Sang Il Park

TL;DR: In this article, a patterned silver microelectrodes by omnidirectional printing of concentrated nanoparticle inks in both uniform and high-aspect ratio motifs with minimum widths of approximately 2 micrometers onto semiconductor, plastic, and glass substrates is demonstrated.

TL;DR: Methods to fabricate and assemble inorganic light-emitting diodes provide a route toward transparent, flexible, or stretchable display devices and for assembling and interconnecting them into unusual display and lighting systems.

TL;DR: Modules that use large-scale arrays of silicon solar microcells created from bulk wafers and integrated in diverse spatial layouts on foreign substrates by transfer printing are described, including high degrees of mechanical flexibility, user-definable transparency and ultrathin-form-factor microconcentrator designs.

TL;DR: In this paper, the authors describe systems that consist of arrays of interconnected, ultrathin inorganic light-emitting diodes and photodetectors configured in mechanically optimized layouts on unusual substrates.

TL;DR: In this article, the authors describe a range of useful physical and mechanical properties including flexibility, shapeability, conformability, and stretchablity of printed optical devices and devices, such as light emitting devices, light collecting systems, light sensing systems and photovoltaic systems.