Page 188 - Organic Electronics in Sensors and Biotechnology

CHAPTER 5

Progress and

Challenges in Organic

Light-Emitting Diode-

Based Chemical and

Biological Sensors

Ruth Shinar
Microelectronics Research Center and
Department of Electrical and Computer Engineering
Iowa State University, Ames
Yuankun Cai and Joseph Shinar
Ames Laboratory-USDOE and
Department of Physics and Astronomy
Iowa State University, Ames

5.1 Introduction
Remarkable advances in the development of chemical and biological
sensors have occurred over the past 30 years. 1–8 One of the major cur-
rent efforts focuses on development of low-cost field-deployable
multianalyte sensors and sensor networks. Several organic-electronics-
based thrusts within this effort, which are under different stages of
development, are described in several chapters of this volume. The
paradigm described in this chapter is that of photoluminescence (PL)-
based sensors with small-molecular organic light-emitting diodes
(SMOLEDs) as the PL excitation source. As detailed below, such an
OLED-based sensing platform is very promising.
165