Cheng G.J. – TechConnect Briefs

Direct Pulsed Laser Crystallization of Photoactive thin films at Room Temperature

Cheng G.J., Zhang Yi, Purdue University, US

Photoactive semiconductor materials used for thin film solar cells have been considered one of the most promising technologies with demonstrated high efficiency in both lab scale cells. World-wide research and development (R&D) have been carried [...]

Direct Pulsed Laser Crystallization of Photoactive thin films at Room Temperature

Cheng G.J., Zhang Yi, Purdue University, US

Photoactive semiconductor materials used for thin film solar cells have been considered one of the most promising technologies with demonstrated high efficiency in both lab scale cells. World-wide research and development (R&D) have been carried [...]

Direct Manufacturing of Functional Structures on 3D microscale surfaces by Laser Dynamic Forming

Huang G., Cheng G.J., Purdue University, US

This paper demonstrates a scalable and fast-shaping top-down integration technique, Laser Dynamic Forming (LDF), capable of manufacturing 3D functional structures conformal to micro-to-mesoscale curvilinear features on various substrates by the laser-induced shockwave. The functional devices [...]

A nanoscale machine shop for NWs

Cheng G.J., Li Ji, Purdue University, US

One-dimensional nanomaterials have attracted a great deal of research interest in the past few decades due to their unique mechanical, electrical and optical properties. Changing the shape of nanowires (NWs) is both challenging and crucial [...]