Energy harvesting of flexible and translucent dye-sensitized solar cell fabricated by laser assisted nano particle deposition system
Energy harvesting of flexible and translucent dye-sensitized solar cell fabricated by laser assisted nano particle deposition system
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DOI：
10.1016/j.electacta.2013.04.050
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发表时间：
2013-07
影响因子：
6.6
通讯作者：
Jin-Woong Lee;J. Choi;Ji-Eun Jeong;Seungkyu Yang;Sung-hoon Ahn;Kee-Won Kwon;C. S. Lee
中科院分区：
文献类型：
--
作者：
Jin-Woong Lee;J. Choi;Ji-Eun Jeong;Seungkyu Yang;Sung-hoon Ahn;Kee-Won Kwon;C. S. Lee
采用激光辅助纳米粒子沉积系统（La-NPDS）制备了TiO 2光电极膜，为柔性半透明染料敏化太阳能电池（DSSC）的制备提供了一种经济有效的方法。在La-NPDS中，TiO 2颗粒通过喷嘴加速朝向基底，超过声速，同时在激光处理的同时诱导烧结。采用La-NPDS法在ITO-PET（铟锡氧化物-聚对苯二甲酸乙二醇酯）基底上制备了厚度为10.55μ m的均匀TiO 2薄膜。原位激光烧结TiO 2使DSSC的效率从1.05%提高到1.92%。此外，由于相邻颗粒之间的紧密连接，激光处理显著增加了DSSC的短路电流和填充因子。颗粒间的颈缩减小了激光处理后的TiO 2层的表面积，导致串联电阻减小，短路电流增大。评估了DSSC作为无线传感器网络能量收集单元的可行性。三个1cm×1cm的DSSC模块与最大功率管理单元相结合，在低至130 mW/cm 2的昏暗灯光下，成功地实现了稳定的电源供应。
A cost-effective way of fabricating flexible and translucent dye-sensitized solar cell (DSSC) was demonstrated by forming TiO2layer for photo-electrode via laser assisted nano particle deposition system (La-NPDS). In the La-NPDS, TiO2particles are accelerated through a nozzle toward the substrate beyond the speed of sound while sintering is being induced concurrently with laser treatment. A uniform and 10.55μm-thick TiO2film was deposited onto indium tin oxide-polyethylene terephthalate (ITO-PET) substrate via La-NPDS using 15nm-diameter TiO2particles. In situ laser sintering of TiO2was found to improve the efficiency of DSSC from 1.05% to 1.92%. Moreover, short circuit current and fill factor of DSSC are significantly increased by laser treatment due to close linking among adjacent particles. The necking among particles decreases the surface area of the laser treated TiO2layer, resulting in decrease of the series resistance and higher short circuit current. The feasibility of the fabricated DSSC as an energy harvesting unit for wireless sensor network was evaluated. Three 1cm×1cm DSSC modules successfully demonstrated as a stable power supply when combined with maximum power management unit under dim light down to 130mW/cm2.