| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide method for producing a glass substrate for a solar cell which can improve surface quality and is excellent in devitrification resistance. <P>SOLUTION: The glass substrate for a solar cell contains, by mass, 30 to 70% of SiO<SB POS="POST">2</SB>, 3 to 20% of Al<SB POS="POST">2</SB>O<SB POS="POST">3</SB>, 0 to 10% of B<SB POS="POST">2</SB>O<SB POS="POST">3</SB>, 0 to 10% of MgO, 0 to 10% of CaO, 0 to 25% of SrO, 0 to 25% of BaO, 0 to 10% of Na<SB POS="POST">2</SB>O, 0 to 10% of K<SB POS="POST">2</SB>O, and 0 to 8% of ZrO<SB POS="POST">2</SB>as a glass composition and is characterized in that the thermal expansion coefficient at 30 to 380°C is 50 to 95×10<SP POS="POST">-7</SP>/°C. <P>COPYRIGHT: (C)2013,JPO&INPIT |
