Efficient Dye-Sensitized Solar Cells Using Porphyrin-Based Dyes Covering the Near-IR Regions
Date Issued
2014
Date
2014
Author(s)
Chen, Ming-Che
Abstract
Due to their large molar absorption coefficients, porphyrin-based dyes provide great improvement to the photocurrents of Dye-Sensitized Solar Cells (DSSCs). However, dye aggregation might lower the performance of devices. Therefore, suitable dye soaking conditions are essential.
In this study, a series of porphyrin-based dyes (LWP series) with absorption spectra covering near-IR regions were used in the fabrication of DSSCs. Different dye soaking/washing processes were adopted to lessen dye aggregation and thus to optimize performance of devices. The device performances of DSSCs using porphyrin dyes were further enhanced with co-sensitization. All devices were also characterized by impedance spectroscopy to study effects of dye soaking processes.
Subjects
染料敏化太陽能電池
紫質染料
分子聚集
共敏化
電化學阻抗頻譜
Type
thesis
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