Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications
Today, the most common way of laser sealing is using a glass frit paste and screen printer. Laser sealing using glass frit paste has some problems, such as pores, nonuniform height, imperfect hermetic sealing, etc. In order to overcome these problems, sealing using fiber types of sealant is attracti...
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| Format: | Article |
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MDPI AG
2021-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/10/4603 |
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| author | Soyoung Kim Karam Han Seonhoon Kim Linganna Kadathala Jinhyeok Kim Juhyeon Choi |
| author_facet | Soyoung Kim Karam Han Seonhoon Kim Linganna Kadathala Jinhyeok Kim Juhyeon Choi |
| author_sort | Soyoung Kim |
| collection | DOAJ |
| description | Today, the most common way of laser sealing is using a glass frit paste and screen printer. Laser sealing using glass frit paste has some problems, such as pores, nonuniform height, imperfect hermetic sealing, etc. In order to overcome these problems, sealing using fiber types of sealant is attractive for packaging devices. In this work, (70-x)V<sub>2</sub>O<sub>5</sub>-5ZnO-22BaO-3B<sub>2</sub>O<sub>3</sub>-xM(PO<sub>3</sub>)<sub>n</sub> glasses (mol%) incorporated with xM(PO<sub>3</sub>)<sub>n</sub> concentration (where M = Mg, Al, n = 2, 3, respectively) were fabricated and their thermal, thermomechanical, and structural properties were investigated. Most importantly, for this type of sealing, the glass should have a thermal stability (ΔT) of ≥80 °C and the coefficient of thermal expansion (CTE) between the glass and panel should be 1.0 ppm/°C. The highest thermal stability ΔT of the order of 93.2 °C and 112.9 °C was obtained for the 15 mol% of Mg(PO<sub>3</sub>)<sub>2</sub> and Al(PO<sub>3</sub>)<sub>3</sub> doped glasses, respectively. This reveals that the bond strength and connectivity is more strongly improved by trivalent Al(PO<sub>3</sub>)<sub>3</sub>. The CTE of a (70-x)V<sub>2</sub>O<sub>5</sub>-5ZnO-22BaO-3B<sub>2</sub>O<sub>3</sub>-xAl(PO<sub>3</sub>)<sub>3</sub> glass system (mol%) (where x = 5–15, mol%) is in the range of 9.5–15.5 (×10<sup>−6</sup>/K), which is comparable with the CTE (9–10 (×10<sup>−6</sup>/K)) of commercial DSSC glass panels. Based on the results, the studied glass systems are considered to be suitable for laser sealing using fiber types of sealant. |
| first_indexed | 2024-03-10T11:18:33Z |
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| id | doaj.art-e533f640d90540b09e7417158c0b9d3a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T11:18:33Z |
| publishDate | 2021-05-01 |
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| spelling | doaj.art-e533f640d90540b09e7417158c0b9d3a2023-11-21T20:17:50ZengMDPI AGApplied Sciences2076-34172021-05-011110460310.3390/app11104603Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing ApplicationsSoyoung Kim0Karam Han1Seonhoon Kim2Linganna Kadathala3Jinhyeok Kim4Juhyeon Choi5Korea Photonics Technology Institute, 9, Cheomdan Venture-ro 108beon-gil, Buk-gu, Gwangju 61007, KoreaKorea Photonics Technology Institute, 9, Cheomdan Venture-ro 108beon-gil, Buk-gu, Gwangju 61007, KoreaKorea Photonics Technology Institute, 9, Cheomdan Venture-ro 108beon-gil, Buk-gu, Gwangju 61007, KoreaKorea Photonics Technology Institute, 9, Cheomdan Venture-ro 108beon-gil, Buk-gu, Gwangju 61007, KoreaDepartment of Materials Science, Chonnam National University, 77, Yongbong-ro, Buk-gu, Gwangju 61186, KoreaKorea Photonics Technology Institute, 9, Cheomdan Venture-ro 108beon-gil, Buk-gu, Gwangju 61007, KoreaToday, the most common way of laser sealing is using a glass frit paste and screen printer. Laser sealing using glass frit paste has some problems, such as pores, nonuniform height, imperfect hermetic sealing, etc. In order to overcome these problems, sealing using fiber types of sealant is attractive for packaging devices. In this work, (70-x)V<sub>2</sub>O<sub>5</sub>-5ZnO-22BaO-3B<sub>2</sub>O<sub>3</sub>-xM(PO<sub>3</sub>)<sub>n</sub> glasses (mol%) incorporated with xM(PO<sub>3</sub>)<sub>n</sub> concentration (where M = Mg, Al, n = 2, 3, respectively) were fabricated and their thermal, thermomechanical, and structural properties were investigated. Most importantly, for this type of sealing, the glass should have a thermal stability (ΔT) of ≥80 °C and the coefficient of thermal expansion (CTE) between the glass and panel should be 1.0 ppm/°C. The highest thermal stability ΔT of the order of 93.2 °C and 112.9 °C was obtained for the 15 mol% of Mg(PO<sub>3</sub>)<sub>2</sub> and Al(PO<sub>3</sub>)<sub>3</sub> doped glasses, respectively. This reveals that the bond strength and connectivity is more strongly improved by trivalent Al(PO<sub>3</sub>)<sub>3</sub>. The CTE of a (70-x)V<sub>2</sub>O<sub>5</sub>-5ZnO-22BaO-3B<sub>2</sub>O<sub>3</sub>-xAl(PO<sub>3</sub>)<sub>3</sub> glass system (mol%) (where x = 5–15, mol%) is in the range of 9.5–15.5 (×10<sup>−6</sup>/K), which is comparable with the CTE (9–10 (×10<sup>−6</sup>/K)) of commercial DSSC glass panels. Based on the results, the studied glass systems are considered to be suitable for laser sealing using fiber types of sealant.https://www.mdpi.com/2076-3417/11/10/4603V<sub>2</sub>O<sub>5</sub> glassmetaphosphatethermal stabilitylaser sealant |
| spellingShingle | Soyoung Kim Karam Han Seonhoon Kim Linganna Kadathala Jinhyeok Kim Juhyeon Choi Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications Applied Sciences V<sub>2</sub>O<sub>5</sub> glass metaphosphate thermal stability laser sealant |
| title | Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications |
| title_full | Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications |
| title_fullStr | Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications |
| title_full_unstemmed | Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications |
| title_short | Strengthening Thermal Stability in V<sub>2</sub>O<sub>5</sub>-ZnO-BaO-B<sub>2</sub>O<sub>3</sub>-M(PO<sub>3</sub>)<sub>n</sub> Glass System (M = Al, Mg) for Laser Sealing Applications |
| title_sort | strengthening thermal stability in v sub 2 sub o sub 5 sub zno bao b sub 2 sub o sub 3 sub m po sub 3 sub sub n sub glass system m al mg for laser sealing applications |
| topic | V<sub>2</sub>O<sub>5</sub> glass metaphosphate thermal stability laser sealant |
| url | https://www.mdpi.com/2076-3417/11/10/4603 |
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