U.S. Government Researchers Validate High Energy Capability of Nanoparticles, Key to Octillion’s NanoPower Windows

Silicon nanoparticles show high-energy effect capable of converting more of the sun’s energy to electricity in Department of Energy study; Power performance of solar cells boosted by 60-70% in separate study of nanoparticles used in Octillion’s NanoPower Windows.

Vancouver, BC – August 21, 2007 – Octillion Corp. (OTCBB: OCTL) today announced that researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) have observed a new and important high-energy effect in silicon nanoparticles – the principal material used in Octillion’s NanoPower Window technology – which results in a process where more of the sun’s energy is converted into electricity.

“This third-party research by NREL validates our long-held belief that silicon nanoparticles have the ability to generate significant energy from sunlight,” explained Mr. Harmel S. Rayat, President and CEO of Octillion Corp. “These research findings also support our recent decision to accelerate development and double our research funding following encouraging outcomes and completion of our developmental prototype window, a major breakthrough milestone.”

Octillion is developing the first-of-its-kind transparent glass window capable of generating electricity using silicon nanoparticles.  Last week, in a published study unrelated to the NREL findings, researchers reported that the nanoparticles used in Octillion’s NanoPower Window technology are able to substantially increase the power performance of conventional solar cells by 60-70% in the ultraviolet-blue range and significantly boost power by as much as 10% in the visible light range.

In separate research published in the most cited source for nanoscience and nanotechnology (American Chemical Society’s Nano Letters Journal; July 24, 2007), NREL scientists reported that silicon nanocrystals can produce more than one electron from single photons of sunlight, a phenomenon referred to as Multiple Exciton Generation (MEG).  When today’s conventional photovoltaic solar cells absorb a photon of sunlight, about 50 percent of the incident energy is lost as heat.  MEG provides a way to convert some of this energy lost as heat into additional electricity.

Importantly, the silicon nanoparticles used in Octillion’s NanoPower Window technology are able to successfully convert the same UV components that typically cause damage and create wasteful heat into useful electrical energy, a recently published finding. (American Institute of Physics’ Applied Physics Letters; August 6, 2007)

According to the NREL, until now MEG has only been reported to occur in: nanocrystals made of materials not currently used in commercial solar cells; and generally unsafe materials such as lead.  In contrast, Octillion’s high-energy nanoparticles are made of silicon, a toxicologically inert substance and the world’s most abundant, naturally-occurring element, second only to oxygen.  Octillion’s NanoPower Window technology exclusively makes use of nanoparticles from silicon.

SolarWindow Technologies, Inc. creates transparent electricity-generating liquid coatings. When applied to glass or plastics, these coatings convert passive windows and other materials into electricity generators under natural, artificial, low, shaded, and even reflected light conditions.

Our liquid coating technology has been presented to members of the U.S. Congress and received recognition in numerous industry publications. Our SolarWindow™ technology may generate 50-times the power of a conventional rooftop solar system and may achieve a one-year payback when installed on all four sides of a 50-story building, according to independently-validated power and financial modeling.

Power and Financial Model Disclaimer

The company's Proprietary Power Production & Financial Model (Power & Financial Model) uses photovoltaic (PV) modeling calculations, which are consistent with renewable energy practitioner standards for assessing, evaluating and estimating renewable energy for a PV project. The Power & Financial Model estimator takes into consideration building geographic location, solar radiation for flat-plate collectors (SolarWindow™ irradiance is derated to account for 360 degrees building orientation and vertical installation), climate zone energy use and generalized skyscraper building characteristics when estimating PV power and energy production, and carbon dioxide equivalents. Actual power, energy production and carbon dioxide equivalents modeled may vary based upon building-to-building situational characteristics and varying installation methodologies.

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