scholarly journals Photoresponse Dimensionality of Organic Field-Effect Transistor

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7465
Author(s):  
Tomas Vincze ◽  
Michal Micjan ◽  
Juraj Nevrela ◽  
Martin Donoval ◽  
Martin Weis
Keyword(s):  
Organic Semiconductors ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Copper Phthalocyanine ◽  
Field Effect Transistors ◽  
Low Cost ◽  
Flexible Substrates ◽  
Organic Field Effect Transistors ◽  
Effect Transistor ◽  
Absorption Characteristics

Organic field-effect transistors have been envisioned for advanced photodetectors because the organic semiconductors provide unique absorption characteristics, low-cost fabrication, or compatibility with flexible substrates. However, the response time of organic phototransistors still does not reach the required application level. Here, we report the photoresponse of copper phthalocyanine phototransistor in a steady state and under pulsed illumination. The detailed analysis based on the random walk among a field of traps was used to evaluate the dimensionality of electron transport in a device.

scholarly journals 2,2'-(Arylenedivinylene)bis-8-hydroxyquinolines exhibiting aromatic π-π stacking interactions as solution-processable p-type organic semiconductors for high-performance organic field effect transistors

2021 ◽  
Author(s):  
Suman Yadav ◽  
Shivani Sharma ◽  
Satinder K Sharma ◽  
Chullikkattil P. Pradeep
Keyword(s):  
Organic Semiconductors ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Organic Thin Film ◽  
Effect Transistor ◽  
Solution Processable ◽  
P Type

Solution-processable organic semiconductors capable of functioning at low operating voltages (~5 V) are in demand for organic field-effect transistor (OFET) applications. Exploration of new classes of compounds as organic thin-film...

On Razors Edge: Influence of the Source Insulator Edge on the Charge Transport of Vertical Organic Field Effect Transistors

MRS Advances ◽  
2017 ◽  
Vol 2 (23) ◽  
pp. 1249-1257 ◽  
Author(s):  
F. Michael Sawatzki ◽  
Alrun A. Hauke ◽  
Duy Hai Doan ◽  
Peter Formanek ◽  
Daniel Kasemann ◽  
...  
Keyword(s):  
Charge Transport ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Electrical Power ◽  
Strong Impact ◽  
Organic Field Effect Transistor ◽  
Effect Transistor

ABSTRACTTo benefit from the many advantages of organic semiconductors like flexibility, transparency, and small thickness, electronic devices should be entirely made from organic materials. This means, additionally to organic LEDs, organic solar cells, and organic sensors, we need organic transistors to amplify, process, and control signals and electrical power. The standard lateral organic field effect transistor (OFET) does not offer the necessary performance for many of these applications. One promising candidate for solving this problem is the vertical organic field effect transistor (VOFET). In addition to the altered structure of the electrodes, the VOFET has one additional part compared to the OFET – the source-insulator. However, the influence of the used material, the size, and geometry of this insulator on the behavior of the transistor has not yet been examined. We investigate key-parameters of the VOFET with different source insulator materials and geometries. We also present transmission electron microscopy (TEM) images of the edge area. Additionally, we investigate the charge transport in such devices using drift-diffusion simulations and the concept of a vertical organic light emitting transistor (VOLET). The VOLET is a VOFET with an embedded OLED. It allows the tracking of the local current density by measuring the light intensity distribution.We show that the insulator material and thickness only have a small influence on the performance, while there is a strong impact by the insulator geometry – mainly the overlap of the insulator into the channel. By tuning this overlap, on/off-ratios of 9x105 without contact doping are possible.

scholarly journals Diacenopentalene dicarboximides as new n-type organic semiconductors for field-effect transistors

2016 ◽  
Vol 4 (37) ◽  
pp. 8758-8764 ◽  
Author(s):  
Gaole Dai ◽  
Jingjing Chang ◽  
Linzhi Jing ◽  
Chunyan Chi
Keyword(s):  
Organic Semiconductors ◽  
Electron Mobility ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Processing Technique ◽  
Solution Processing ◽  
Effect Transistor

Two diacenopentalene dicarboximides were synthesized, and their devices made with solution-processing technique exhibited n-type field-effect transistor behavior with electron mobility of up to 0.06 cm2 V−1 s−1.

scholarly journals Self-Assemble Monolayer Dependent Field Effect Transistor’s Performance Based On Tetracene Single-Crystal

