Photovoltaic module package

Patent metadata

Field	Value
Publication number	US-10407338-B2
Application number	US-201715616113-A
Country	US
Kind code	B2
Filing date	Jun 7, 2017
Priority date	Apr 29, 2013
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

Fusion-formable sodium-containing aluminosilicate and boroaluminosilicate glasses are described. The glasses are particularly useful for controlled release of sodium—useful in semiconductor applications, such as thin film photovoltaics where the sodium required to optimize cell efficiency is to be derived from the substrate glass.

First claim

The invention claimed is:

1. A glass comprising, in mol %:
65-80 SiO 2
3-13 Al 2 O 3
0-5.5 B 2 O 3
>0-10 MgO
0-10 CaO
0-10 SrO
1-9 Na 2 O;
>0 and <3.5 K 2 O;

and 1≤R′O≤15, wherein R′O=MgO+CaO+SrO+BaO.

2. The glass of claim 1 , wherein and 2≤R 2 O≤13.1, wherein R 2 O=K 2 O+Na 2 O.

3. The glass of claim 2 , wherein the glass comprises in mol %:
70-77 SiO 2
4.5-10.5 Al 2 O 3
>0-5 B 2 O 3
3-5 MgO
>0-5 CaO
0-5 SrO

and wherein 2.3≤R 2 O≤13.1 and 4.5≤R′O≤12.

4. The glass of claim 1 , wherein the glass comprises in mol %:
65-80 SiO 2
3-13 Al 2 O 3
0-5 B 2 O 3
2-7 MgO
>0-7 CaO
0-6 SrO.

5. The electronic device comprising the glass of claim 1 .

6. The electronic device of claim 5 , wherein the device comprises a photovoltaic module.

7. The glass of claim 1 , wherein the glass has a Na release greater than 10 ppm in a buffered aqueous release test and a total Na+K release of less than 50 ppm in a buffered aqueous release test.

8. The glass of claim 7 , wherein the glass has a T margin =T breakdown −T 35kp >10° C.

9. The glass of claim 7 , wherein the Na+K release is less than 30 ppm.

10. The glass of claim 7 , wherein the glass has a coefficient of thermal expansion greater than 6 ppm/° C.

11. The glass of claim 7 , wherein the glass has a strain point greater than 565° C.

12. The glass of claim 11 , wherein the glass has a strain point greater than 585° C.

13. The glass of claim 7 , wherein the glass has a liquidus viscosity greater than 130 kP.

14. An electronic device comprising the glass of claim 7 .

15. The electronic device of claim 14 , wherein the device comprises a photovoltaic module.

16. A glass comprising, in mol %:
70-77 SiO 2
4.5-10.5 Al 2 O 3
>0-5 B 2 O 3
3-5 MgO
>0-5 CaO
>0-5 SrO
1.8-9 Na 2 O
between 0 and 3.5 K 2 O

wherein 2.3≤R 2 O≤13.1 and 4.5≤R′O≤12, and the glass has a Na release greater than 10 ppm in a buffered aqueous release test and a total Na+K release of less than 30 ppm in a buffered aqueous release test, a T margin =T breakdown −T 35kp >10° C., a coefficient of thermal expansion greater than 6 ppm/° C., and a strain point greater than 565° C.

17. The glass of claim 16 , wherein the glass has a liquidus viscosity of greater than 130 kP.

Assignees

• Corning Inc

Inventors

• Aitken Bruce Gardiner
• Ellison Adam James
• Hamilton James Patrick
• Kiczenski Timothy James

Classifications

• C03C3/091 Primary

  containing aluminium · CPC title

• C03C3/085

  containing an oxide of a divalent metal · CPC title

• C03C3/087

  containing calcium oxide, e.g. common sheet or container glass · CPC title

• Y02E10/541

  CuInSe2 material PV cells · CPC title