1[treated as singular] The branch of technology concerned with the production of electric current at the junction of two substances.
- ‘Similarly, Congress ought to greatly accelerate research into photovoltaics and into electrochemistry for next generation batteries.’
- ‘The field of photovoltaics - the direct conversion of sunlight to electricity - has evolved at an incredible pace over the past several decades.’
- ‘The latest research could finally bring photovoltaics out of the background of the energy debate, based on recent findings that show nanotechnologies can trap light in solar cells, potentially reducing the cost of solar energy.’
- ‘Technologies of photovoltaics, hydrogen and fuel cell development are more advanced, and a combination of technology and motivation could be harnessed to slow down the gas guzzling machinery that gives the country such a bad name.’
- ‘Solar-powered accessories make use of a technology called photovoltaics.’
- 1.1[treated as plural] Devices having a photovoltaic junction.
- ‘Generating costs for electricity from photovoltaics range from 25 cents to $1 per kilowatt hour, which is extremely high compared to electricity generated by coal or nuclear power plants.’
- ‘We need to invest in biofuels here at home, in bio diesel, ethanol, hydrogen, fuel cells, photovoltaics, wind turbines, geothermal, all the sources of power we have ignored all these years.’
- ‘Microturbines, fuel cells, photovoltaics, solar cells, and even conventional, small-scale generators have been improved in terms of lifecycle cost per kilowatt-hour.’
- ‘Then the electricity from the photovoltaics will could be used to run hydrolysis reactions to produce hydrogen from water.’
- ‘Solar cells, or photovoltaics, convert light to electricity and are used to power many devices, from calculators to satellites.’
We take a look at several popular, though confusing, punctuation marks.