title: Ag nanoparticles-embedded surface plasmonic InGaN-based solar cells via scattering and localized field enhancement.
abstract: Ag nanoparticles are embedded in intentionally etched micro-circle p-GaN holes by means of a thermal agglomeration process to enhance the light absorption efficiency in InGaN/GaN multi-quantum-well (MQW) solar cells. The Ag nanoparticles are theoretically and experimentally verified to generate the plasmon light scattering and the localized field enhancement near the MQW absorption layer. The external quantum efficiency enhancement at a target wavelength region is demonstrated by matching the plasmon resonance of Ag nanoparticles, resulting in a Jscimprovement of 9.1%. Furthermore, the Ag-nanoparticle-embedded InGaN solar cell is effectively fabricated considering the carrier extraction that more than 70% of F.F. and 2.2 V of high Vocare simultaneously attained.
authors.forename: Jae-Phil
authors.initials: JP
authors.lastname: Shim
authors.forename: Sang-Bae
authors.initials: SB
authors.lastname: Choi
authors.forename: Duk-Jo
authors.initials: DJ
authors.lastname: Kong
authors.forename: Dong-Ju
authors.initials: DJ
authors.lastname: Seo
authors.forename: Hyung-Jun
authors.initials: HJ
authors.lastname: Kim
authors.forename: Dong-Seon
authors.initials: DS
authors.lastname: Lee