Hydrogenated Amorphous Silicon Thin Film Solar Cells Using a Hybrid Buffer Layer of Gold Nanoparticle and Tungsten Oxide Thin Film

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 evap...

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Bibliographic Details
Published in:ECS solid state letters 2012-08, Vol.1 (5), p.Q42-Q44
Main Authors: Yook, Kyoung Soo, Choi, Min Seung, Kim, Dong Ho, Kim, Chang Su, Song, Myung Kwan, Kang, Jae Wook, Kwon, Jung Dae, Jeong, Youngsoo, Nam, Kee Seok, Lee, Sung Hun, Jung, Hyung Hwan, Chung, Kwun Bum, Bae, Tae-Sung, Lee, Jun Yeob, Ryu, Seung Yoon
Format: Article
Language:English
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Summary: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/cm2, 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.
ISSN:2162-8742
2162-8750
DOI:10.1149/2.009205ssl