scholarly journals Interface engineering and solid-state organization for triindole-based p-type organic thin-film transistors

2018 ◽  
Vol 20 (26) ◽  
pp. 17889-17898 ◽  
Author(s):  
Marta Reig ◽  
Gintautas Bagdziunas ◽  
Arunas Ramanavicius ◽  
Joaquim Puigdollers ◽  
Dolores Velasco
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Interface Engineering ◽  
State Organization ◽  
P Type

Role of the solid-state organization of the semiconductor and of its interface with the dielectric on the OTFT performance.

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.

scholarly journals Double Beneficial Role of Fluorinated Fullerene Dopants on Organic Thin-Film Transistors: Structural Stability and Improved Performance

2020 ◽  
Vol 12 (25) ◽  
pp. 28416-28425 ◽  
Author(s):  
Adara Babuji ◽  
Inés Temiño ◽  
Ana Pérez-Rodríguez ◽  
Olga Solomeshch ◽  
Nir Tessler ◽  
...  
Keyword(s):  
Thin Film ◽  
Structural Stability ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Beneficial Role ◽  
Improved Performance

Effective performance improvement of organic thin film transistors by using tri-layer insulators

2018 ◽  
Vol 83 (2) ◽  
pp. 20201 ◽  
Author(s):  
Yao Ni ◽  
Jianlin Zhou ◽  
Yuanyuan Hao ◽  
Hang Yu ◽  
Yanyun Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Silicon Oxide ◽  
Layer Structure ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Interface Quality ◽  
Organic Semiconductor Materials ◽  
Effective Performance ◽  
P Type

Organic thin film transistors (OTFTs) with silicon oxide (SiO2)/poly(4-vinylphenol) (PVP)/polymethylmethacrylate (PMMA) tri-layer structure (SPP) as dielectric layers have been fabricated. To verify the validity of such tri-layer structure, two different organic semiconductor materials such as p-type pentacene and n-type fluorinated copper phthalo–cyanine (F16CuPc) are both used for fabricating OTFTs. Comparing with the OTFTs even by using PMMA modification, the better interface quality existing between SPP dielectric and organic film leads a higher conductive efficiency for transport carriers in channel. And then the field effect carriers (hole in pentacene OTFTs and electron in F16CuPc OTFTs) mobilities are both increased obviously. Our results show the SPP dielectric structure can be widely used to improve performance of OTFTs.

Fullerene-derivative as interlayer for high performance organic thin-film transistors

2018 ◽  
Vol 6 (22) ◽  
pp. 6052-6057 ◽  
Author(s):  
Jiahui Tan ◽  
Jakob Sorensen ◽  
Huanli Dong ◽  
Wenping Hu
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
High Performance ◽  
Organic Thin Film Transistors ◽  
Fullerene Derivative ◽  
Organic Thin Film ◽  
Interface Engineering ◽  
Engineering Strategy

The present work demonstrates a new interface engineering strategy to improve pentacene transistors performance by using a fullerene-derivative interlayer.

scholarly journals Solid-state organization of n-type carbazole-based semiconductors for organic thin-film transistors

2018 ◽  
Vol 20 (2) ◽  
pp. 1142-1149 ◽  
Author(s):  
Marta Reig ◽  
Joaquim Puigdollers ◽  
Dolores Velasco
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thin Film Transistors ◽  
Alkyl Chain ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Active Layers ◽  
Xrd Studies ◽  
State Organization ◽  
Chain Lengths

n-Type OTFTs were fabricated and characterised from a series of tricyanovinyl-substituted carbazole-based materials with different N-alkyl chain lengths as active layers. XRD studies gave insights into the main intermolecular interactions, molecular packing motifs and the degree of molecular order in thin films that justified the performance of the devices.

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