Solar cell with high-temperature front electrical contact,...

Details Solar cell with high-temperature front electrical contact,... Solar cell with high-temperature front electrical contact,...

2007-10-23

2007-10-23

Nguyen, Nam (Department: 1753)

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

C136S261000, C136S262000, C427S074000

Reexamination Certificate

active

10623900

ABSTRACT:
A solar cell has an active semiconductor structure and a back electrical contact overlying and contacting an active semiconductor structure back side. A front electrical contact is applied overlying and contacting the active semiconductor structure front side. The front electrical contact has multiple layers including a titanium layer overlying and contacting the active semiconductor structure front side, a diffusion layer overlying and contacting the titanium layer, a barrier layer overlying and contacting the diffusion layer, and a joining layer overlying and contacting the barrier layer. The front electrical contact may be applied by sequentially vacuum depositing the titanium layer, the diffusion layer, the barrier layer, and the joining layer in a vacuum deposition apparatus in a single pumpdown from ambient pressure. A front electrical lead is affixed overlying and contacting an attachment pad region of the front electrical contact.

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Studer, V., Pepin, A., Chen, Y., Ajdari, A., “Fabrication of microfluidic devices for AC electrokinetic fluid pumping”, Microelectronic Engineering, 61-62, 2002, pp. 915-920.

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