...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Detailed balance limit for solar cell efficiency
【24h】

Detailed balance limit for solar cell efficiency

机译：太阳能电池效率的详细余额限制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The principle of detailed balance was used in 1960 to derive a thermodynamic limit for energy conversion efficiency of semiconductor junction photovoltaic cells. Absorption and emission of photons must be balanced, the cell being a black body. Non-radiative recombinations of solar-generated electron-hole pairs are thus particularly deleterious, affecting silicon junctions. Gallium arsenide, however, is inherently more efficient because of its direct band gap with predominant radiative transitions. The maximal efficiency shows a broad maximum as a function of the semiconductor energy gap. Silicon lies within this maximum. Detailed balance and its applications are reviewed. Current efforts to overcome this limit are discussed. Concentrated illumination enhances efficiencies; multijunction cells - not covered in the detailed balance limit - deliver higher output. Attempts are made to more fully utilize the blue solar spectrum.
机译：详细平衡原理于1960年用于推导半导体结光伏电池能量转换效率的热力学极限。光子的吸收和发射必须是平衡的，细胞是黑体。因此，太阳能产生的电子-空穴对的非辐射复合特别有害，影响了硅结。但是，由于砷化镓具有直接的带隙和主要的辐射跃迁，因此本质上效率更高。最大效率根据半导体能隙显示出很大的最大值。硅位于此最大值之内。审查了详细的余额及其应用。讨论了当前为克服此限制所做的努力。集中照明可提高效率；多结单元-未在详细的余额限制中涵盖-提供更高的输出。试图更充分地利用蓝色太阳光谱。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号