研究目的
To develop a framework to predict and model the photodegradation of adhesion and cohesion of a silicone encapsulant for concentrator photovoltaic applications.
研究成果
The study successfully developed a framework to predict the photodegradation of adhesion and cohesion of a silicone encapsulant for concentrator photovoltaic applications. The model showed good agreement with experimental data, indicating its potential for predicting material behavior under operating conditions. Future work could improve the model by accounting for meteorological variations and the effects of humidity more accurately.
研究不足
The study focused on a specific silicone encapsulant and its interfaces, which may limit the generalizability of the findings to other materials. The model's accuracy could be affected by variations in meteorological conditions and the effects of humidity on degradation rates.
1：Experimental Design and Method Selection:
The study involved artificially weathering silicone encapsulant specimens under narrow band UV filters to determine the effects of individual wavelengths within the UV spectrum on the photodegradation. A fracture mechanics approach was used to measure the adhesion energy.
2：Sample Selection and Data Sources:
Specimens were fabricated to construct a model system of the interface attachment between the silicone encapsulant and the anti-reflective coating of the multijunction cell.
3：List of Experimental Equipment and Materials:
Equipment included UV filters (Semrock 302/10, 335/7, 370/10 BrightLine Bandpass Filters), environmental chamber (AES BHD-508), and a solar concentrator. Materials included a thermally cured polydimethylsiloxane silicone elastomer encapsulant (Dow-Corning Sylgard 184), aluminum oxide, silicon oxide, and a Ti-based primer (Dow-Corning 92-023).
4：3).
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Samples were aged under UV with varying degrees of relative humidity and under narrowband, filtered UV. Mechanical tests were carried out to determine the adhesion energy.
5：Data Analysis Methods:
The adhesion energy was analyzed using a fracture mechanics approach. Surface characterization was carried out on complementary delaminated surfaces to determine failure pathway.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
