New Numerical Method to Calculate the True Optical Absorption of Hydrogenated Nanocrystalline Silicon Thin Films

• 作者: Fatiha Besahraoui Jamal Dine Sib Larbi Chahed Yahia Bouizem
• 来源期刊: 纳米科学与工程(英文)
• 学科: 物理学
• 关键词: Solution Hydrogenated NANOCRYSTALLINE Silicon Constant PHOTOCURRENT Method Optical Absorption Bulk Light Scattering Surface ROUGHNESS Film Thickness
• 年，卷（期）: 2012,（1）
• 页码范围: 1-5
• 页数: 5页
• 分类号: O48

摘要

The enhanced optical absorption measured by Constant Photocurrent Method (CPM) of hydrogenated nanocrystalline silicon thin films is due mainly to bulk and/or surface light scattering effects. A new numerical method is presented to calculate both true optical absorption and scattering coefficient from CPM absorption spectra of nanotextured nano-crystalline silicon films. Bulk and surface light scattering contributions can be unified through the correlation obtained between the scattering coefficient and surface roughness obtained using our method.