期刊
ORGANIC ELECTRONICS
卷 51, 期 -, 页码 422-427出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2017.09.009
关键词
Polymer solar cells; Light trapping; Diatom frustules; Nanophotonics; Biomimicry
资金
- National Science Foundation [MRSEC DMR 1119826, CBET-1604524]
- NSF-PECASE [CBET-0954985]
- YINQE
- NSF MRSEC DMR [1119826]
- Yale Climate & Energy Institute
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0954985] Funding Source: National Science Foundation
We demonstrate the use of fossilized diatoms (diatomaceous earth) as light traps in regioregular poly(3-hexylthiophene) (P3HT) and fullerene derivative [6,6]-phenyl-C-60-butyric acid methyl ester (PCBM) solar cells. Diatoms, the most common type of phytoplankton found in nature, are optimized for light absorption through millions of years of adaptive evolution. They are also an earth-abundant source of silica that can be incorporated into polymer solar cells without the need for complicated processing. Here we establish protocols dispersing the diatomaceous earth throughout the P3HT:PCBM active layer with characterization by optical and current-voltage measurements. We show that through the addition of diatomaceous earth, we can achieve the same power conversion efficiencies as standard thickness cells while using 36% thinner active layers. We find that adding the diatomaceous earth acts as a scattering center and textures the silver back contact, contributing to increases in the optical path length within devices. Results from this study open up pathways for incorporating hierarchical materials from nature into energy conversion devices. (c) 2017 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据