Defect control for high-performance green kesterites energy materials

该项目将解决四元化合物锌黄锡矿缺陷控制的根本挑战，彻底改变我们理解隐藏缺陷演化过程的方式，并相应地设计有效的缺陷控制方法。这将通过一种系统的方法来实现，该方法集成了多尺度材料表征、工艺和材料建模，并将微观局部化学势和宏观加工条件以及相关的化合物性质和器件性能联系起来，以控制缺陷的演变。该项目的成功实施将充分发挥锌黄锡矿在光伏和光电化学应用中的潜力，并导致其他复合能源材料的新发现。

This project will tackle the fundamental challenge of defect control of the quaternary compound kesterite, revolutionizing the way we can understand the hidden defect-evolution process and design accordingly effective defect-control approaches. This will be realized by a systematic approach integrating multiscale materials characterization, process and materials modeling, and linking microscopic local chemical potential and macroscopic processing conditions, and associated compound properties and device performance to control defects evolution. Successfully achieved, this project will realize full potential of kesterite in photovoltaic and photoelectrochemical applications, and leading to new discoveries in other compound energy materials.