The study of the photo-response characteristics of organic photosensors integrated with pentacene based thin film transistors

Shin Woo Jeong; Jin Wook Jeong; Seongpil Chang; Tae Yeon Oh; Seung Youl Kang; Kyoung Ik Cho; Byeong Kwon Ju

doi:10.1016/j.snb.2011.02.013

The study of the photo-response characteristics of organic photosensors integrated with pentacene based thin film transistors

Shin Woo Jeong
, Jin Wook Jeong
, Seongpil Chang
, Tae Yeon Oh
, Seung Youl Kang
, Kyoung Ik Cho
, Byeong Kwon Ju^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We have investigated the photo-response characteristics of organic photosensors (OPS) integrated with pentacene based thin film transistors (TFTs). The fabricated device configuration is PEN/ITO/PEDOT:PSS/(poly(3- hexylethiophene)/phenyl-C61-butryic acid methyl ester) (P3HT/PCBM)/Al and PDMS/Au/(poly-4-vinyphenol) (PVP)/pentacene/Au. In order to study the effect of the applied voltage to the pentacene-TFT on the OPS, each device is connected in series. The response current is tuned dependant on the gate-source voltage and the anode-source voltage. The change of the photo induced ON current in the integrated device is measured under light illuminations ranging from 50 mW/cm² to 500 mW/cm²; the corresponding photo-response (ΔI/I₀) of the devices varied from 0.16 to 1.9. We found that the photo-response characteristic is high at the low anode-source voltage and high gate-source voltage.

Original language	English
Pages (from-to)	657-661
Number of pages	5
Journal	Sensors and Actuators, B: Chemical
Volume	156
Issue number	2
DOIs	https://doi.org/10.1016/j.snb.2011.02.013
Publication status	Published - 2011 Aug

Bibliographical note

Funding Information:
This work was supported by the IT R&D Program (Grant No. 2008-F-024-02, Development of Mobile Flexible (Input/Output Platform) of MKE in Korea, Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2009-0083126) and the Industrial-Educational Cooperation Program between Korea University and Samsung Electronics.

Keywords

Flexible electronics
Organic photo sensor
Organic thin film transistor
P3HT/PCBM
Photo-response

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2011.02.013

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title = "The study of the photo-response characteristics of organic photosensors integrated with pentacene based thin film transistors",

abstract = "We have investigated the photo-response characteristics of organic photosensors (OPS) integrated with pentacene based thin film transistors (TFTs). The fabricated device configuration is PEN/ITO/PEDOT:PSS/(poly(3- hexylethiophene)/phenyl-C61-butryic acid methyl ester) (P3HT/PCBM)/Al and PDMS/Au/(poly-4-vinyphenol) (PVP)/pentacene/Au. In order to study the effect of the applied voltage to the pentacene-TFT on the OPS, each device is connected in series. The response current is tuned dependant on the gate-source voltage and the anode-source voltage. The change of the photo induced ON current in the integrated device is measured under light illuminations ranging from 50 mW/cm2 to 500 mW/cm2; the corresponding photo-response (ΔI/I0) of the devices varied from 0.16 to 1.9. We found that the photo-response characteristic is high at the low anode-source voltage and high gate-source voltage.",

keywords = "Flexible electronics, Organic photo sensor, Organic thin film transistor, P3HT/PCBM, Photo-response",

author = "Jeong, \{Shin Woo\} and Jeong, \{Jin Wook\} and Seongpil Chang and Oh, \{Tae Yeon\} and Kang, \{Seung Youl\} and Cho, \{Kyoung Ik\} and Ju, \{Byeong Kwon\}",

note = "Funding Information: This work was supported by the IT R\&D Program (Grant No. 2008-F-024-02, Development of Mobile Flexible (Input/Output Platform) of MKE in Korea, Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2009-0083126) and the Industrial-Educational Cooperation Program between Korea University and Samsung Electronics. ",

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AU - Jeong, Shin Woo

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AU - Chang, Seongpil

AU - Oh, Tae Yeon

AU - Kang, Seung Youl

AU - Cho, Kyoung Ik

AU - Ju, Byeong Kwon

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N2 - We have investigated the photo-response characteristics of organic photosensors (OPS) integrated with pentacene based thin film transistors (TFTs). The fabricated device configuration is PEN/ITO/PEDOT:PSS/(poly(3- hexylethiophene)/phenyl-C61-butryic acid methyl ester) (P3HT/PCBM)/Al and PDMS/Au/(poly-4-vinyphenol) (PVP)/pentacene/Au. In order to study the effect of the applied voltage to the pentacene-TFT on the OPS, each device is connected in series. The response current is tuned dependant on the gate-source voltage and the anode-source voltage. The change of the photo induced ON current in the integrated device is measured under light illuminations ranging from 50 mW/cm2 to 500 mW/cm2; the corresponding photo-response (ΔI/I0) of the devices varied from 0.16 to 1.9. We found that the photo-response characteristic is high at the low anode-source voltage and high gate-source voltage.

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The study of the photo-response characteristics of organic photosensors integrated with pentacene based thin film transistors

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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