This roadmap summarizes the state-of-the-art in UV emitter technology, focusing on the (Al,In,Ga)N material system. It highlights key challenges such as improving light output power, operation voltage, and long-term stability, especially for UVB and UVC emitters, and discusses potential solutions and future research directions.

Some authors are affiliated with companies or institutions involved in UV emitter research and development. These include UV Craftory Co., Ltd., North Carolina State University, Ferdinand-Braun-Institut, Kyoto University, Technische Universität Berlin, University of Strathclyde, The Ohio State University, Ulm University, University of Kassel, National Taiwan University, University of Sheffield, Crystal IS Inc., Asahi Kasei Corporation, University of Bath, Adroit Materials, Inc., Marubun Corporation, and PARC, a Xerox Company. While these affiliations don't necessarily indicate a conflict of interest, they represent a potential bias that readers should be aware of.

This roadmap provides a valuable overview of the current state and challenges in UV emitter technology. However, its lack of original research, broad scope, and descriptive nature limit its impact as a scientific paper. The potential conflicts of interest due to authors' affiliations should also be considered. Thus it merits an average rating.