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通过蒸汽沉积的高效平面异质连接矿石太阳能电池

Mingzhen Liu¹, Michael B Johnston, Henry J Snaith

¹Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.

|September 13, 2013

概括

使用有机金属化物矿的高效太阳能电池可以在没有复杂的纳米结构的情况下实现. 带有蒸汽沉积矿层的简单平面异质连接装置的功率转换效率超过15%.

科学领域:

材料科学材料科学材料科学
可再生能源可再生能源是可再生能源.
太阳能光伏发电是如何实现的

背景情况:

光伏技术的发展包括基于晶圆,薄膜和纳米结构的太阳能电池.
纳米结构太阳能电池虽然有希望,但尚未实现高效率.
有机金属化物矿显示出高效纳米结构装置的潜力.

研究的目的:

调查纳米结构是否对高效矿太阳能电池至关重要.
用简化的矿设备架构来展示高效的太阳能电池.

主要方法:

使用蒸汽沉积的矿石作为吸收层制造一个平面异质连接太阳能电池.
在模拟的全阳光下测试太阳能到电能转换效率.

主要成果:

实现了超过15%的太阳能电力转换效率.
证明高矿太阳能电池性能不需要纳米结构.

结论:

矿吸收器可以在简化的平面装置结构中实现高效率.
高性能矿太阳能电池不需要复杂的纳米结构,为更容易制造铺平了道路.

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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...