Krishnakumar Velappan

Title: Krishnakumar Velappan: Innovator in Thin Film Technology

Introduction

Krishnakumar Velappan is a notable inventor based in Dresden, Germany. He has made significant contributions to the field of thin film technology, holding a total of five patents. His work focuses on enhancing the efficiency and quality of thin film devices, which are crucial in various applications, including solar energy.

Latest Patents

Among his latest patents is a thin film device with additional conductive lines and a method for producing it. The invention aims to provide a new thin film device that includes at least one thin film cell. This cell comprises a first electrode, a photoactive layer, and a second electrode, with the photoactive layer positioned between the two electrodes. Notably, at least one additional conductive line is integrated within the active area of the thin film cell, ensuring electrical interconnection with the first electrode while remaining insulated from the second electrode.

Another significant patent involves a method to deposit a high-quality thin film absorber layer. This method focuses on forming a CdSeTe thin film with a defined selenium content. The process includes providing a base substrate and depositing a partial CdSeTe layer on a portion of the substrate. The deposition is performed multiple times, with controlled temperature conditions to prevent the re-evaporation of cadmium and tellurium from the already deposited layer.

Career Highlights

Krishnakumar has worked with several prominent companies, including CTF Solar GmbH and China Triumph International Engineering Co., Ltd. His experience in these organizations has allowed him to refine his expertise in thin film technologies and contribute to innovative projects.

Collaborations

Throughout his career, Krishnakumar has collaborated with talented individuals such as Shou Peng and Bastian Siepchen. These collaborations have further enriched his work and expanded the impact of his inventions.

Conclusion

Krishnakumar Velappan stands out as a significant figure in the realm of thin film technology. His innovative patents and career achievements reflect his dedication to advancing this critical field. His contributions continue to influence the development of efficient and high-quality thin film devices.