IIT Delhi to tap Bhathwari Technologies’ expertise in CVD technique to develop diamond-based deep UV photodetectors  

IIT Delhi to tap Bhathwari Technologies’ expertise in CVD technique to develop diamond-based deep UV photodetectors  The technology is aimed at catapulting production capabilities, thereby having a positive impact on the lab-grown diamond jewellery market in India  

Delhi: The Indian Institute of Technology (IIT) Delhi has announced a significant collaboration with Bhathwari Technologies Pvt. Ltd. (BTPL) of Surat to develop diamond-based deep ultraviolet (UV) photodetectors, marking a pioneering advancement in India. 

Under this partnership, IIT Delhi will leverage BTPL’s expertise in synthesizing diamonds through the Chemical Vapour Deposition (CVD) technique. CVD is a process where a solid material is deposited from a vapour by a chemical reaction occurring on or in the vicinity of a normally heated substrate surface. The resulting solid material is in the form of a thin film, powder or single crystal. These innovative photodetectors are expected to have applications in various fields, including UV imaging, biological detection, secure communications, and military detection. 

The deep UV photodetectors are designed to offer a highly selective photo response in the deep UV region, demonstrating high efficiency at room temperature. BTPL will supply high-quality CVD-grown diamond samples, while IIT Delhi will focus on designing and developing UV photodetectors, led by Professor Rajendra Singh from the Department of Physics. 

Bakul Bhai Limbasiya, Chairman of BTPL, expressed enthusiasm about the collaboration, stating, “We synthesized the first Lab Grown Diamond (LGD) in India in 2001 and have since been dedicated to developing CVD reactors and related technologies for LGDs. This partnership represents a significant step towards the indigenous development of diamond photodetectors, aligning with the ‘Make in India’ and ‘Atmanirbhar Bharat’ initiatives championed by our Prime Minister Shri Narendra Modi.” 

Professor Rajendra Singh shared his excitement about the project, noting, “Diamond is an ultra-wide bandgap semiconductor with remarkable properties that can enhance its applications in electronic and optoelectronic devices. This collaboration will significantly accelerate research and development in the area of diamond materials and their device applications.” 

This groundbreaking initiative positions India at the forefront of advanced photodetector technology, paving the way for future innovations in various high-tech fields. 
 
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