Unveil the Full Potential of Integrated-Back-Contact Perovskite Solar Cells Using Numerical Simulation
Unveil the Full Potential of Integrated-Back-Contact Perovskite Solar Cells Using Numerical Simulation
复制标题
利用数值模拟揭示集成背接触钙钛矿太阳能电池的全部潜力
DOI：
10.1021/acsaem.8b00044
复制
发表时间：
2018
影响因子：
6.4
通讯作者：
Ayumi Hirano-Iwata
中科院分区：
文献类型：
--
作者：
Teng Ma;Qingwen Song;Daisuke Tadaki;Michio Niwano;Ayumi Hirano-Iwata
钙钛矿太阳能电池（PSC）技术正在迅速发展。经过8年的研究，基于平面夹层结构的PSCs在可见光区的量子效率已接近100%。为了进一步提高PSC的性能，对PSC采用有望减少光损失的集成背接触（IBC）结构是一个有前途的选择。在这项工作中，首次使用数值模拟方法来验证IBC结构对PSC的适用性。我们研究了可能影响 IBC-PSC 功率转换效率的因素，证明当我们使用 IBC-PSC 的小接触宽度（≤5 μm）时，IBC-PSC 优于传统的夹层 PSC，并在模拟中报告了钙钛矿薄膜的特性（迁移率 ≥ 10 cm2V–1s–1，寿命 ≥ 1 μs）。通过优化钙钛矿薄膜的性能，我们可以制造出 IBC-PSC，其性能比夹层型 PSC 提高了 11%。目前的结果为高效 IBC-PSC 的设计和制造提供了指导。
The technologies of perovskite solar cells (PSCs) have been developing rapidly. After 8 years of research, the quantum efficiency of PSCs based on the planar sandwich structure has been approaching 100% in the visible light region. In order to further improve the performance of PSCs, adopting an integrated-back-contact (IBC) structure, which is expected to be able to reduce light loss, to the PSCs is a promising option. In this work, a numerical simulation method is, for the first time, used to verify the applicability of the IBC structure to PSCs. We have investigated the factors that may affect the power conversion efficiency of the IBC-PSCs, to demonstrate that IBC-PSCs are advantageous over the traditional sandwich PSCs when we use small contact width (≤5 μm) of the IBC-PSCs and reported characteristics of perovskite films (mobility ≥ 10 cm2V–1s–1, lifetime ≥ 1 μs) in the simulation. By optimizing the properties of perovskite films, we can fabricate IBC-PSCs with 11% of improved performance over that of the sandwich-type PSCs. The present results provide guidelines for the design and fabrication of highly efficient IBC-PSCs.