...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Optical and electrical optimization of all-perovskite pin type junction tandem solar cells
【24h】

Optical and electrical optimization of all-perovskite pin type junction tandem solar cells

机译：All-Perovskite引脚型结串联太阳能电池的光学和电气优化

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

A definitive breakthrough of perovskite solar cells towards large scale industrialization is believed to be the demonstration of higher efficiencies than conventional silicon technology, suggesting the exploration of perovskite tandem cell configurations. Since high efficiency tandem solar cells require careful optimization of photoactive as well as contact and additional functional layers, we propose an optical-electrical model to obtain the optimum layer thicknesses and the attainable electrical output parameters of two-terminal perovskite-perovskite tandem solar cells. The optical model takes into account the coherent propagation of light through the layer stack comprising two perovskite semiconductors and the corresponding contact layers, while the electrical model assumes two series-connected analytical current/voltage equations for pin solar cells. This model allows to assess the impact of the main physical parameters on each perovskite layer without requiring the high specificity needed in more rigorous numerical simulations. Efficiencies above 34% are predicted considering available perovskites with non-optimum bandgap and contact materials already proven in efficient laboratory solar cells. The requisite to attain such efficiencies is that recombination at the interfaces between the perovskite and contact materials is kept low in both bottom and top cells. Furthermore, within the assumption of non-optimum bandgaps of currently available perovskites, the simulation results suggest that efficiencies around 37% are possible when adopting contact materials with smaller absorption, more adequate refraction indices, and lower resistivity.
机译：据信，佩洛斯基特太阳能电池朝向大规模工业化的明确突破，效率高于常规硅技术，表明钙钛矿串联电池配置的探索。由于高效率串联太阳能电池需要仔细优化光活性以及接触和附加功能层，因此我们提出了一种光学电气模型，以获得最佳层厚度和双端Perovskite-Perovskite串联太阳能电池的可达到的电输出参数。光学模型考虑到光的相干传播通过所述层堆叠包括两个钙钛矿半导体和相应的接触层，而电模型假定两个串联连接的分析电流/电压方程pin太阳能电池。该模型允许评估主要物理参数对每个Perovskite层的影响，而不需要更严格的数值模拟所需的高特异性。在34％以上的效率预测，考虑到具有非最佳带隙的佩罗夫斯基茨，并且在高效的实验室太阳能电池中已经证明了接触材料。获得这种效率的必要条件是钙钛矿和接触材料之间的界面的重组在底部和顶部细胞中保持低。此外，在目前可用的钙钛矿的非最佳带隙的假设中，仿真结果表明，在采用具有较小吸收的接触材料，更少量的折射率和较低的电阻率时，效率率大约是37％的效率。

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