Next Article in Journal
Reference Architecture for Multi-Layer Software Defined Optical Data Center Networks
Next Article in Special Issue
Organic Bioelectronic Tools for Biomedical Applications
Previous Article in Journal
Intermodulation Linearity in High-k/Metal Gate 28 nm RF CMOS Transistors
Open AccessArticle

Organic Optical Sensor Based on Monolithic Integration of Organic Electronic Devices

Department of Physics, Institute of Advanced Materials, and Institute of Research and Continuing Education (Shenzhen), Hong Kong Baptist University, Kowloon Tong, NT, Hong Kong, China
*
Author to whom correspondence should be addressed.
Academic Editors: Ruth Shinar and Emil J.W. List-Kratochvil
Electronics 2015, 4(3), 623-632; https://doi.org/10.3390/electronics4030623
Received: 17 July 2015 / Revised: 5 September 2015 / Accepted: 10 September 2015 / Published: 17 September 2015
(This article belongs to the Special Issue Recent Advances in Organic Bioelectronics and Sensors)
A novel organic optical sensor that integrates a front organic light-emitting diode (OLED) and an organic photodiode (OPD) is demonstrated. The stripe-shaped cathode is used in the OLED components to create light signals, while the space between the stripe-shaped cathodes serves as the detection window for integrated OPD units. A MoO3 (5 nm)/Ag (15 nm) bi-layer inter-electrode is interposed between the vertically stacked OLED and OPD units, serving simultaneously as the cathode for the front OLED and an anode for the upper OPD units in the sensor. In the integrated sensor, the emission of the OLED units is confined by the area of the opaque stripe-shaped cathodes, optimized to maximize the reflected light passing through the window space for detection by the OPD components. This can ensure high OLED emission output, increasing the signal/noise ratio. The design and fabrication flexibility of an integrated OLED/OPD device also has low cost benefits, and is light weight and ultra-thin, making it possible for application in wearable units, finger print identification, image sensors, smart light sources, and compact information systems. View Full-Text
Keywords: organic sensor; organic light emitting diode; organic photodiode; integrated organic electronics organic sensor; organic light emitting diode; organic photodiode; integrated organic electronics
Show Figures

Graphical abstract

MDPI and ACS Style

Tam, H.L.; Choi, W.H.; Zhu, F. Organic Optical Sensor Based on Monolithic Integration of Organic Electronic Devices. Electronics 2015, 4, 623-632.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Search more from Scilit
 
Search
Back to TopTop