Environmentally friendly solar cell pushes forward the ‘next big thing in photovoltaics’

Science Focus

original post »

EVANSTON, Ill. — Northwestern University researchers are the first to develop a new solar cell with good efficiency that uses tin instead of lead perovskite as the harvester of light. The low-cost, environmentally friendly solar cell can be made easily using “bench” chemistry — no fancy equipment or hazardous materials. “This is a breakthrough in taking the lead out of a very promising type of solar cell, called a perovskite,” said Mercouri G. Kanatzidis, an inorganic chemist with expertise in dealing with tin. “Tin is a very viable material, and we have shown the material does work as an efficient solar cell.” Kanatzidis, who led the research, is the Charles E. and Emma H. Morrison Professor of Chemistry in the Weinberg College of Arts and Sciences. The new solar cell uses a structure called a perovskite but with tin instead of lead as the light-absorbing material. Lead perovskite has achieved 15 percent efficiency, and tin perovskite should be able to match — and possibly surpass — that. Perovskite solar cells are being touted as the “next big thing in photovoltaics” and have reenergized the field. Kanatzidis developed, synthesized and analyzed the material. He then turned to Northwestern collaborator and nanoscientist

The post Environmentally friendly solar cell pushes forward the ‘next big thing in photovoltaics’ has been published on Technology Org.

Similar news or articles:

1. Dye-sensitized solar cells rival conventional cell efficiency
2. Revolutionary solar cells double as lasers
3. Imec simplifies i-PERC solar cell processing by implementing laser doping from ALD-Al2O3

 
#physics 
 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/i_uG_EI2I2o/
See Zazzle gifts tagged with 'science'