Development of Wide Band Gap P-a-SiOxCy:H Using Additional Trimethylboron as Carbon Source Gas
- Authors
- Kang, Dong-Won; Sichanugrist, Porponth; Janthong, Bancha; Khan, Muhammad Ajmal; Niikura, Chisato; Konagai, Makoto
- Issue Date
- Jul-2016
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- trimethylboron; p-a-SiOxCy:H; solar cell; amorphous silicon oxide
- Citation
- ELECTRONIC MATERIALS LETTERS, v.12, no.4, pp 462 - 467
- Pages
- 6
- Journal Title
- ELECTRONIC MATERIALS LETTERS
- Volume
- 12
- Number
- 4
- Start Page
- 462
- End Page
- 467
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/74936
- DOI
- 10.1007/s13391-016-4007-y
- ISSN
- 1738-8090
2093-6788
- Abstract
- We report p-type a-SiOxCy:H thin films which were fabricated by introducing additional Trimethylboron (TMB, B(CH3)(3)) doping gas into conventional standard p-type a-SOi(x):H films. The TMB addition into the condition of p-a-SiOx,:H improved optical bandgap from 2.14 to 2.20 eV without deterioration of electrical conductivity, which is promising for p-type window layer of thin film solar cells. The suggested p-a-SiOxCy:H films were applied in amorphous silicon solar cells and we found an increase of quantum efficiency at short wavelength regions due to wide bandgap of the new p-layer, and thus efficiency improvement from 10.4 to 10.7% was demonstrated in a-Si:H solar cell by employing the p-a-SiOxCy:H film. In case of a-SiOx:H cell, high open circuit voltage of 1.01 V was confirmed by using the suggested the p-a-SiOxCy:H film as a window layer. This new player can be highly promising as a wide bandgap window layer to improve the performance of thin film silicon solar cells.
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