V2O5 및 TeO2 함유 유리를 이용한 염료감응형 태양전지 패널의 레이저 봉착 = Laser Sealing of Dye-Sensitized Solar Cell Panels Using V2O5 and TeO2 Contained Glass

다국어 초록 (Multilingual Abstract)

Effective glass frit compositions enabled to absorb laser energy, and to seal a commercial dye-sensitized solar-cell-panel substratewere developed by using V2O5-based glasses with various amounts of TeO2 substitution. The latter was intended to increase the lifetimeof the solar cells. Substitution of V2O5 by TeO2 provided a strong network structure for the glasses via the formation of tetrahedralpyramids in the glass, and changed the various glass properties, such as glass transition temperature (Tg), dilatometric softening point(Td), crystallization temperature, coefficient of thermal expansion (CTE), and glass flowage without any detrimental effect on the laserabsorption property of the glasses. The thermal expansion mismatch (Δα) between the glass frit and the substrate could be controlledwithin less than ±5% by addition of 10 wt% of β-eucryptite. An 810 nm diode laser was used for the sealing test. The laser sealingtest revealed that the VZBT20 glass frit with 10 wt% β-eucryptite was successfully sealed the substrates without interfacial cracks andpores. The optimum sealing conditions were provided by a beam size of 3 mm, laser power of 40 watt, scan speed of 300 mm/s, and200 irradiation cycles.

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