Hydrogenated amorphous silicon thin film solar cells using a hybrid buffer layer of gold nanoparticle and tungsten oxide thin film

Kyoung Soo Yook, Min Seung Choi, Dong Ho Kim, Chang Su Kim, Myung Kwan Song, Jae Wook Kang, Jung Dae Kwon, Youngsoo Jeong, Kee Seok Nam, Sung Hun Lee, Hyung Hwan Jung, Kwun Bum Chung, Tae Sung Bae, Jun Yeob Lee, Seung Yoon Ryu

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A double layer of gold nano particles (Au-NPs) and amorphous tungsten oxide (a-WO3) was employed as a buffer layer on textured fluorine-tin oxide (FTO) glass in pin-type hydrogenated amorphous silicon solar cells (a-Si:H SCs). Au-NPs of ~10 nm size were spin coated and a-WO3 layer was thermally evaporated between Au-NPs on a FTO glass and hydrogenated amorphous p-type Si layer. a-Si:H SCs with a double buffer layer showed higher efficiency of 7% improvement, 8.059% from a value of 7.530%, and increased current density of 8.3% improvement, 14.212 mA/cm2 from a value of 13.120 mA/cm 2, originating from the enhancement of electrical interface contact and bandgap alignment, as well as the slight absorption and surface plasmon resonance effect due to Au-NPs on textured FTO glass.

Original languageEnglish
Pages (from-to)Q42-Q44
JournalECS Solid State Letters
Volume1
Issue number5
DOIs
StatePublished - 2012

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