European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) 2017, pp.1-4
Language
English
Type
Conference Paper
Abstract
In recent decades, building-integrated photovoltaic (BIPV) systems have attracted considerable interest as a potential solution to fulfilling the increasing demands for electricity required in metropolitan areas. BIPV systems could be widely utilized in buildings, not only as windows, but also as transparent roofs, facades, and curtain walls. However, as buildings components, they need to be improved in many ways, and take into consideration such practical design and installation conditions as color, illumination, and lifetime. A particular advantage of BIPV windows is that they may be used to generate electricity in a bifacial fashion, using both sunlight and indoor lighting, simultaneously. Hydrogenated amorphous silicon thin-film solar cells (a-Si:H SCs), are promising candidates for use in such solar windows, as the a-Si:H SCs demonstrate superior operating performance in low illumination conditions ( < 1 sun, where 1 sun = 1 kW/m2) compared with conventional crystalline Si SCs or other thin film SCs [1]. Already, small and portable devices utilizing a-Si:H SCs are in commercial use, where they are powered under indoor lighting sources, such as light-emitting diodes (LEDs), and fluorescent lamps. This suggests that BIPV windows based on a-Si:H SCs are capable of generating electricity in a bifacial operation mode during daylight hours, and may continue to generate electricity in a rear-facial operation mode at nighttime, illuminated by indoor light sources. In addition, large-scale BIPV windows can be fabricated at low cost on large-scale glass substrates, and such Si-based cells exhibit high stability, as has already been well-proven in the field of solar energy, and the display and semiconductor industries [2]. In this study, we design and fabricate bifacial, colored, transparent a-Si:H solar cells for use in BIPV windows. Using two calibrated indoor illumination sources on the front- or rear-side, we investigate the cell performance with respect to different combinations of illumination sources. Furthermore, the reflected colors from both front- and rear-sides of the cell are investigated for each light source combination, and the resulting color of the solar windows is determined by considering both the type and color of the given light sources.
The materials provided on this website are subject to copyrights owned by ETRI and protected by the Copyright Act. Any reproduction, modification, or distribution, in whole or in part, requires the prior explicit approval of ETRI. However, under Article 24.2 of the Copyright Act, the materials may be freely used provided the user complies with the following terms:
The materials to be used must have attached a Korea Open Government License (KOGL) Type 4 symbol, which is similar to CC-BY-NC-ND (Creative Commons Attribution Non-Commercial No Derivatives License). Users are free to use the materials only for non-commercial purposes, provided that original works are properly cited and that no alterations, modifications, or changes to such works is made. This website may contain materials for which ETRI does not hold full copyright or for which ETRI shares copyright in conjunction with other third parties. Without explicit permission, any use of such materials without KOGL indication is strictly prohibited and will constitute an infringement of the copyright of ETRI or of the relevant copyright holders.
J. Kim et. al, "Trends in Lightweight Kernel for Many core Based High-Performance Computing", Electronics and Telecommunications Trends. Vol. 32, No. 4, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
J. Sim et.al, “the Fourth Industrial Revolution and ICT – IDX Strategy for leading the Fourth Industrial Revolution”, ETRI Insight, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
If you have any questions or concerns about these terms of use, or if you would like to request permission to use any material on this website, please feel free to contact us
KOGL Type 4:(Source Indication + Commercial Use Prohibition+Change Prohibition)
Contact ETRI, Research Information Service Section
Privacy Policy
ETRI KSP Privacy Policy
ETRI does not collect personal information from external users who access our Knowledge Sharing Platform (KSP). Unathorized automated collection of researcher information from our platform without ETRI's consent is strictly prohibited.
[Researcher Information Disclosure] ETRI publicly shares specific researcher information related to research outcomes, including the researcher's name, department, work email, and work phone number.
※ ETRI does not share employee photographs with external users without the explicit consent of the researcher. If a researcher provides consent, their photograph may be displayed on the KSP.