Details

Autor(en) / Beteiligte

• Li, Qiang
• Du, Kaikai
• Mao, Kening
• Fang, Xu
• Zhao, Ding
• Ye, Hui
• Qiu, Min

Titel

Transmission enhancement based on strong interference in metal-semiconductor layered film for energy harvesting

Ist Teil von

• Scientific reports, 2016-07, Vol.6 (1), p.29195, Article 29195

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2016

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A fundamental strategy to enhance optical transmission through a continuous metallic film based on strong interference dominated by interface phase shift is developed. In a metallic film coated with a thin semiconductor film, both transmission and absorption are simultaneously enhanced as a result of dramatically reduced reflection. For a 50-nm-thick Ag film, experimental transmission enhancement factors of 4.5 and 9.5 are realized by exploiting Ag/Si non-symmetric and Si/Ag/Si symmetric geometries, respectively. These planar layered films for transmission enhancement feature ultrathin thickness, broadband and wide-angle operation, and reduced resistance. Considering one of their potential applications as transparent metal electrodes in solar cells, a calculated 182% enhancement in the total transmission efficiency relative to a single metallic film is expected. This strategy relies on no patterned nanostructures and thereby may power up a wide spectrum of energy-harvesting applications such as thin-film photovoltaics and surface photocatalysis.