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

School of Electrical Engineering

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

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

AU - Jeong, Jin Wook

AU - Chang, Seongpil

AU - Oh, Tae Yeon

AU - Kang, Seung Youl

AU - Cho, Kyoung Ik

AU - Ju, Byeong Kwon

N1 - 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.

PY - 2011/8

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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.

AB - 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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KW - Organic thin film transistor

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

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