Chemical Properties of the Cu(In,Ga)Se2/Mo/glass Interfaces in Thin Film Solar Cells
The Cu(In,Ga)Se{sub 2}/Mo and the Mo/glass interfaces in high efficiency thin film solar cells have been investigated by surface-sensitive photoelectron spectroscopy and bulk-sensitive X-ray emission spectroscopy. The interfaces were accessed by a suitable lift-off technique. Our experiments show a strong Se diffusion from the absorber into the Mo film, suggesting the formation of a MoSe{sub 2} layer in the surface-near region of the back contact. In addition, we find a Ga diffusion into the Mo back contact, while no diffusion of In and Cu occurs. Furthermore, we derive a detailed picture of the Na distribution near the back and front side of the Cu(In,Ga)Se{sub 2} absorber.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC36-99GO10337
- OSTI ID:
- 915632
- Journal Information:
- Thin Solid Films, Journal Name: Thin Solid Films Journal Issue: 2007 Vol. 515; ISSN THSFAP; ISSN 0040-6090
- Country of Publication:
- United States
- Language:
- English
Similar Records
Structure and interface chemistry of MoO{sub 3} back contacts in Cu(In,Ga)Se{sub 2} thin film solar cells
Nondestructive depth-resolved spectroscopic investigation of the heavily intermixed In2S3/Cu(In,Ga)Se2 interface
X-Ray and Electron Spectroscopy of the CdS/(Ag,Cu)(In,Ga)Se2 Interface With RbF Treatment
Journal Article
·
Mon Jan 20 23:00:00 EST 2014
· Journal of Applied Physics
·
OSTI ID:22275699
Nondestructive depth-resolved spectroscopic investigation of the heavily intermixed In2S3/Cu(In,Ga)Se2 interface
Journal Article
·
Tue Apr 06 00:00:00 EDT 2010
· Applied Physics Letters
·
OSTI ID:986546
X-Ray and Electron Spectroscopy of the CdS/(Ag,Cu)(In,Ga)Se2 Interface With RbF Treatment
Journal Article
·
Tue Mar 11 00:00:00 EDT 2025
· Advanced Materials Interfaces
·
OSTI ID:2555743