Cu(In, Ga)Se2 microcells: High efficiency and low material consumption
Cu(In, Ga)Se2 microcells: High efficiency and low material consumption
复制标题
Cu(In, Ga)Se2 微电池：高效率、低材料消耗
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
D. Lincot
中科院分区：
文献类型：
--
作者：
M. Paire;L. Lombez;F. Donsanti;M. Jubault;S. Collin;J. Pelouard;J. Guillemoles;D. Lincot
众所周知，在集中照明下使用太阳能电池可以提高转换效率，同时减少有源面积，从而减少材料消耗。最近的集中器电池设计倾向于小型化设备，在0.5-1 mm的范围内，由于更高的表面积与体积比，能够实现更好的热疏散。如果单元尺寸进一步缩小到微米范围，扩展阻力损失就可以变得非常小。这对于薄膜技术来说是特别有趣的，该技术到目前为止一直被限制在非常低的浓度系统，从×1到×10，由于窗口层中过多的电阻损失和生长在玻璃衬底上的电池的困难的热管理。研究了一种基于多晶铜(In，Ga)Se2(CIGS)吸收体的新型太阳电池结构：微尺度薄膜太阳电池。由于减小了微电池的横向尺寸(直径为5~500 μm)，大大减少了电阻和热损失，使高性能电池的使用成为可能。
Using solar cells under concentrated illumination is known to improve the conversion efficiency while diminishing the active area and thus material consumption. Recent concentrator cell designs tend to go miniaturized devices, in the 0.5–1 mm range, enabling a better thermal evacuation due to higher surface to volume ratio. If the cell size is further reduced to the micrometric range, spreading resistance losses can be made vanishingly small. This is particularly interesting for the thin film technology which has been limited up to now to very low concentration systems, from ×1 to ×10, due to excessive resistive losses in the window layer and difficult thermal management of the cells, grown on glass substrates. A new solar cell architecture, based on polycrystalline Cu(In,Ga)Se2 (CIGS) absorber, is studied: microscale thin film solar cells. Due to the reduced lateral dimension of the microcells (5 to 500 μm in diameter), the resistive and thermal losses are drastically decreased, enabling the use of high ...