کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1513227 1511208 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimisation of ITO by Excimer Laser Annealing for a-Si:H/c-Si Solar Cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Optimisation of ITO by Excimer Laser Annealing for a-Si:H/c-Si Solar Cells
چکیده انگلیسی

The role of transparent conducting oxides (TCO) on the front side of amorphous/crystalline (c-Si) silicon heterojunction solar cells (HJ) is of great importance for high efficiency solar cells. They have to fulfil high transparency and high electrical conductivity. Then, device performance can be increased if an appropriate front side scheme is incorporated into the cell device because of a direct impact either on short-circuit current (JSC) and fill factor (FF). Indium Tin Oxide (ITO) has demonstrated to be a very good candidate to get the best optical/electrical compromise: low resistivity values can be achieved thanks to relatively high free carrier concentration (Nd > 2á1020 cm-3), though absorption in the IR range is still a limiting factor for high JSC devices. In this work, we introduce the laser treatments of ITO by Excimer laser annealing (ELA) as an interesting approach to improve the optical/electrical compromise of the material. First, we have studied the changes in material properties when irradiating with different laser conditions. Then, we have looked at the effect of these laser treatments on the passivation properties of HJ precursors. Finally, complete HJ solar cells have been fabricated with laser annealed ITOs at optimal conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 27, 2012, Pages 586-591