Methods to Improve Bulk Lifetime in n-Type Czochralski-Grown Upgraded Metallurgical-Grade Silicon Wafers
This paper investigates the potential of three different methods-tabula rasa (TR), phosphorus diffusion gettering (PDG), and hydrogenation, for improving the carrier lifetime in n-type Czochralski-grown upgraded metallurgical-grade (UMG) silicon samples. Our results show that the lifetimes in the UMG wafers used in this study were affected by both mobile metallic impurities and as-grown oxygen precipitate nuclei. Thus, the dissolution of grown-in oxygen precipitate nuclei via TR and the removal...[Show more]
|Collections||ANU Research Publications|
|Source:||IEEE Journal of Photovoltaics|
|01_Basnet_Methods_to_Improve_Bulk_2018.pdf||898.88 kB||Adobe PDF|
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