Figure 3 I – V characteristics of T25/T25-DL-, T25/T240-DL-, and T240/T240-DL-based DSSCs selleck products with condenser this website lens-based solar concentrator. Figure 4 Electrochemical impedance spectroscopy analysis of DSSCs with T25/T25, T25/T240, and T240/T240 DL. (a) Nyquist plots and (b) Bode plots of
T25/T25-DL-, T25/T240-DL-, and T240/T240-DL-based DSSCs with condenser lens-based solar concentrator. In order to qualitatively verify the increase of power output by using the T25/T240-DL©-based DSSCs, we tried to operate a small propeller installed on an electric motor (rated voltage = 0.6 V, rated current = 12 mA, Jinlong Machinery & Electronics Co., Zhejiang, China) powered by the T25/T240-DL-based DSSC with or without condenser lens-based solar concentrator. Figure 5a, b shows that the electric motor did not operate by the T25/T240-DL-based DSSC without using condenser lens-based solar concentrator under the light illumination because the power output was not sufficient. However, after installing the light concentrator on top of the T25/T240-DL-based DSSC, the electric motor operated very fast under light illumination as shown in Figure 5c, d, suggesting that the T25/T240-DL©-based DSSC sufficiently generated power output
to operate the given electric motor. This realizes a potential concept for a solar cell module composed of an optimized solar concentrator and a DSSC, which enables to operate portable electric devices with relatively high power input. Figure 5 Demonstration CRT0066101 nmr of high power output from solar concentrator-assisted T25/T240-DL-based DSSC. Photographs of a propeller installed on an electric motor powered by a T25/T240-DL-based DSSC without condenser lens-based solar concentrator (a) before and (b) after light illumination (Here, the propeller did not rotate after
light illumination). Photographs of a propeller installed on an electric motor powered by a T25/T240-DL-based DSSC with condenser lens-based solar concentrator (c) before and (d) after light illumination (Here, the propeller Molecular motor rotated very fast after light illumination). Conclusions In this study, we obtained the optimized intensity and focal area of incident light in a simple condenser lens-based solar concentrator by adjusting the focal length of light pathways for a reference DSSC with a T25 SL. Further, we verified the role of a T240-accumulated layer applied on top of the T25-accumulated dye-absorbing layer to serve as a strong light-scattering medium. Furthermore, the light-scattering capacity of the T240 layer in the photoelectrodes of DSSCs was found to be enhanced upon precisely concentrating the incident light with the assistance of the condenser lens-based solar concentrator.