Rajendra R Khanal

Title: Innovations of Rajendra R Khanal in Solar Technology

Introduction

Rajendra R Khanal is an accomplished inventor based in Toledo, OH (US). He has made significant contributions to the field of solar technology, particularly in the development of advanced materials for photovoltaic cells. With a total of 2 patents, his work focuses on enhancing the efficiency and performance of solar energy systems.

Latest Patents

One of his notable patents is titled "Iron pyrite nanocrystal film as a copper-free back contact for polycrystalline CdTe thin film solar cells." This invention reveals the use of nanocrystalline FeS thin films as a back contact for CdTe solar cells. The FeSNC layer is prepared from a solution directly on the CdTe surface using spin-casting and chemical treatment at ambient temperature and pressure, eliminating the need for thermal treatment. Solar cells utilizing this NC FeS back contact achieve efficiencies of approximately 95% to 100% compared to standard Cu/Au back contact devices. Additionally, another configuration involving FeS interposed between Cu and Au results in a 5 to 9 percent efficiency improvement over standard Cu/Au devices.

Another significant patent is for a "Back contact layer for photovoltaic cells." This patent discloses a photovoltaic cell structure that incorporates a back contact layer made of single wall carbon nanotube elements. The SWNT back contact is in electrical communication with an adjacent semiconductor layer, providing a buffer characteristic that prevents elemental metal migration from the back contact into the semiconductor active layers. This innovative design enhances the overall performance and reliability of photovoltaic cells.

Career Highlights

Rajendra R Khanal is affiliated with the University of Toledo, where he continues to advance research in solar technology. His work has garnered attention for its potential to revolutionize the efficiency of solar energy systems.

Collaborations

He has collaborated with notable colleagues, including Michael J Heben and Adam B Phillips, contributing to a dynamic research environment focused on innovative solutions in solar technology.

Conclusion

Rajendra R Khanal's contributions to solar technology through his patents demonstrate his commitment to advancing renewable energy solutions. His innovative approaches have the potential to significantly impact the efficiency of photovoltaic systems, paving the way for a more sustainable future.