Opening book details…
Can I read Potential‐free Sodium‐induced Degradation of Silicon Heterojunction Solar Cells on EtoBox?
Potential‐free Sodium‐induced Degradation of Silicon Heterojunction Solar Cells by Xiaodong Li; Yuhao Yang; Kai Jiang; Shenglei Huang; Wenjie Zhao; Zhenfei Li; Guangyuan Wang; Anjun Han; Jian Yu; Dongdong Li; Fanying Meng; Liping Zhang; Zhengxin Liu; Wenzhu Liu is a Engineering article available to read on EtoBox.
What is Potential‐free Sodium‐induced Degradation of Silicon Heterojunction Solar Cells about?
Silicon-based photovoltaic (PV) modules suffer from potential-induced degradation (PID) caused by sodium (Na) permeation, which is present in large quantities in sodalime glass. Here, we report that Na atoms can decrease the performance of amorphous/crystalline silicon heterojunction (SHJ) solar cells without the help of a voltage bias. The three degradation stages are investigated in this work. First, H 2 O molecules open channels for Na transport in the transparent conductive oxide (TCO), while the device performance remains almost unchanged. Next, when Na atoms reach the boron-doped hydrogenated amorphous silicon (p-a-Si:H), the field passivation is poisoned, leading to a great decline in the fill factor (FF), whereas the open-circuit voltage (V oc ) only slightly declines. Finally, Na atoms further diffuse into the intrinsic a-Si:H layer and c-Si surface, resulting in a substantial decrease in V oc . These findings have important implications for the installation of SHJ solar modules in Na-abundant environments. As a feasible solution, we demonstrate that a compact SiO 2 thin film can efficiently prevent H 2 O molecules from penetrating into the TCO layer and therefore guarante
Who reads Potential‐free Sodium‐induced Degradation of Silicon Heterojunction Solar Cells?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Xiaodong Li; Yuhao Yang; Kai Jiang; Shenglei Huang; Wenjie Zhao; Zhenfei Li; Guangyuan Wang; Anjun Han; Jian Yu; Dongdong Li; Fanying Meng; Liping Zhang; Zhengxin Liu; Wenzhu Liu
- Publisher
- Wiley
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)