Improvement in Power of Shingled Solar Cells for Photo-Voltaic Module

Author:

Jee Hongsub1,Song Jinho1,Moon Daehan1,Lee Jaehyeong2,Jeong Chaehwan1

Affiliation:

1. Applied Optics & Energy R&D Group, Korea Institute of Industrial Technology, Gwangju 61012, Korea

2. School of Electronic & Electrical Engineering, Sungkyunkwon University, Suwon 16418, Korea

Abstract

This paper presents a study on the effects of heat treatment conditions on electrically conductive adhesives. Among the advantages of the shingled solar cells include larger active area and smaller current density since one of the main factors of the power loss is due to a decrease in current density. Therefore, when there is a small current, there is a benefit in regards to the power loss. The advantage of this new technique of developing photovoltaic modules is the increase of module power using the same installed area. Electrically conductive adhesives play an important role in the manufacture of shingled solar cells and understanding the effects of its curing condition is necessary to maximize its output power. Through changing the curing time and temperature, the optimized curing conditions for electrically conductive adhesives and fabricated shingled strings for development of a module could be established. Finally, we demonstrated a 500 mm × 500 mm photovoltaic module with a conventional and the other using the shingled method for purposes of comparison and a shingled module showed about 29% increase in maximum output power compared to a conventional module with the same installed area.

Publisher

American Scientific Publishers

Subject

Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering

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