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Transient and local illumination of an organic photoconductive sensor

Wouter Woestenborghs, Patrick De Visschere UGent, Filip Beunis UGent, arnout vetsuypens and Kristiaan Neyts UGent (2013) Proceedings of SPIE. 8622.
abstract
In this paper we investigate the performance of a transparent photoconductive sensor based on a double layer of organic materials (m-MTDAB / PTCBI) which are deposited on two interdigitated transparent ITO electrodes. The performance of the sensor is demonstrated with electro-optical measurements: the I(V) curves consist of two linear sections meeting at a knee voltage Vt. Linear regression performed on the I(V) curves below Vt show that the conductance is a power law of the luminance incident on the device. We present a model to describe the behaviour of the sensor below Vt. We present measurements of I(t) for a transient illumination of the sensor. Plotting the inverse of the current as a function of time we find that the transient is consistent with the model for voltages below Vt. For voltages above Vt we find that the sensor behaves like a resistor in series with a space charge (SC) region. We present a local illumination experiment that confirms the existence of a SC region between the electrodes of the photoconductive sensor for V<Vt. The space charge region is located near the cathode of the sensor. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
Resistors, TRANSPARENT, Organic materials, Electrodes, Sensors
in
Proceedings of SPIE
volume
8622
issue title
ORGANIC PHOTONIC MATERIALS AND DEVICES XV
article number
862216
publisher
SPIE
conference name
Conference on Organic Photonic Materials and Devices XV
conference location
San Francisco, CA, USA
conference start
2013-02-02
conference end
2013-02-07
Web of Science type
Proceedings Paper
Web of Science id
000322823100019
ISSN
0277-786X
ISBN
9780819493910
DOI
10.1117/12.2000502
project
Center for nano- and biophotonics (NB-Photonics)
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3232330
handle
http://hdl.handle.net/1854/LU-3232330
alternative location
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1662105
date created
2013-06-03 09:31:59
date last changed
2016-12-21 15:40:53
@inproceedings{3232330,
  abstract     = {In this paper we investigate the performance of a transparent photoconductive sensor based on a double layer of organic materials (m-MTDAB / PTCBI) which are deposited on two interdigitated transparent ITO electrodes. The performance of the sensor is demonstrated with electro-optical measurements: the I(V) curves consist of two linear sections meeting at a knee voltage Vt. Linear regression performed on the I(V) curves below Vt show that the conductance is a power law of the luminance incident on the device. We present a model to describe the behaviour of the sensor below Vt. We present measurements of I(t) for a transient illumination of the sensor. Plotting the inverse of the current as a function of time we find that the transient is consistent with the model for voltages below Vt. For voltages above Vt we find that the sensor behaves like a resistor in series with a space charge (SC) region. We present a local illumination experiment that confirms the existence of a SC region between the electrodes of the photoconductive sensor for V{\textlangle}Vt. The space charge region is located near the cathode of the sensor. {\textcopyright} (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.},
  articleno    = {862216},
  author       = {Woestenborghs, Wouter and De Visschere, Patrick and Beunis, Filip and vetsuypens, arnout and Neyts, Kristiaan},
  booktitle    = {Proceedings of SPIE},
  isbn         = {9780819493910},
  issn         = {0277-786X},
  keyword      = {Resistors,TRANSPARENT,Organic materials,Electrodes,Sensors},
  language     = {eng},
  location     = {San Francisco, CA, USA},
  publisher    = {SPIE},
  title        = {Transient and local illumination of an organic photoconductive sensor},
  url          = {http://dx.doi.org/10.1117/12.2000502},
  volume       = {8622},
  year         = {2013},
}

Chicago
Woestenborghs, Wouter, Patrick De Visschere, Filip Beunis, arnout vetsuypens, and Kristiaan Neyts. 2013. “Transient and Local Illumination of an Organic Photoconductive Sensor.” In Proceedings of SPIE. Vol. 8622. SPIE.
APA
Woestenborghs, W., De Visschere, P., Beunis, F., vetsuypens, arnout, & Neyts, K. (2013). Transient and local illumination of an organic photoconductive sensor. Proceedings of SPIE (Vol. 8622). Presented at the Conference on Organic Photonic Materials and Devices XV, SPIE.
Vancouver
1.
Woestenborghs W, De Visschere P, Beunis F, vetsuypens arnout, Neyts K. Transient and local illumination of an organic photoconductive sensor. Proceedings of SPIE. SPIE; 2013.
MLA
Woestenborghs, Wouter, Patrick De Visschere, Filip Beunis, et al. “Transient and Local Illumination of an Organic Photoconductive Sensor.” Proceedings of SPIE. Vol. 8622. SPIE, 2013. Print.