Indian Scientists developed energy efficient photodetector for security applications
The scientists from the Jawaharlal Nehru Centre for Advances Scientific Research (JNCASR) has fabricated energy efficient photodetector for security applications.
- The autonomous institute has fabricated energy efficient, economical and wafer scale photodetector.
- The photodetector was designed using gold-silicon interface for security applications.
- It will also help to detect weak scattered light.
What are the challenges faced?
- Today, photodetectors are used in wide range of applications
- They are employed in wide range of applications from control of automatic lighting in supermarkets to detect radiations from outer galaxy.
- The only issue is their cost of fabrication.
- This makes them unaffordable for day to day applications.
- The newly invented photodetector helps to address this issue.
About the invention
- The scientists in the new invention have fabricated gold-silicon interface that shows high sensitivity towards light.
- The interface was brought between the elements with the help of galvanic deposition.
- Water based solutions were used to deposit the ions.
- This has made the detector affordable and also more efficient.
What are the benefits with this?
- The detector has a rapid response time of 40 micro seconds
- It covers broad range between UV and IR
- As the device works in self powered mode, no external power source is required
- This makes the device highly energy efficient