After a flurry of activity some years ago, new thin film startup producers have been few and far between. Siva Power is proving to be a significant exception to that rule, with the company raising $5 million from five venture capital firms, to construct an R&D pilot line for its copper indium gallium (di)selenide (CIGS) solar production process.
Siva claims its co-evaporation CIGS technology will deliver "the lowest cost solar panels in the world." Siva says the deposition process can deposit a CIGS semiconductor stack "at high rates over a very large area."
Siva Power deploys a three-stage co-evaporation process followed by, what it terms, monolithic integration (MLI), where the CIGS cells are series-connected via an automated laser scribing. The company has previously picked up funding under the U.S. Department of Energy’s Sunshot Initiative.