A novel parallel configuration of dye-sensitized solar cells with double-sided anodic nanotube arrays
A novel parallel configuration of dye-sensitized solar cells with double-sided anodic nanotube arrays
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DOI：
10.1039/c1ee01196k
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发表时间：
2011-06
影响因子：
32.5
通讯作者：
Lidong Sun;Sam Zhang;X. Wang;X. W. Sun;Duen Yang Ong;A. Kyaw
中科院分区：
文献类型：
--
作者：
Lidong Sun;Sam Zhang;X. Wang;X. W. Sun;Duen Yang Ong;A. Kyaw
在基于阳极二氧化钛纳米管阵列的染料敏化太阳能电池中，背照式结构的低光电流阻碍了其发展。为了增加能量吸收，从而促进光电流，提出了一种新的染料敏化太阳能电池的并联配置，并在这项工作的基础上实现了双面阳极纳米管。通过电化学阻抗谱测量来验证并联连接。与单电池相比，并联电池表现出平均70%的光电流增量和30%的效率提高，这是由于表面积显著增加和串联电阻大大降低。理论计算和实验拟合结果表明，对于本研究中采用的背照式结构的纳米管，管长为30 μm是最佳的。
In dye-sensitized solar cells based on anodic titania nanotube arrays, the low photocurrent in the backside-illuminated configuration has hindered their development. To increase the energy absorption and thus promote the photocurrent, a novel parallel configuration of dye-sensitized solar cells is proposed and achieved in this work on the basis of double-sided anodic nanotubes. The parallel connection is verified by electrochemical impedance spectroscopy measurements. The parallel cells exhibit an average 70% increment in photocurrent and 30% enhancement in efficiency as compared to the single cells, due to significantly increased surface area and highly reduced series resistance. Theoretical calculation and experimental fitting results demonstrate that a tube length of ∼30 μm is optimal for the nanotubes used in this study with backside-illuminated architecture.