Tag Archives: efficiency


Nanowires: Making Quantum Dot Solar Cells Better

Nanowires: Making Quantum Dot Solar Cells Better

While potentially much more efficient, than conventional photovoltaic systems, quantum dot solar cells are still at a pre-commercialization stage. In a new paper, to be published in the journal Advanced Materials, researchers propose to improve quantum dot solar cell design with nanowires. To put it simply, quantum dot is a portion of matter that has


Dye-Sensitized Solar Cells Get More Efficient

A dye-sensitized solar cell is simple to make using conventional roll-printing techniques, is semi-flexible and semi-transparent which offers a variety of uses not applicable to glass-based systems, and most of the materials used are low-cost. However its conversion efficiency is less than the best thin-film cells. Scientists at the Uppsala University now propose a new


Quantum Dot Solar Cell Efficiency Breakthrough Announced

Quantum dot solar cells, an emerging field in solar cell research that uses quantum dots as the absorbing photovoltaic material, could be significantly advanced by a new technique, developed by University of Toronto Engineering Professor Ted Sargent and his research group. In a paper “Jointly-tuned plasmonic-excitonic photovoltaics using nanoshells,” published in the journal Nano Letters,

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The 10 Hottest Green Investment Industries

There are new innovations and ideas generated each day in the cleantech / green sectors. This article helps to separate the hype from the truly revolutionary breakthroughs. Here is a 2011 article from Research White Paper that reviews ten sectors garnering interest from investors. They asked 100 venture capital investors about what types of sub-sectors they


VC’s Focus on Energy Efficiency Companies

Venture capital firms that focus on cleantech are looking for the next big area to invest in, and they seem to have settled on smart grid, energy storage and other efficiency technologies. “We are going through a repositioning of cleantech,” Wal van Lierop, founder of Chrysalix Energy Venture Capital, told Bloomberg. “The big sectors –


The Internet’s Carbon Footprint

Please consider the environment before not printing this page.  That request asking you to kindly not print your last email might have the best of intentions for our environment, but it fails to take into account a major factor which influences the “sustainability” of your decision; the internet.  Advice related to paper and the environment


The Kingtec K25Z-4 Solar Air Conditioner

Kingtec Solar is proud to announce the availability of its 16000 BTU 18.8 E.E.R. Rated air conditioning unit that runs entirely on solar power. Charleston, South Carolina, October 4, 2012 —Driven by a passion to create a window air-conditioner that runs off solar power, Kingtec Solar’s Jamie Edens took inspiration from the DC-powered air-conditioners that cool long-haul


Why Anyone Can Learn How to Design A Zero Net Energy Home

Last year the Northeast Sustainable Energy Association launched a year-round ‘Masters Series’ to extend the reach of  popular Building Energy Conference.  Marc Rosenbaum, one of the most popular presenters at the conference, taught a Zero Net Energy Homes course – I was asked to help as an administrator, and what I witnessed was the greatest


Modern Building Design and Energy Efficiency

While architecture for many years was solely related to the appearance of a building, there have been many changes in recent years. Given the level of environmental awareness that we are all now expected to have, modern architecture is reflective of this. Today’s new buildings are greener and more energy efficient than ever before. We