Energy level tuning of blue emitting and electron transporting vinylene bis(vinyl quinolinyl)benzene derivatives: synthesis, characterisation, thin film characterisation and performance in OLEDs

2015 ◽  
Vol 3 (26) ◽  
pp. 6652-6667 ◽  
Author(s):  
Poopathy Kathirgamanathan ◽  
Sivagnanasundram Surendrakumar ◽  
Seenivasagam Ravichandran ◽  
Muttulingam Kumaraverl ◽  
Juan Antipan Lara ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Energy Level ◽  
Band Gap ◽  
Organic Semiconductors ◽  
Electron Mobility ◽  
High Thermal Stability ◽  
Benzene Derivatives ◽  
And Performance ◽  
Band Gap Tuning

Band gap tuning by attaching aromatic and heterocyclic substituents on the vinylene bis(vinylquinolinyl)benzene moiety results in multifunctional organic semiconductors with high thermal stability and electron mobility.

scholarly journals Investigation of reactively sputtered TaN thin-film resistors for microwave photonic applications

2021 ◽  
pp. 93-98
Author(s):  
Evgenii Erofeev ◽  
Egor Polyntsev ◽  
Sergei Ishutkin
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Magnetron Sputtering ◽  
Electrical Resistance ◽  
High Thermal Stability ◽  
Tantalum Nitride ◽  
Reactive Magnetron ◽  
Microwave Photonic ◽  
Thin Film Resistors ◽  
Thermal Stability Of

Electrophysical characteristics and their thermal stability of thin-film resistors based on tantalum nitride (TaN) obtained by reactive magnetron sputtering were investigated. The optimal modes of the magnetron sputtering process are determined, ensuring the Ta2N phase film composition with the value of the specific electrical resistance of 250 μm cm and high thermal stability of the parameters. On the basis of the investigations carried out, thin-film matching resistors were manufactured for use as part of an electro-optical InP-based MZ modulator

New tailored organic semiconductors thin films for optoelectronic applications

2021 ◽  
Author(s):  
Dinesh Pathak ◽  
Sanjay Kumar ◽  
Sonali Andotra ◽  
Jibin Thomas ◽  
Navneet Kaur ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cell ◽  
Optical Absorption ◽  
Band Gap ◽  
Organic Semiconductors ◽  
Low Cost ◽  
Organic Thin Film ◽  
Vis Spectroscopy ◽  
Carbon Based

In this study, we have investigated new tailored organic semiconductors materials for the optoelectronic application, such as organic solar cells. The carbon-based organic semiconductor material has promising advantages in organic thin-film form. Moreover, due to its low cost, organic thin-films are suitable and cheaper than inorganic thin-film. The band gap of organic semiconductors materials can be tuned and mostly lies between 2.0eV to 4eV and the optical absorption edge of organic semiconductors typically lies in between 1.7eV to 3eV. They can be easily tailored by modifying the carbon chain and legends and looks promising for engineering the band gap to harness solar spectrum. In this work, with new tailored organic semiconductors the solution route is explored which is low cost processing method. (Anthracen-9-yl) methylene naphthalene-1-amine, 4-(anthracen-9-ylmethyleneamino)-1,5dimethyl-2-phenyl-1H-pyrazol-3-one and N-(anthracen-9-ylmethyl)-3,4-dimethoxyaniline thin-films are processed by spin coating method with changing concentration such as 0.05 wt% and 0.08 wt%. Thin films of Organic semiconductors were prepared on glass substrate and annealed at 55°C. The structural and optical behaviour of (Anthracen-9-yl) methylene naphthalene-1-amine, 4-(anthracen-9-ylmethyleneamino)-1,5dimethyl-2-phenyl-1H-pyrazol-3-one and N-(anthracen-9-ylmethyl)-3,4-dimethoxyaniline organic semiconductors thin films is studied by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and UV-Visible Spectroscopy technique. The XRD data of synthesized sample suggests the Nano crystallinity of the Organic layers. The SEM micrographs shows the dense packing when we increase the wt% 0.05 to 0.08. Analysis of the optical absorption measurements found that the engineered band gap of synthesized thin films are 2.18eV, 2.35eV, 2.36eV, 2.52eV and 2.65eV which suggest suitability for applications of Optoelectronic devices such as solar cell. Such light weight, eco-friendly and disposable new carbon based materials seems to have potential to replace other traditional hazardous heavy materials for future eco-friendly flat fast electronics. Keywords: Thin-film, solar cell, tailored organic semiconductors, XRD, SEM, UV-Vis spectroscopy.

