Kesterites - a challenging material for solar cells
Kesterites - a challenging material for solar cells
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DOI：
10.1002/pip.2156
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发表时间：
2012-08-01
影响因子：
6.7
通讯作者：
Schorr, Susan
中科院分区：
文献类型：
--
作者：
Siebentritt, Susanne;Schorr, Susan
锌黄锡矿材料（Cu2ZnSn（S，Se）4）由无毒、地球资源丰富且成本低廉的原料制成。我们在这里总结了与太阳能电池相关的结构和电子材料数据。Cu_2ZnSnS_4和Cu_2ZnSnSe_4的平衡结构均为锌黄锡矿结构。然而，亚锡酸盐结构仅具有稍低的结合能。因为预测的锡的带隙约为100？低于锌黄锡矿带隙的MeV，任何锡的混合物都会损害太阳能电池。Cu2ZnSnS4和Cu2ZnSnSe4的带隙分别为1.5和1.0？eV。几乎没有任何关于缺陷的实验。理论上，CuZn反位受主被预测为最可能的缺陷。与黄铜矿相比，锌黄锡矿相的存在范围较小。这使得次级阶段成为太阳能电池开发中的一个严重挑战。版权所有（c）2012约翰威利父子有限公司
Kesterite materials (Cu2ZnSn(S,Se)4) are made from non-toxic, earth-abundant and low-cost raw materials. We summarise here the structural and electronic material data relevant for the solar cells. The equilibrium structure of both Cu2ZnSnS4 and Cu2ZnSnSe4 is the kesterite structure. However, the stannite structure has only a slightly lower binding energy. Because the band gap of the stannite is predicted to be about 100?meV lower than the kesterite band gap, any admixture of stannite will hurt the solar cells. The band gaps of Cu2ZnSnS4 and Cu2ZnSnSe4 are 1.5 and 1.0?eV, respectively. Hardly any experiments on defects are available. Theoretically, the CuZn antisite acceptor is predicted as the most probable defect. The existence region of the kesterite phase is smaller compared with that of chalcopyrites. This makes secondary phases a serious challenge in the development of solar cells. Copyright (c) 2012 John Wiley & Sons, Ltd.