Correlating Carrier Type with Frontier Molecular Orbital Energy Levels in Organic Thin Film Transistors of Functionalized Acene Derivatives

2009 ◽  
Vol 131 (14) ◽  
pp. 5264-5273 ◽  
Author(s):  
Ming L. Tang ◽  
Anna D. Reichardt ◽  
Peng Wei ◽  
Zhenan Bao
Keyword(s):  
Thin Film ◽  
Molecular Orbital ◽  
Thin Film Transistors ◽  
Energy Levels ◽  
Organic Thin Film Transistors ◽  
Frontier Molecular Orbital ◽  
Orbital Energy ◽  
Organic Thin Film ◽  
Molecular Orbital Energy

Spiro[fluorene-9,9′-xanthene]-based universal hosts for understanding structure–property relationships in RGB and white PhOLEDs

RSC Advances ◽  
2015 ◽  
Vol 5 (38) ◽  
pp. 29828-29836 ◽  
Author(s):  
Yan Qian ◽  
Yeren Ni ◽  
Shouzhen Yue ◽  
Wenwen Li ◽  
Shufen Chen ◽  
...  
Keyword(s):  
Energy Level ◽  
Molecular Orbital ◽  
Energy Levels ◽  
Frontier Molecular Orbital ◽  
Orbital Energy ◽  
Structure Property ◽  
Triplet Energy ◽  
Structure Property Relationships ◽  
Molecular Orbital Energy

Independent and accumulative modification of frontier molecular orbital energy levels without affecting the triplet energy level can be realized.

o-Carborane functionalized pentacenes: synthesis, molecular packing and ambipolar organic thin-film transistors

2015 ◽  
Vol 51 (60) ◽  
pp. 12004-12007 ◽  
Author(s):  
Jixi Guo ◽  
Danqing Liu ◽  
Jiahui Zhang ◽  
Jiji Zhang ◽  
Qian Miao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Energy Levels ◽  
Molecular Packing ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Homo Energy ◽  
Type Semiconductor ◽  
Pentacene Derivatives ◽  
P Type

Replacement of triisopropylsilyl groups with o-carboranyl units in pentacene derivatives can lower both LUMO and HOMO energy levels, converting a typical p-type semiconductor into an ambipolar one.

Predictably tuning the frontier molecular orbital energy levels of panchromatic low band gap BODIPY-based conjugated polymers

2012 ◽  
Vol 3 (10) ◽  
pp. 3093 ◽  
Author(s):  
Bhooshan C. Popere ◽  
Andrea M. Della Pelle ◽  
Ambata Poe ◽  
Ganapathy Balaji ◽  
S. Thayumanavan
Keyword(s):  
Conjugated Polymers ◽  
Band Gap ◽  
Molecular Orbital ◽  
Energy Levels ◽  
Frontier Molecular Orbital ◽  
Orbital Energy ◽  
Low Band Gap ◽  
Molecular Orbital Energy

scholarly journals Light-Controlled Reversible Modulation of Frontier Molecular Orbital Energy Levels in Trifluoromethylated Diarylethenes

2017 ◽  
Vol 23 (15) ◽  
pp. 3743-3754 ◽  
Author(s):  
Martin Herder ◽  
Fabian Eisenreich ◽  
Aurelio Bonasera ◽  
Anna Grafl ◽  
Lutz Grubert ◽  
...  
Keyword(s):  
Molecular Orbital ◽  
Energy Levels ◽  
Frontier Molecular Orbital ◽  
Orbital Energy ◽  
Molecular Orbital Energy

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.

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