Research on light absorption efficiency of P3HT:PCBM-based solar cells improved by triple grating structure

IF 2.5 3区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2025-06-27 DOI:10.1016/j.photonics.2025.101380

Ruijie Xie , Aodi Shi , Fanghao Shui , Hengdi Wang , Xiaokang Yang

{"title":"Research on light absorption efficiency of P3HT:PCBM-based solar cells improved by triple grating structure","authors":"Ruijie Xie , Aodi Shi , Fanghao Shui , Hengdi Wang , Xiaokang Yang","doi":"10.1016/j.photonics.2025.101380","DOIUrl":null,"url":null,"abstract":"<div><div>In this paper, a novel triple-layer grating structure is proposed to improve light absorption efficiency of P3HT:PCBM-based solar cell. The periodic Ag grating is fabricated at bottom of P3HT:PCBM photosensitive layer and Ag electrode to excite surface plasmons (SPs). The excited SPs can greatly enhance electromagnetic field intensity around Ag grating, which can improve chance and efficiency of interaction between photons and photosensitive layer, and enhance light absorption efficiency of solar cell. The periodic indium tin oxide (ITO) grating and PEDOT:PSS grating is fabricated by etching rectangular grooves on top of ITO layer and depositing PEDOT:PSS layer. The light-trapping effect generated by grating allows light to be reflected and refracted multiple times inside solar cell, which can further increase chance of interaction between photons and photosensitive layer, and enhance light absorption efficiency of solar cell. The COMSOL software is used to simulate and optimize parameters of the novel structure. The light reflectivity, light transmissivity and metal absorption loss of photons at different structural parameters are obtained, and the light absorption efficiency is calculated. The simulation results show that light absorption efficiency of the novel structure is almost above 90 % at wavelength range of 400–500 nm in TM mode and almost above 90 % at wavelength range of 450–500 nm in TE mode. This research provides a reliable foundation for development of the novel P3HT:PCBM-based solar cell with high light absorption efficiency.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"66 ","pages":"Article 101380"},"PeriodicalIF":2.5000,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photonics and Nanostructures-Fundamentals and Applications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1569441025000306","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

In this paper, a novel triple-layer grating structure is proposed to improve light absorption efficiency of P3HT:PCBM-based solar cell. The periodic Ag grating is fabricated at bottom of P3HT:PCBM photosensitive layer and Ag electrode to excite surface plasmons (SPs). The excited SPs can greatly enhance electromagnetic field intensity around Ag grating, which can improve chance and efficiency of interaction between photons and photosensitive layer, and enhance light absorption efficiency of solar cell. The periodic indium tin oxide (ITO) grating and PEDOT:PSS grating is fabricated by etching rectangular grooves on top of ITO layer and depositing PEDOT:PSS layer. The light-trapping effect generated by grating allows light to be reflected and refracted multiple times inside solar cell, which can further increase chance of interaction between photons and photosensitive layer, and enhance light absorption efficiency of solar cell. The COMSOL software is used to simulate and optimize parameters of the novel structure. The light reflectivity, light transmissivity and metal absorption loss of photons at different structural parameters are obtained, and the light absorption efficiency is calculated. The simulation results show that light absorption efficiency of the novel structure is almost above 90 % at wavelength range of 400–500 nm in TM mode and almost above 90 % at wavelength range of 450–500 nm in TE mode. This research provides a reliable foundation for development of the novel P3HT:PCBM-based solar cell with high light absorption efficiency.

查看原文本刊更多论文

三光栅结构提高P3HT: pcbm基太阳能电池光吸收效率的研究

为了提高P3HT: pcbm太阳能电池的光吸收效率，提出了一种新型的三层光栅结构。在P3HT:PCBM光敏层底部和Ag电极处制作了周期Ag光栅，以激发表面等离子体。激发的SPs能大大增强Ag光栅周围的电磁场强度，提高光子与光敏层相互作用的机会和效率，提高太阳能电池的光吸收效率。通过在ITO层顶部蚀刻矩形凹槽，沉积PEDOT:PSS层，制备了周期性氧化铟锡（ITO）光栅和PEDOT:PSS光栅。光栅产生的捕光效应使光在太阳能电池内部被多次反射和折射，进一步增加了光子与光敏层相互作用的机会，提高了太阳能电池的光吸收效率。利用COMSOL软件对新型结构进行了仿真和参数优化。得到了不同结构参数下光子的反射率、透过率和金属吸收损失，并计算了光吸收效率。仿真结果表明，在TM模式下，该结构在400 ~ 500 nm波长范围内的光吸收效率几乎在90 %以上，在TE模式下，在450 ~ 500 nm波长范围内的光吸收效率几乎在90 %以上。该研究为开发新型高光吸收效率的P3HT: pcbm太阳能电池提供了可靠的基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Photonics and Nanostructures-Fundamentals and Applications 工程技术-材料科学：综合

CiteScore

5.00

自引率

3.70%

发文量

审稿时长

62 days

期刊介绍： This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.