Silicon heterojunction (SHJ) solar cells formed using n-type Cz silicon wafers are attracting increasing industrial interest. Cheaper p-type Cz silicon wafers can also be used to form SHJ cells; however, they achieve lower efficiencies. In this work, a Monte Carlo simulation approach is used to provide a comprehensive commercial comparison between n-type and p-type wafers, considering a wide range of uncertainty in the cost of production, the cost of the wafers, and cell performance. The most critical factors influencing the commercial comparison between wafer types were identified as the difference in cell efficiency, the difference in cost between n-type and p-type wafers, and the SHJ processing costs. The analysis provides a target for p-type SHJ solar cells of being within 0.4% absolute of that obtained with n-type wafers. This work motivates and sets research targets for the development of SHJ solar cells fabricated on p-type wafers.

使用n型Cz硅晶片形成的硅异质结（SHJ）太阳能电池吸引了越来越多的工业兴趣。较便宜的p型Cz硅晶片也可用于形成SHJ电池。但是，它们的效率较低。在这项工作中，考虑到生产成本，晶圆成本和电池性能的各种不确定性，使用蒙特卡罗模拟方法对n型和p型晶圆进行全面的商业比较。确定影响晶片类型之间商业比较的最关键因素是电池效率的差异，n型和p型晶片之间的成本差异以及SHJ加工成本。该分析为p型SHJ太阳能电池提供的目标绝对值在n型晶圆获得的绝对值的0.4％以内。