Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Laser Sealing of Dye-Sensitized Solar Cell Panels Using V2O5 and TeO2 Contained Glass

V2O5 및 TeO2 함유 유리를 이용한 염료감응형 태양전지 패널의 레이저 봉착

  • Cho, Sung Jin (Department of Display Materials Engineering, Soonchunhayng University) ;
  • Lee, Kyoung Ho (Department of Display Materials Engineering, Soonchunhayng University)
  • 조성진 (순천향대학교 디스플레이신소재공학과) ;
  • 이경호 (순천향대학교 디스플레이신소재공학과)
  • Received : 2014.04.03
  • Accepted : 2014.05.03
  • Published : 2014.05.31
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Abstract

Effective glass frit compositions enabled to absorb laser energy, and to seal a commercial dye-sensitized solar-cell-panel substrate were developed by using $V_2O_5$-based glasses with various amounts of $TeO_2$ substitution. The latter was intended to increase the lifetime of the solar cells. Substitution of $V_2O_5$ by $TeO_2$ provided a strong network structure for the glasses via the formation of tetrahedral pyramids in the glass, and changed the various glass properties, such as glass transition temperature ($T_g$), dilatometric softening point ($T_d$), crystallization temperature, coefficient of thermal expansion (CTE), and glass flowage without any detrimental effect on the laser absorption property of the glasses. The thermal expansion mismatch (${\Delta}{\alpha}$) between the glass frit and the substrate could be controlled within less than ${\pm}5%$ by addition of 10 wt% of ${\beta}$-eucryptite. An 810 nm diode laser was used for the sealing test. The laser sealing test revealed that the VZBT20 glass frit with 10 wt% ${\beta}$-eucryptite was successfully sealed the substrates without interfacial cracks and pores. The optimum sealing conditions were provided by a beam size of 3 mm, laser power of 40 watt, scan speed of 300 mm/s, and 200 irradiation cycles.

Keywords

References

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