摘要
为提高宽带光吸收效率,提出一种新型的双直径纳米柱结构(DNPL),小直径的部分具有较小的反射率,大直径的部分具有较大的有效吸收系数。通过适当选择双直径纳米柱结构的两个部分的直径,可以进一步增强所提出结构的实用性。文章利用SILVACO仿真对上述结构进行模拟,结果表明,与传统单直径纳米柱结构(NPL)相比,双直径纳米柱结构的性能参数有显著的改进。此外,随着两部分高度之比的增加,器件的开路电压(V_(oc))、短路电流密度(J_(sc))、填充因子(FF)和电池转换效率(η)等性能参数均有所增加。
In order to improve the broadband light absorption efficiency,a novel dual-diameter nanopillar structure(DNPL) is presented.The small diameter tip has smaller reflectivity and the large diameter part has larger effective absorption coefficient.The practicability of the proposed structure can be further enhanced by properly selecting the diameters of the two parts of the dual-diameter nanopillar structure.The results show that the performance parameters of dual-diameter nanopillar structure are significantly improved,compared with its equivalent planar p-n junction counterpart and single-diameter nanopillar structure(NPL).In addition,with the increase of the height ratio of the two parts,the open circuit voltage(V_(oc)),short circuit current density(J_(sc)),filling factor(FF) and photo-electric conversion efficiency(η) of the device,as well as other performance parameters,have increased.
作者
戴万玲
王钰妍
DAI Wanling;WANG Yuyan
出处
《科技创新与应用》
2022年第14期15-18,共4页
Technology Innovation and Application
关键词
TCAD
太阳能电池
光电转换效率
纳米柱阵列
TCAD simulator
solar cell
photo-electric conversion efficiency(η)
nanopillar
作者简介
戴万玲(1994-),女,硕士研究生在读,研究方向为半导体器件-太阳能电池仿真。
