This inventor holds 1 USPTO granted patent. Top assignees: Group IV Semiconductor, Inc., Mcmaster University. Active years: 2010.
Company Filing History:
1 out of 13 
1 out of 271 Years Active: 2010
Title: Jacek Wojcik: Innovator in Solid-State Light Emitting Devices
Introduction
Jacek Wojcik is a notable inventor based in Stoney Creek, Canada. He has made significant contributions to the field of solid-state light emitters, particularly through his innovative patent that enhances the performance of light-emitting devices.
Latest Patents
Wojcik holds a patent for "Carbon passivation in solid-state light emitters." This invention involves a solid-state light-emitting device that comprises one or more active layers containing semiconductor nano-particles embedded in a host matrix, such as silicon nano-particles in silicon dioxide or silicon nitride. The incorporation of carbon into the active layers leads to substantial improvements in performance, including shortened decay time and enhanced emission spectra, as well as increased reliability and lifetime. The emission wavelengths from the nano-particles can be engineered to correspond to the quantization energy of the semiconductor nano-particles, allowing for coverage of the entire visible spectrum. The design includes alternating active and buffer material layers situated between AC or DC electrodes, which generate an electric field. The buffer layers consist of wide bandgap semiconductor or dielectric materials, designed to ensure that electrons passing through them gain sufficient energy to excite the nano-particles in the adjacent active layer, enabling efficient light emission at desired wavelengths.
Career Highlights
Throughout his career, Jacek Wojcik has worked with prominent organizations, including Group IV Semiconductor, Inc. and McMaster University. His work has focused on advancing technologies in the field of solid-state lighting, contributing to both academic and industrial advancements.
Collaborations
Wojcik has collaborated with notable colleagues such as George Chik and Thomas Macelwee, further enhancing the impact of his work in the field of solid-state lighting.
Conclusion
Jacek Wojcik's innovative contributions to solid-state light emitters demonstrate his commitment to advancing technology in this field. His patent on carbon passivation showcases the potential for improved performance and efficiency in light-emitting devices.