scholarly journals Flexible inorganic–organic thin film phosphors by ALD/MLD

2015 ◽  
Vol 3 (47) ◽  
pp. 12316-12321 ◽  
Author(s):  
Z. Giedraityte ◽  
P. Sundberg ◽  
M. Karppinen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Molecular Layer ◽  
Organic Thin Films ◽  
Luminescent Properties ◽  
Flexible Substrates ◽  
Layer By Layer ◽  
Organic Thin Film

Hybrid europium-based inorganic–organic thin films with excellent luminescent properties can be fabricated on flexible substrates in an atomic/molecular layer-by-layer manner using the ALD/MLD technique.

High Resolution Organic Thin Film Mapping for Process Control

1992 ◽  
Vol 247 ◽  
Author(s):  
David Denenberg ◽  
Austin R. Blew
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
High Resolution ◽  
Process Control ◽  
Eddy Current ◽  
Maximum Yield ◽  
Organic Thin Films ◽  
Organic Thin Film ◽  
Contour Maps ◽  
Surface Profiles

ABSTRACT; This paper describes the use of advanced circuitry nondestructive eddy current techniques to map organic Thin Films. Surface profiles, contour maps and diameter scans are obtained from the process wafers tested providing the necessary information to control the processes for maximum yield.

scholarly journals Pair distribution functions of amorphous organic thin films from synchrotron X-ray scattering in transmission mode

IUCrJ ◽  
2017 ◽  
Vol 4 (5) ◽  
pp. 555-559 ◽  
Author(s):  
Chenyang Shi ◽  
Rattavut Teerakapibal ◽  
Lian Yu ◽  
Geoff G. Z. Zhang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Amorphous State ◽  
Organic Thin Films ◽  
High Energy ◽  
Transmission Mode ◽  
Organic Thin Film ◽  
Total Scattering ◽  
X Ray ◽  
Wide Range

Using high-brilliance high-energy synchrotron X-ray radiation, for the first time the total scattering of a thin organic glass film deposited on a strongly scattering inorganic substrate has been measured in transmission mode. The organic thin film was composed of the weakly scattering pharmaceutical substance indomethacin in the amorphous state. The film was 130 µm thick atop a borosilicate glass substrate of equal thickness. The atomic pair distribution function derived from the thin-film measurement is in excellent agreement with that from bulk measurements. This ability to measure the total scattering of amorphous organic thin films in transmission will enable accuratein situstructural studies for a wide range of materials.

Spiral growth mode in DMDPC organic thin film transistors by physical vapor deposition

RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 50770-50775 ◽  
Author(s):  
Tianjun Liu ◽  
Jiawei Wang ◽  
Liang Wang ◽  
Jing Wang ◽  
Jingbo Lan ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Vapor Deposition ◽  
Thin Film Transistors ◽  
Physical Vapor Deposition ◽  
Organic Thin Films ◽  
Organic Thin Film Transistors ◽  
Spiral Growth ◽  
Organic Thin Film ◽  
Screw Dislocations

We report the observation of a screw-dislocation-driven spiral growth of DMDPC organic thin films. The existence of screw dislocations was clearly confirmed by the observations of outcropped stepsand spiral fringes.

scholarly journals Inorganic–organic superlattice thin films for thermoelectrics

2015 ◽  
Vol 3 (40) ◽  
pp. 10349-10361 ◽  
Author(s):  
J.-P. Niemelä ◽  
A. J. Karttunen ◽  
M. Karppinen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thermal Conductivity ◽  
Thermoelectric Materials ◽  
Electrical Transport ◽  
Molecular Layer ◽  
Organic Thin Film ◽  
Electrical Transport Properties ◽  
Molecular Layer Deposition ◽  
Layer Deposition

Nanoscale layer-engineering using the combined atomic/molecular layer deposition (ALD/MLD) technique for the fabrication of oxide–organic thin-film superlattices is an attractive way to tailor the performance of thermoelectric materials as it potentially allows us to suppress thermal conductivity without significantly hindering the electrical transport properties.

