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研究领域物理科学原子,分子和光学物理太赫兹物理
关于"光诱导的格子扩张导致高效矿太阳能电池"的评论

关于"光诱导的格子扩张导致高效矿太阳能电池"的评论

Nicholas Rolston ¹, Ross Bennett-Kennett ², Laura T Schelhas ³, Joseph M Luther ⁴, Jeffrey A Christians ⁴, Joseph J Berry ^4,5,6, Reinhold H Dauskardt ⁷

Nicholas Rolston ¹, Ross Bennett-Kennett ², Laura T Schelhas ³

¹Department of Applied Physics, Stanford University, Stanford, CA, USA.
²Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA.
³Applied Energy Division, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
⁴National Renewable Energy Laboratory, Golden, CO, USA.
⁵Renewable and Sustainable Energy Institute, University of Colorado, Boulder, CO, USA.
⁶Department of Physics, University of Colorado, Boulder, CO, USA.
⁷Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA. dauskardt@stanford.edu.

⁰Department of Applied Physics, Stanford University, Stanford, CA, USA.

Clinical Neuroscience (new York, N.y.) +

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2020年四月18日

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在PubMed上查看摘要

概括

此摘要是机器生成的。

暴露在光线下会导致金属化膜膨胀. 这项研究表明,观察到的格子膨胀主要是由于热引起的热膨胀,而不是光本身.

科学领域

材料科学
固态物理
太阳能发电

背景情况

金属化是有前途的光伏材料.
了解它们对照明的反应对于设备的稳定性至关重要.
和其他人. 据报道,光线引起的格子扩张,不包括热效应.

研究的目的

在照明下研究金属化膜的晶格膨胀背后的机制.
要确定光或热是否是格子扩张的主要驱动因素.
重新评估Tsai等人的研究结果. 关于光引起的膨胀.

主要方法

在矿薄膜上进行控制温度的实验.
在黑暗和照明条件下在不同温度下对薄膜扩张的比较分析.
用光谱分析监测格子参数.

主要成果

在照明下观察到矿膜格子的膨胀.
控制温度的实验显示膨胀与温度的增加有关.
观察到的膨胀完全符合热引起的热膨胀.

结论

在1-太阳照明下,金属化膜的晶格膨胀主要是由热引起的热膨胀引起的.
这些发现挑战了仅仅将膨胀归因于光效应的观点.
精确的热管理对于矿太阳能电池的稳定性至关重要.

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相关概念视频

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

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