用于光致水分解的啁啾光子晶体中的宽带塔姆等离激元

Broadband Tamm Plasmons in Chirped Photonic Crystals for Light-Induced Water Splitting.

作者信息

Pyatnov Maxim V, Bikbaev Rashid G, Timofeev Ivan V, Ryzhkov Ilya I, Vetrov Stepan Ya, Shabanov Vasily F

机构信息

Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russia.

Siberian Federal University, 660041 Krasnoyarsk, Russia.

出版信息

Nanomaterials (Basel). 2022 Mar 11;12(6):928. doi: 10.3390/nano12060928.

DOI:10.3390/nano12060928

PMID:35335740

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8952008/

Abstract

An electrode of a light-induced cell for water splitting based on a broadband Tamm plasmon polariton localized at the interface between a thin TiN layer and a chirped photonic crystal has been developed. To facilitate the injection of hot electrons from the metal layer by decreasing the Schottky barrier, a thin n-Si film is embedded between the metal layer and multilayer mirror. The chipping of a multilayer mirror provides a large band gap and, as a result, leads to an increase in the integral absorption from 52 to 60 percent in the wavelength range from 700 to 1400 nm. It was shown that the photoresponsivity of the device is 32.1 mA/W, and solar to hydrogen efficiency is 3.95%.

摘要

一种基于宽带塔姆表面等离激元极化激元的光诱导水分解电池电极已被研制出来，该极化激元局域于薄氮化钛层与啁啾光子晶体之间的界面处。为了通过降低肖特基势垒来促进热电子从金属层注入，在金属层和多层镜之间嵌入了一层薄的n型硅膜。多层镜的啁啾提供了一个大的带隙，结果导致在700至1400纳米波长范围内积分吸收率从52%提高到60%。结果表明，该器件的光响应度为32.1 mA/W，太阳能到氢能的效率为3.95%。