期刊
ACS APPLIED ENERGY MATERIALS
卷 3, 期 1, 页码 122-128出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b01732
关键词
kesterite; photovoltaics; in situ transmission electron microscopy (TEM); annealing; cation ordering
资金
- National Research Foundation of Singapore's Competitive Research Program [NRF-CRP16-2015-05]
- Nanyang Technological University [M4081924]
- EPSRC [EP/R014884/1, EP/N024389/1, EP/R021503/1]
- EPSRC [EP/R021503/1, EP/N024389/1, EP/R014884/1] Funding Source: UKRI
Cu2ZnSnS4 nanocrystals are annealed in a Se-rich atmosphere inside a transmission electron microscope. During the heating phase, a complete S-Se exchange reaction occurs while the cation sublattice and morphology of the nanocrystals are preserved. At the annealing temperature, growth of large Cu2ZnSnSe4 grains with increased cation ordering is observed in real-time. This yields an annealing protocol which is transferred to an industrially similar solar cell fabrication process resulting in a 33% increase in the device open circuit voltage. The approach can be applied to improve the performance of any photovoltaic technology that requires annealing because of the criticality of the process step.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据