A Study on the Effect of Various Initiators of Acrylic Binder for Low-Temperature Curing Silver Paste

Jiyeon Moon; Hyunsoo Lim; Godeung Park; Hyeryeong Nam; Da Yeong Jun; Zulmandakh Otgongerel; Oryeon Kwon; Sung Hyun Kim

doi:10.7836/kses.2023.43.5.009

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2023 Vol.43, Issue 5 Preview Page Next Page

Research Article

A Study on the Effect of Various Initiators of Acrylic Binder for Low-Temperature Curing Silver Paste 저온 경화 은 페이스트 용 아크릴계 바인더의 다양한 개시제의 영향에 관한 연구

30 October 2023. pp. 9-17

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Abstract

In heterojunction (HJT) solar cells, an amorphous silicon passivation layer is attached to the top and bottom of a crystalline silicon layer. HJT solar cells are manufactured at approximately 200°C because the structure of amorphous Si:H changes at high temperatures. Therefore, the silver paste utilized as an electrode on HJT solar cells should be subsequently cured at low temperatures below 200°C. In addition, the electrode requires good conductivity even at low curing temperatures. An initiator in the binder is crucial for the production of silver paste capable of low-temperature curing. This study investigated the effects of various initiators on the characteristics of a binder and silver paste that can be cured at low temperatures. Differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) were operated to investigate the initiation and thermal decomposition properties of binders. The relationship between gel contents and the electrical conductivity of cured pastes was explored to reveal the impact of the curing ratio on electrical conductivity. The appropriate utilization of the initiator resulted in a high curing rate, which in turn increased the electrical conductivity.

Keywords

Silver paste

Low-temperature curing

Acrylic binder

Initiator

Gel contents

Resistivity

키워드

은 페이스트

저온 경화

아크릴계 바인더

개시제

겔 함량

비저항

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Information

Publisher :Korean Solar Energy Society
Publisher(Ko) :한국태양에너지학회
Journal Title :Journal of the Korean Solar Energy Society
Journal Title(Ko) :한국태양에너지학회 논문집
Volume : 43
No :5
Pages :9-17
Received Date : 2023-04-24
Revised Date : 2023-06-21
Accepted Date : 2023-08-31
DOI :https://doi.org/10.7836/kses.2023.43.5.009

Journal of the Korean Solar Energy Society 한국태양에너지학회 논문집 ISSN:1598-6411(Print) 2508-3562(Online)

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