2013 ◽  
Vol 25 (2) ◽  
pp. 194-199 ◽  
Author(s):  
Md. Minarul Islam
Keyword(s):  
Single Crystal ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Chemical Society ◽  
Gate Insulator ◽  
Organic Field Effect Transistors ◽  
Crystal Field Effect ◽  
Effect Transistor ◽  
Self Assemble Monolayer

Organic field effect transistors with an active layer based on the tetracene single-crystal were fabricated. It was found that organosilane self-assemble monolayer (SAM) modified device with tetracene single-crystals gave higher mobility and on/off ratio rather than untreated device. SAM modified tetracene single-crystal transistors with parylene gate insulator showed the highest mobility of 0.66 cm2 V-1 s-1 and high on/off ratio of ~104. This finding demonstrates that SAM treatment decrease the charge leakage between source and drain which help to decrease the off current with greater extent and increase the on current slightly of the tetracene single-crystal field-effect transistors. Journal of Bangladesh Chemical Society, Vol. 25(2), 194-199, 2012 DOI: http://dx.doi.org/10.3329/jbcs.v25i2.15086

scholarly journals Tuning ambipolarity in a polymer field effect transistor using graphene electrodes

2020 ◽  
Vol 8 (24) ◽  
pp. 8120-8124 ◽  
Author(s):  
Kaushik Bairagi ◽  
Sara Catalano ◽  
Francesco Calavalle ◽  
Elisabetta Zuccatti ◽  
Roger Llopis ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Organic Materials ◽  
Field Effect Transistors ◽  
Low Cost ◽  
The Other ◽  
Other Hand ◽  
Effect Transistor ◽  
The One

Polymer field-effect transistors with 2D graphene electrodes are devices that merge the best of two worlds: on the one hand, the low-cost and processability of organic materials and, on the other hand, the chemical robustness, extreme thinness and flexibility of graphene.

Control of Electronic Properties of Organic Semiconductor

2011 ◽  
Vol 287-290 ◽  
pp. 725-728
Author(s):  
Ke Jie Tan ◽  
Ke Ke Zhang ◽  
Shu Qin Liang ◽  
Wai Hoong Kan ◽  
Subodh G Mhaisalkar ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Electronic Properties ◽  
Single Crystals ◽  
Organic Semiconductors ◽  
Field Effect ◽  
Copper Phthalocyanine ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Crystal Field Effect ◽  
High Efficient

The electronic properties of organic field effect transistors limit the efficiency of integrated circuits build on basis of printed organic semiconductors. In order to control the mobility of high efficient semiconductors, like rubrene, tetracene, tetracyanoquinodimethane (TCNQ), copper phthalocyanine and many others, single-crystal field-effect transistors have been prepared on surfaces of single crystals and characteristics have been measured. The highest mobility has been measured on rubrene single crystals. The mobility of as-grown crystals measured by air-gap field effect transistor is in the range of 10 cm2/Vs but falls below 1 cm2/Vs during reduction. It was observed that the measured mobility depends on the dielectric used for field effect transistors.

Direct printing of soluble acene crystal stripes by a programmed dip-coating process for organic field-effect transistor applications

2018 ◽  
Vol 6 (4) ◽  
pp. 799-807 ◽  
Author(s):  
Sooji Nam ◽  
Yong Jin Jeong ◽  
Jaemin Jung ◽  
Se Hyun Kim ◽  
Jinho Ahn ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Dip Coating ◽  
Coating Process ◽  
Organic Field Effect Transistors ◽  
Organic Field Effect Transistor ◽  
Direct Printing ◽  
Effect Transistor

High-crystalline TIPS-PEN crystal stripes are directly printed with controllable inter-stripe spacingviaprogrammed dip-coating for application in organic field-effect transistors.

scholarly journals Stencil mask defined doctor blade printing of organic single crystal array for high-performance organic field-effect transistors

2021 ◽  
Author(s):  
Yue Xi ◽  
Tao Wang ◽  
Qi Mu ◽  
Congcong Huang ◽  
Shuming Duan ◽  
...  
Keyword(s):  
Field Effect ◽  
High Performance ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Organic P ◽  
Organic Field Effect Transistors ◽  
Stencil Mask ◽  
Organic Single Crystal ◽  
Effect Transistor ◽  
Amorphous Si

Organic field-effect transistor (OFET) is one of the promising candidates for next generation electronics due to its solution processability and good performance superior to amorphous Si devices. Patterning the organic...

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