Ultraviolet light effect on electrical properties of a flexible organic thin film transistor

Lucas, Bruno; Amrani, Aumeur El; Chakaroun, Mohamad; Ratier, Bernard; Antony, Rémi; Moliton, André

doi:10.1016/j.tsf.2009.02.065

Cited by 33 publications

(31 citation statements)

References 17 publications

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“…As far as we know, the best performance was obtained for 4(HPBT)‐benzene films120 with a maximum responsivity of 4300 A W −1 for a low optical power of 7 µW cm −2 (at zero gate bias). Another important parameter is the ratio of on and off current switching; various efforts129–136 show that photosensitivity can vary from 10 3 up to 10 7 in the case of an OTFT using a 6,13‐bis(penylphenylethynyl) pentacene film122 and working in the off state. Moreover, the highest switching speed of a transistor with n‐type copper hexadecafluorophthalocyanine channel was measured at 10 ms 123.…”

Section: Organic Phototransistorsmentioning

confidence: 99%

Organic transistors and phototransistors based on small molecules

Lucas

Trigaud

Videlot‐Ackermann

2011

Polymer International

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International audienceSignificant advances have been made recently in the area of organic electronics and optoelectronics based on small molecules as a result of the synthesis of new soluble and air-stable molecules. First reported 20 years ago, organic transistors quickly became a focus of intense research and development in academic and industrial laboratories. The great progress achieved thus far offers an opportunity for the production of new small electro-active molecules and the implementation of low-cost device fabrication technologies. This review focuses on recently synthesized p- or n-type organic semiconductors, particularly those suitable for fabrication of solution-processed and/or air-stable field effect transistors with an emphasis on low-cost wet processes. The numerous recent efforts realized in optoelectronics, particularly on phototransistors based on small molecules, offer various opportunities in applications for such organic compounds. Copyright © 2011 Society of Chemical Industr

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Section: Organic Phototransistorsmentioning

confidence: 99%

Organic transistors and phototransistors based on small molecules

Lucas

Trigaud

Videlot‐Ackermann

2011

Polymer International

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“…For instance organic TFTs are sensitive to environment factors such as moisture, oxygen and other contaminants [7][8][9][10] and to light or UV exposure [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effects of thermal and electrical stress on DH4T-based organic thin-film-transistors with PMMA gate dielectrics

Wrachien

Lago

Rizzo

et al. 2015

Microelectronics Reliability

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“…As shown, the repeatable change in the drain current is well correspondent to the cycle of the light-on and light-off. Utilizing the response behavior, the rising time ( rise ) and falling time ( fall ) were measured to be about 0.2 ms, indicating that the device has a fast response property in comparison with that in the recent pentacene phototransistor [10]. Table 1 presents the summary of device performance of the present pentacene photoOTFT and relative works reported so far in terms of operating wavelength (), channel area,  rise ,  fall , maximum P, and maximum R. The R is current device approaches the commercial value and can be comparable to that in other pentacene based-OTFTs.…”

Section: Resultsmentioning

confidence: 98%

Photoelectrical characteristics of UV organic thin-film transistor detectors

Dao

2017

MaP

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Abstract:In this paper, a pentacene photo organic thin-film transistor (photoOTFT) was fabricated and characterized. The gate dielectric acted as a sensing layer thanks to it strongly absorbs UV light. Electrical behaviors of photoOTFT were measured under 365 nm UV illumination from the gate electrode side. The current in transistor channel was significantly enhanced by photoelectrons at interface of buffer/gate dielectric. Photosensitivity increased with the light intensity but decreased with the applied gate voltage. Meanwhile the photoresponsivity decreased with the light intensity and increased with the applied gate voltage. The transistor responses well with the pulse of light with many test cycles of light-on and light-off. The best photosensitivity, photoresponsivity, rising time and falling time parameters of the device were found to be about 10 4 , 0.12 A/W, and 0.2 s, respectively. The obtained photoelectrical results suggest that the photoOTFT can be a good candidate for practical uses in low-cost UV optoelectronics.

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Ultraviolet light effect on electrical properties of a flexible organic thin film transistor

Cited by 33 publications

References 17 publications

Organic transistors and phototransistors based on small molecules

Organic transistors and phototransistors based on small molecules

Effects of thermal and electrical stress on DH4T-based organic thin-film-transistors with PMMA gate dielectrics

Photoelectrical characteristics of UV organic thin-film transistor detectors

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