Molecular orientation and thermal stability of thin-film organic semiconductors

2021 ◽  
Vol 88 ◽  
pp. 106014
Author(s):  
Han-Nan Yang ◽  
Shou-Jie He ◽  
Tao Zhang ◽  
Jia-Xiu Man ◽  
Yongbiao Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Organic Semiconductors ◽  
Molecular Orientation ◽  
Thermal Stability Of

scholarly journals High-performance La-doped BCZT thin film capacitors on LaNiO3/Pt composite bottom electrodes with ultra-high efficiency and high thermal stability

2019 ◽  
Vol 45 (9) ◽  
pp. 11749-11755 ◽  
Author(s):  
Shangkai He ◽  
Biaolin Peng ◽  
Glenn J.T. Leighton ◽  
Christopher Shaw ◽  
Ningzhang Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
High Performance ◽  
High Efficiency ◽  
High Thermal Stability ◽  
Thin Film Capacitors ◽  
La Doped

scholarly journals Cyclohexyl-Substituted Anthracene Derivatives for High Thermal Stability Organic Semiconductors

2019 ◽  
Vol 7 ◽  
Author(s):  
Yicai Dong ◽  
Yuan Guo ◽  
Hantang Zhang ◽  
Yanjun Shi ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Organic Semiconductors ◽  
High Thermal Stability ◽  
Anthracene Derivatives

Design guideline of a thin film SOI power MOSFET for high thermal stability

2012 ◽  
Vol 52 (9-10) ◽  
pp. 2380-2384 ◽  
Author(s):  
Yuka Morisawa ◽  
Takuya Kodama ◽  
Satoshi Matsumoto
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
High Thermal Stability ◽  
Design Guideline ◽  
Power Mosfet

scholarly journals Structural Geometry Variation of 1,4-Naphthalene-Based Co-Polymers to Tune the Device Performance of PVK-Host-Based OLEDs

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2914
Author(s):  
Qian Liu ◽  
Dhanashree Moghe ◽  
Gopa Sardar ◽  
Sergei Manzhos ◽  
Steven E. Bottle ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Organic Semiconductors ◽  
High Thermal Stability ◽  
Organic Light Emitting Diodes ◽  
Device Performance ◽  
Blue Color ◽  
Structural Geometry ◽  
Light Emitting ◽  
Organic Light ◽  
Coupling Polymerization

Blue-color-emitting organic semiconductors are of significance for organic light-emitting diodes (OLEDs). In this study, through Suzuki coupling polymerization, three 1,4-naphthalene-based copolymers—namely, PNP(1,4)-PT, PNP(1,4)-TF, and PNP(1,4)-ANT—were designed and synthesized. The variation of comonomers, phenothiazine (PT), triphenylamine substituted fluorene (TF), and anthanthrene (ANT), effectively tuned the emitting color and device performance of poly(9-vinyl carbazole) (PVK)-based OLEDs. Especially, the polymer PNP(1,4)-TF, bearing perpendicular aryl side groups, showed a most twisted structural geometry, which enabled an ultra-high thermal stability and a best performance with blue emitting in PVK-host-based OLEDs. Overall, in this work, we demonstrate a promising blue-color-emitting polymer through structural geometry manipulation.

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