Research on Ultraviolet Light Degradation According to Types of Encapsulants for PV Modules

Seungah Ur; RakHyun Jeong; JuHwi Kim; Chanyong  Lee; Jaehyeong Lee

doi:10.21218/CPR.2023.11.4.108

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2023 Vol.11, Issue 4 Preview Page Next Page

Research on Ultraviolet Light Degradation According to Types of Encapsulants for PV Modules 태양광 모듈용 봉지재 종류에 따른 자외선 광열화 연구

31 December 2023. pp. 108-113

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Abstract

Pressure to reduce costs in the current solar market is driving the development and implementation of new module designs and prompting the use of new materials and components. In order to utilize the variability of each material that makes up the module, it is essential to understand the basic characteristics of the material. In this article, we evaluate light degradation after UV irradiation as an encapsulation material. Measure and analyze the results of various characteristic tests for discoloration, optical and electrical property degradation before and after UV accelerated testing. To evaluate weathering stability, UV tests were performed comparing existing EVA and UVT-EVA, POE and improved low-cost POE. Even in the weather resistance test with a total UV exposure of 60 kW/m², the properties of the encapsulants were mostly stable. EVA and POE-based encapsulants showed slight differences, and these slight differences are believed to pose a threat to long-term stability. This study is a basic analysis of encapsulation research for PV modules and will be helpful in understanding future development and encapsulant properties.

Keywords

Photovoltaic modules

Encapsulant

UV irradiation

Polymer degradation

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Information

Publisher :Korea Photovoltaic Society
Publisher(Ko) :한국태양광발전학회
Journal Title :Current Photovoltaic Research
Volume : 11
No :4
Pages :108-113
Received Date : 2023-11-22
Accepted Date : 2023-12-08
DOI :https://doi.org/10.21218/CPR.2023.11.4.108

Current Photovoltaic ResearchISSN:2288-3274(Print) 2508-125X(Online)한국태양광발전학회

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