Crystallinity and grain boundary control of TIPS-pentacene in organic thin-film transistors for the ultra-high sensitive detection of NO2

2019 ◽  
Vol 7 (33) ◽  
pp. 10196-10202 ◽  
Author(s):  
Bingyao Shao ◽  
Yiming Liu ◽  
Xinming Zhuang ◽  
Sihui Hou ◽  
Shijiao Han ◽  
...  
Keyword(s):  
Thin Film ◽  
Grain Boundary ◽  
Boundary Control ◽  
Thin Film Transistors ◽  
Limit Of Detection ◽  
Organic Thin Film Transistors ◽  
Sensitive Detection ◽  
Organic Thin Film ◽  
Solvent Engineering

Ultra-sensitive OTFT based NO2 sensors with a limit of detection of 1.93 ppb were realized by controlling and regulating the microstructures of TIPS-pentacene semiconducting films via solvent engineering.

Polymer mask-weakening grain-boundary effect: towards high-performance organic thin-film transistors with mobility closing to 20 cm2 V−1 s−1

2020 ◽  
Vol 4 (10) ◽  
pp. 2990-2994
Author(s):  
Deyang Ji ◽  
Jie Li ◽  
Xiaosong Chen ◽  
Lin Li ◽  
Liqiang Li ◽  
...  
Keyword(s):  
Thin Film ◽  
High Resolution ◽  
Grain Boundary ◽  
Thin Film Transistors ◽  
High Performance ◽  
Boundary Effect ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Top Contact ◽  
Grain Boundary Effect

Polystyrene-based masks are fabricated to produce top-contact high-resolution (5 μm) electrodes. With this mask, the mobility of DPA-based thin-film transistors could reach 19.22 cm2 V−1 s−1, which is a new breakthrough for DPA thin-film transistors.

scholarly journals Intra-Grain and Oligo-Grain Top-Contact Organic Thin film Transistors

2003 ◽  
Vol 771 ◽  
Author(s):  
Stijn Verlaak ◽  
Stijn De Jonge ◽  
Stijn Noppe ◽  
Dimitri Janssen ◽  
Soeren Steudel ◽  
...  
Keyword(s):  
Thin Film ◽  
Grain Boundary ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Experimental Results ◽  
Organic Thin Film ◽  
Small Channel ◽  
Top Contact ◽  
Output Characteristics ◽  
Channel Lengths

AbstractWe describe and demonstrate a micromachined shadowmask that allows the realization of intra-grain and oligo-grain top-contact organic thin film transistors (OTFTs). First experimental results of OTFT's show that for small channel lengths, grain boundary barriers indeed appear to dominate the output characteristics of OTFTs.

Effective performance improvement of organic thin film transistors with multi-layer modifications

2020 ◽  
Vol 91 (3) ◽  
pp. 30201
Author(s):  
Hang Yu ◽  
Jianlin Zhou ◽  
Yuanyuan Hao ◽  
Yao Ni
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Performance Enhancement ◽  
Organic Thin Film Transistors ◽  
Electrical Performance ◽  
Hole Injection ◽  
Organic Thin Film ◽  
Effective Performance ◽  
Significant Performance ◽  
P Type

Organic thin film transistors (OTFTs) based on dioctylbenzothienobenzothiophene (C8BTBT) and copper (Cu) electrodes were fabricated. For improving the electrical performance of the original devices, the different modifications were attempted to insert in three different positions including semiconductor/electrode interface, semiconductor bulk inside and semiconductor/insulator interface. In detail, 4,4′,4′′-tris[3-methylpheny(phenyl)amino] triphenylamine (m-MTDATA) was applied between C8BTBTand Cu electrodes as hole injection layer (HIL). Moreover, the fluorinated copper phthalo-cyanine (F16CuPc) was inserted in C8BTBT/SiO2 interface to form F16CuPc/C8BTBT heterojunction or C8BTBT bulk to form C8BTBT/F16CuPc/C8BTBT sandwich configuration. Our experiment shows that, the sandwich structured OTFTs have a significant performance enhancement when appropriate thickness modification is chosen, comparing with original C8BTBT devices. Then, even the low work function metal Cu was applied, a normal p-type operate-mode C8BTBT-OTFT with mobility as high as 2.56 cm2/Vs has been fabricated.

A Proposal of High Performance Organic Thin Film Transistors

2010 ◽  
Vol 130 (2) ◽  
pp. 161-166
Author(s):  
Yoshinori Ishikawa ◽  
Yasuo Wada ◽  
Toru Toyabe ◽  
Ken Tsutsui
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
High Performance ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film

Photo-Induced Threshold and Onset Voltage Shifts in Organic Thin-Film Transistors

2013 ◽  
Vol E96.C (11) ◽  
pp. 1360-1366 ◽  
Author(s):  
Ichiro FUJIEDA ◽  
Tse Nga NG ◽  
Tomoya HOSHINO ◽  
Tomonori HANASAKI
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Onset Voltage

PREPARATION AND CHARACTERIZATION OF POLYVINYL ALCOHOL THIN FILMS FOR ORGANIC THIN FILM TRANSISTORS AND BIOMEDICAL APPLICATIONS

2018 ◽  
Vol 5 (2) ◽  
pp. 16-18
Author(s):  
Chandar Shekar B ◽  
Ranjit Kumar R ◽  
Dinesh K.P.B ◽  
Sulana Sundar C ◽  
Sunnitha S ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thin Film Transistors ◽  
Gravimetric Method ◽  
Dip Coating ◽  
Organic Thin Film Transistors ◽  
Poly Vinyl Alcohol ◽  
Organic Thin Film ◽  
Glass Substrates ◽  
Coating Method

Thin films of poly vinyl alcohol (PVA) were prepared on pre-cleaned glass substrates by Dip Coating Method. FTIR spectrum was used to identify the functional groups present in the prepared films. The vibrational peaks observed at 1260 cm-1 and 851 cm-1 are assigned to C–C stretching and CH rocking of PVA.The characteristic band appearing at 1432 cm-1 is assigned to C–H bend of CH2 of PVA. The thickness of the prepared thin films were measured by using an electronic thickness measuring instrument (Tesatronic-TTD20) and cross checked by gravimetric method. XRD spectra indicated the amorphous nature of the films.Surface morphology of the coated films was studied by scanning electron microscope (SEM). The surface revealed no pits and pin holes on the surface. The observed surface morphology indicated that these films could be used as dielectric layer in organic thin film transistors and as drug delivery system for wound healing.

Cyanophenoxy-Substituted Silicon Phthalocyanines for Low Threshold Voltage n-Type Organic Thin-Film Transistors

2021 ◽  
Author(s):  
Benjamin King ◽  
Andrew J. Daszczynski ◽  
Nicole A. Rice ◽  
Alexander J. Peltekoff ◽  
Nathan J. Yutronkie ◽  
...  
Keyword(s):  
Thin Film ◽  
Threshold Voltage ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Silicon Phthalocyanines ◽  
Low Threshold
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