The PV modules are inevitably installed outdoors and receive direct sunlight. Therefore, protective glass or film is required to protect the surface of the PV module from the wind, rain, snow and dust, and other environments. However, the incident light is reflected from the surfaces of these protective layers, resulting in a considerable efficiency loss. In this study, we developed a moth-eye structure with HSQ using a direct-transfer printing process to fabricate anti-reflective coatings on the protective glass. In addition, we also conducted long-term field tests to monitor and measure the impact of the fabricated anti-reflective structures and durability against environmental factors. The transmittance of the glass substrate increased to 95.0% as a result of the fabricated SiOx-based moth-eye patterns. In addition, the PV module with the moth-eye-patterned protective glass generated 7.88% more electricity compared to that without the moth-eye-patterned glass during 1-year field test.
Bibliographical noteFunding Information:
This research was supported by the R&D program for Industrial Core Technology through the Korea Evaluation Institute of Industrial Technology supported by the Ministry of Knowledge Economy in Korea (Grant No. 10040225), the Commercializations Promotion Agency for R&D Outcomes (COMPA) funded by the Ministry of Science, ICT and Future Planning (MSIP) (2016K000129) and Nano·Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012M3A7B4035323).
- Direct-transfer printing
- Monitoring test
- Photovoltaic system
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films