公开(公告)号：US20140209169A1

公开(公告)日：2014-07-31

申请号：US14228353

申请日：2014-03-28

Applicant: ASAHI GLASS COMPANY, LIMITED

Inventor： Yu HANAWA ,  Yutaka KUROIWA ,  Tetsuya NAKASHIMA ,  Yuki KONDO

IPC: C03C3/093 ,  H01L31/048 ,  C03C3/087

CPC classification number: H01L31/0488 ,  C03C3/087 ,  C03C3/093 ,  H01L31/03925 ,  H01L31/03928 ,  Y02E10/541 ,  Y02P70/521

Abstract: A glass substrate for a CdTe solar cell includes a base composition includes, in terms of mol % on a basis of following oxides: from 60 to 75% of SiO2; from 1 to 7.5% of Al2O3; from 0 to 1% of B2O3; from 8.5 to 12.5% of MgO; from 1 to 6.5% of CaO; from 0 to 3% of SrO; from 0 to 3% of BaO; from 0 to 3% of ZrO2; from 1 to 8% of Na2O; and from 2 to 12% of K2O, wherein MgO+CaO+SrO+BaO is from 10 to 24%, Na2O+K2O is from 5 to 15%, MgO/Al2O3 is 1.3 or more, (2Na2O+K2O+SrO+BaO)/(Al2O3+ZrO2) is 3.3 or less, Na2O/K2O is from 0.2 to 2.0, Al2O3≧−0.94MgO+11, and CaO≧0.48MgO+6.5.

Abstract translation: 用于CdTe太阳能电池的玻璃基板包括基于以下氧化物的摩尔％的基础组成：60至75％的SiO 2; 1〜7.5％的Al2O3; 0〜1％的B2O3; 8.5〜12.5％的MgO; 1〜6.5％的CaO; 0〜3％的SrO; 0〜3％的BaO; 0〜3％的ZrO2; 1〜8％的Na2O; 和2〜12％的K2O，其中MgO + CaO + SrO + BaO为10〜24％，Na2O + K2O为5〜15％，MgO / Al2O3为1.3以上，（2Na2O + K2O + SrO + BaO ）/（Al 2 O 3 + ZrO 2）为3.3以下，Na 2 O / K 2 O为0.2〜2.0，Al 2 O 3≥0.94MgO+ 11，CaO≥0.48MgO+ 6.5。