scholarly journals Composition-tuned metal–organic thin-film structures based on photoswitchable azobenzene by ALD/MLD

2020 ◽  
Vol 49 (32) ◽  
pp. 11310-11316
Author(s):  
Aida Khayyami ◽  
Anish Philip ◽  
Jenna Multia ◽  
Maarit Karppinen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Molecular Layer ◽  
Organic Thin Film ◽  
Molecular Layer Deposition ◽  
Layer Deposition ◽  
Metal Organic

We demonstrate the fabrication of in-situ crystalline thin films of various azobenzene (AZO) based photoresponsive metal–organic structures using the atomic/molecular layer deposition (ALD/MLD) technique.

scholarly journals Atomic/molecular layer deposition of Ni-terephthalate thin films

2021 ◽  
Author(s):  
Anish Philip ◽  
Sami Vasala ◽  
Pieter Glatzel ◽  
Maarit Karppinen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Molecular Layer ◽  
Organic Thin Film ◽  
Molecular Layer Deposition ◽  
Organic Components ◽  
Layer Deposition ◽  
Metal Organic

Atomic/molecular layer deposition (ALD/MLD) is currently strongly emerging as an intriguing route for novel metal-organic thin-film materials. This approach already covers a variety of metal and organic components, and potential...

scholarly journals ALD/MLD fabrication of luminescent Eu-organic hybrid thin films using different aromatic carboxylic acid components with N and O donors

RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 103412-103417 ◽  
Author(s):  
Z. Giedraityte ◽  
L.-S. Johansson ◽  
M. Karppinen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Carboxylic Acid ◽  
Molecular Layer ◽  
Organic Thin Film ◽  
Aromatic Carboxylic Acid ◽  
Molecular Layer Deposition ◽  
Organic Hybrid ◽  
Layer Deposition ◽  
Hybrid Thin Films

Atomic/molecular layer deposition (ALD/MLD) processes based on Eu(thd)3 and three different aromatic organic acids with O and N donors as precursors are systematically investigated for the growth of Eu-based inorganic–organic thin-film phosphors.

Vacuum Deposited Erbium-Doped NIR Luminescent Organic Thin Films For 1.5 μm Optical Amplification Applications

2011 ◽  
Vol 1342 ◽  
Author(s):  
Laurent Divay ◽  
Christophe Galindo ◽  
Evelyne Chastaing ◽  
Renato Bisaro ◽  
Frédéric Wyczisk ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Cross Sections ◽  
Organic Thin Films ◽  
Organic Polymer ◽  
Organic Thin Film ◽  
Vacuum Sublimation ◽  
Optical Amplification ◽  
Erbium Doped ◽  
Doped Glasses

AbstractInorganic erbium-doped glasses are widely used in telecommunications due to the sharp intra-atomic 4I13/2 → 4I15/2 transition in the 4f orbital of erbium resulting in an emission at ∼ 1.5 μm, which is the low loss window of silica optical fibres. The limited erbium concentration of about 1020 ions.cm−3 in inorganic erbium-doped glasses and the low absorption coefficient of the Er3+ ions, imply that relatively long lengths of fibre are required. The organic erbium complexes present higher absorption cross sections due to the photosensitization of erbium by organic conjugated ligands and broader emission bands than those of the free Er3+ ion. Such properties open the possibility to develop compact, low power and broadband infrared emitting devices. We present the study of a highly doped organic thin film obtained from organic erbium complexes deposited by a vacuum sublimation technique. This deposition method allows the realization of an erbium-doped thin film without the help of an organic polymer matrix, which is a potential source of vibrationnal luminescence quenching. The ligands used in the present study are fluorinated in order to limit the vibrationnal quenching of the ligand itself, and to increase the volatility of the complexes. In this paper, we report the synthesis, the sublimation process and the characterization of the thin films.

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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