In US, scientists, including one of Indian-origin researchers have developed a new technology that can boost the efficiency and lower the cost of solar cells.
Researchers at Stanford University created silicon 'nano-pillars' on solar cells to hide the reflective metal contact and funnel light directly to the semiconductor. Their findings could lead to a new paradigm in the design and fabrication of solar cells.
According to the lead author Vijay Narasimhan, who conducted the work as a graduate student at Stanford University, "Using nanotechnology, we have developed a novel way to make the upper metal contact nearly invisible to incoming light". He further informed that they have developed a novel way to make the upper metal contact nearly visible to incoming light by using nanotechnology and by adding this new technology, it will improve the efficiency and lower the cost of solar cell. "Our new technique could significantly improve the efficiency and thereby lower the cost of solar cells", said Narasimhan.
“Besides gold, the nano-pillar architecture will also work with contacts made of silver, platinum, nickel and other metals”, said graduate student and co-author Ruby Lai.
The study is published in the journal ACS Nano.