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Technology Stocks : Energy Conversion Devices -- Ignore unavailable to you. Want to Upgrade?

To: Allen Bucholski who wrote (7546)	2/9/2004 11:20:04 PM
From: Tom Swift	Read Replies (1) \| Respond to of 8393

That's a fairly old paper (2000). Basically what it is grappling with is what are the correct gas specie flows, pressures, and temperatures required to produce high-efficiency cells with good growth rates. The guys at Penn State have since developed a theory based on the idea of using hydrogen dilution ratios (R) to grow at the metastable phase boundary between a-silicon and mc-silicon. This works well in laboratory sized machines, the killer in production is if oxygen shows up in the mix. nrel.gov