6 28h261z" id="x1D43D"></path></g>
<g transform="matrix(.012,-0,0,-.012,7.825,15.187)"><path d="M319 325l-25 -7q-33 99 -103 99q-29 0 -47 -19.5t-18 -49.5t22 -49.5t62 -36.5q63 -26 95 -57t32 -79q0 -64 -50 -101t-115 -37q-35 0 -67.5 10.5t-46.5 23.5q-5 11 -11 51t-6 67l27 5q14 -53 46.5 -88.5t75.5 -35.5q29 0 50 19.5t21 50.5t-19.5 51.5t-59.5 39.5
q-28 12 -46 22.5t-38.5 27t-30.5 38.5t-10 49q0 54 42.5 92t109.5 38q48 0 88 -18q6 -15 13 -50.5t9 -55.5z" id="x73"></path></g><g transform="matrix(.012,-0,0,-.012,12.287,15.187)"><path d="M390 111l17 -21q-34 -45 -80 -73.5t-89 -28.5q-91 0 -146 62t-55 147q0 118 101 195q74 57 149 57h1q59 0 90 -27q16 -14 16 -30q0 -15 -12 -29t-21 -14q-8 0 -19 11q-44 41 -101 41q-52 0 -87.5 -42.5t-35.5 -117.5q0 -49 15 -87t39 -58t49 -30t48 -10q33 0 60.5 12
t60.5 43z" id="x63"></path></g>
</svg> (mA/cm<sup>2</sup>)</td><td align="center">FF</td><td align="center">Efficiency (%)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">Fresh device</td><td align="center">0.74</td><td align="center">10.83</td><td align="center">0.78</td><td align="center">6.24</td></tr><tr><td align="left">1st desorption/adsorption</td><td align="center">0.62</td><td align="center">5.89</td><td align="center">0.74</td><td align="center">2.71</td></tr><tr><td align="left">2nd desorption/adsorption</td><td align="center">0.56</td><td align="center">2.90</td><td align="center">0.71</td><td align="center">1.16</td></tr><tr><td align="left">3rd desorption/adsorption</td><td align="center">0.54</td><td align="center">1.67</td><td align="center">0.66</td><td align="center">0.60</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

The photovoltaic performance of DSCs under multiple adsorption/desorption processes using CH<sub>3</sub>COOH solution as desorption agent.

International Journal of Photoenergy

tab3

Table 3

Table 3: Evaluation and Optimization to Recycle Used TiO<sub>2</sub> Photoelectrode for Dye-Sensitized Solar Cells 

International Journal of Photoenergy

Evaluation and Optimization to Recycle Used TiO2 Photoelectrode for Dye-Sensitized Solar Cells

Table 3

Evaluation and Optimization to Recycle Used TiO₂ Photoelectrode for Dye-Sensitized Solar Cells