A composite poly(3,3-diethyl-3,4-dihydro-2H-thieno-[3,4-b][1,4]-dioxepine) and Pt film as a counter electrode catalyst in dye-sensitized solar cells |
| |
| Authors: | Min-Hsin Yeh Chuan-Pei Lee Lu-Yin Lin Po-Chin Nien Po-Yen Chen R. Vittal Kuo-Chuan Ho |
| |
| Affiliation: | aDepartment of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan;bInstitute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan |
| |
| Abstract: | A composite poly(3,3-diethyl-3,4-dihydro-2H-thieno-[3,4-b][1,4]-dioxepine) and platinum (PProDOT-Et2/Pt) film was prepared for using as a counter electrode (CE) catalyst in a dye-sensitized solar cell (DSSC). Four composite films were prepared by electropolymerization of ProDOT-Et2 on indium tin oxide (ITO) conducting glass, followed by Pt sputtering for 10, 30, 120, and 720 s. The Pt content in the composite film was verified by energy dispersive X-ray spectroscopy (EDX). The composite films possessed three-dimensional (3D) porous structures, as determined by scanning electron microscopy (SEM). The DSSC with the composite film that was subject to 10 s of Pt deposition (PProDOT-Et2/Pt-10 s) exhibited the highest solar to electricity conversion efficiency (η) of 6.68%, while the cells with the bare polymer film (PProDOT-Et2) and Pt that was sputtered for 720 s (s-Pt-720 s) demonstrated efficiencies of 4.76% and 6.43%, respectively. The cell photovoltaic parameters were substantiated through dark current, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) analyses. Incident photon-to-current conversion efficiency (IPCE) curves were used to explain the cell photocurrent behaviors. |
| |
| Keywords: | Composite film Counter electrode Dye-sensitized solar cell Electrocatalytic activity PProDOT-Et2 |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
