Organic LEDs stack up

Organic LEDs: DNA benefits

The nucleic acid bases that form DNA can serve as a useful hole-transport (electron blocking) layer in organic light emitting diodes (OLEDs), according to scientists in the USA. Eliot Gomez and co-workers report that because adenine and thymine can be thermally evaporated, they can be easily incorporated into the fabrication of OLEDs made by vacuum deposition and offer efficient hole-transport ...

Citation network analysis of organic LEDs

Article history: Received 27 February 2009 Received in revised form 25 March 2009 Accepted 12 April 2009 The field of organic light-emitting diodes (OLEDs) is an emergent research domain because of both scientific interest in chemistry and condensed matter physics and industrial importance as flat panel displays. In this paper, we analyzed a citation network of OLED papers and used a topologica...

Hybrid PCB Stack-up

How Does Safety Stack Up ?

SH&E PROFESSIONALS have a vested interest in knowing more about top-level management—most of whom determine what resources are designated for safety within organizations. By knowing more about these managers’ perceptions of safety, an SH&E professional may be better equipped to negotiate for valued resources. For example, suppose you know that top-level managers within your industry think that ...

Arrays of microscopic organic LEDs for high-resolution optogenetics

Optogenetics is a paradigm-changing new method to study and manipulate the behavior of cells with light. Following major advances of the used genetic constructs over the last decade, the light sources required for optogenetic control are now receiving increased attention. We report a novel optogenetic illumination platform based on high-density arrays of microscopic organic light-emitting diode...