H - Electricity – 01 – L
Patent
H - Electricity
01
L
345/23
H01L 31/04 (2006.01) H01G 9/20 (2006.01)
Patent
CA 1239463
ABSTRACT OF THE DISCLOSURE To obtain an efficiency of about 10% in photo- electrochemical solar cells, the pairing of semi-conductor material for the working electrode and composition of the electrolyte liquid is of critical importance. The semi- conductor material therefore should not be too expensive, and should have a short absorption length for light and be resistant to photocorrosion. Further, a non-toxic electrolyte should be employed permitting operation even without a hermetic seal. The photoelectrochemical solar cell of the invention utilizes a CuInSe2 or CuInS2 in a ternary compound, for the semiconductor material, which is used with an iodine-iodide solution an an electrolyte. In a method of fabricating a substrate for such a clear cell, a surface film is produced on a single-crystal semiconductor material, particularly CuInSe2, or a polycrystalline material, by immersing the semiconductor material after an etching and rinsing process into the electrolyte solution and simultaneously exposing it to light and polarizing it cyclically between two potential limits. Upon repeating this procedure several times, the material is exposed to light at the operating point for a longer time. The film thereby produced yields a p-n junction n the boundary layer. The advantage is a very high potential for an efficient solar energy conversion and the growth of the heterostructure can be controlled.
460597
Bachmann Klaus
Lewerenz Hans-Joachim
Menezes Shalini
Hahn-Meitner-Institut Berlin Gmbh.
Macrae & Co.
LandOfFree
Photoelectrochemical solar cell and method of fabricating a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photoelectrochemical solar cell and method of fabricating a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoelectrochemical solar cell and method of fabricating a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1275871