Ethan Good

Nano-Silicon Particle Enhancement of Crystalline Silicon Photovoltaics E.A. Good 16 October 2009 - Changzhou, Jiangsu, China 2nd US-China Workshop on Nanostructured Materials for Global Energy and Environmental Challenges

A SolarWorld

SolarWorld Overview, SWIA

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SolarWorld: Vertical Integration

Quality Yielding Sustainability

SolarWorld Overview, SWIA

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Crystallization Process Technologies

SolarWorld Overview, SWIA

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Device Fabrication Sequence & Nano-Silicon Incorporation Proposal

Front side contact AR coating Emitter Base Back side contact

SolarWorld Overview, SWIA

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Nano-Silicon Research Timeline

Image Courtesy of SiOnyx SolarWorld Overview, SWIA

Dengyuan Song, USNW ARC PHOTOVOLTAICS CENTRE OF EXCELLENCE 2008 Annual Report

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Nano-Scale Characterization of Electro-Mechanical Transitions in Silicon Substrates

o In-situ electrical measurement through a conductive tip enables instantaneous recognition of phase transformations associated with pop-in and pop-outs. o Nano-metals precipitates lead to multiple incidents of pop-out, where individual pop-out results in abrupt jump in the current signal. Current (µA)

(a) Current vs. time plot during an in-situ nanoindentation measurement and (b) shows the corresponding load vs. displacement curves with pop-in and pop-out events. (Inset: shows the dynamic change in the load and corresponding current at pop-out)

Displacement (nm)

Current

Load

Time (sec)

K.Youssef, P. Kulshreshtha, and G. Rozgonyi. JSolarWorld Electrochemical Society. In Press Overview, SWIA

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Innovation at SolarWorld

Thank You for Your Attention

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