Advanced optics for perovskite-silicon tandem solar cells

用于钙钛矿-硅串联太阳能电池的先进光学器件

• 批准号: 322520834
• 负责人: Professor Dr. Stefan Glunz
• 金额: --
• 依托单位: Fraunhofer-Institut für Solare Energiesysteme (ISE)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/322520834?language=en
• 关键词: Advanced; optics; perovskite; silicon; tandem

Perovskite-silicon tandem solar cells have the potential to overcome the fundamental efficiency limitation of pure silicon solar cells in a cost-effective way. However, currently optical losses limit the practical efficiency of such cells significantly. Therefore, the main goal of the project Advanced optics for perovskite-silicon tandem solar cells (OPoSiT) is the optimization of the optical performance of such tandem cells. The goals of the project are the following 1. Maximization of the light coupling into the system 2. Increasing the absorption of high-energy photons in the perovskite top solar cell 3. Increasing the absorption of photons with lower energy in the silicon bottom cell (with low parasitic absorption) 4. Increasing the short-circuit current of the silicon solar cell by at least 1.5 mA/cm2 These goals will be reached by implementing (i) an effective antireflection structure on the front side, (ii) by highly transparent contact on the perovskite solar cell and between the silicon and perovskite solar cell and (iii) by a very effective light-trapping structure at the rear of the silicon solar cell. For all concepts it is crucial that not only the optical but also the electrical performance and the compatibility with the full process sequence are taken into account.

钙钛矿-硅串联太阳能电池有可能以经济高效的方式克服纯硅太阳能电池的基本效率限制。然而，目前光学损耗大大限制了这种电池的实际效率。因此，钙钛矿型硅串联太阳能电池的先进光学研究项目的主要目标是优化这种串联电池的光学性能。该项目的目标如下：1.最大化进入系统的光耦合2.增加钙钛矿型顶部太阳能电池中高能光子的吸收3.增加硅底电池中较低能量的光子的吸收(具有低寄生吸收)4.增加硅太阳能电池的短路电流至少1.5 mA/cm~2这些目标将通过在正面实施(I)有效的减反射结构来实现，(Ii)通过钙钛矿太阳能电池上的高度透明接触以及硅和钙钛矿太阳能电池之间的高度透明接触，以及(Iii)在硅太阳能电池后部的非常有效的捕光结构。对于所有的概念，不仅要考虑光学性能，而且还要考虑电气性能以及与整个工艺序列的兼容性，这一点至关重要。

项目成果

Perovskite hybrid evaporation/ spin coating method: From band gap tuning to thin film deposition on textures

• DOI: 10.1016/j.tsf.2020.137970
• 发表时间: 2020-06
• 期刊: Thin Solid Films
• 影响因子: 2.1
• 作者: P. Schulze;K. Wienands;A. Bett;S. Rafizadeh;L. E. Mundt;L. Cojocaru;M. Hermle;S. Glunz;H. Hillebrecht;J. Goldschmidt

Optical modeling of structured silicon-based tandem solar cells and module stacks.

结构化硅基串联太阳能电池和模块堆的光学建模

• DOI: 10.1364/oe.26.00a761
• 发表时间: 2018
• 期刊: Optics express
• 影响因子: 3.8
• 作者: N. Tucher;O. Höhn;J. C. Goldschmidt;B. Bläsi
• 通讯作者: B. Bläsi

Advanced module optics of textured perovskite silicon tandem solar cells

• DOI: 10.1117/12.2309768
• 发表时间: 2018-05
• 作者: N. Tucher;O. Höhn;B. Bläsi;J. Goldschmidt

Energy yield analysis of textured perovskite silicon tandem solar cells and modules.

• DOI: 10.1364/oe.27.0a1419
• 发表时间: 2019-09
• 期刊: Optics express
• 影响因子: 3.8
• 作者: N. Tucher;O. Höhn;J. N. Murthy;J. C. Martínez;M. Steiner;A. Armbruster;E. Lorenz;B. Bläsi;J. Goldschmidt