首页|Investigation of defect reduction and hydrogen diffusion in Si/SiO_2 multilayer films by hydrogen radical treatment
Investigation of defect reduction and hydrogen diffusion in Si/SiO_2 multilayer films by hydrogen radical treatment
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In this study, the effect of hydrogen radical (HR) treatment on Si/SiO_2 multilayer (ML) films was investigated, focusing on the reduction of silicon dangling bond (Si-DB) defects and their impact on electrical properties. Electron spin resonance analysis revealed that HR treatment effectively reduced the density of Si-DB defects in Si/SiO_2 ML films. Electrical measurements demonstrated enhanced dark conductivity and reduced activation energy of carriers following HR treatment. These changes were attributed to the reduction in Si-DB defects. Furthermore, the photo- sensitivity of the HR-treated films improved, suggesting that HR treatment is a promising technique for defect reduction and performance enhancement of the solar cells with Si/SiO_2 ML absorbers.