Biometric writer identification: feature analysis and classification

J Chapran - International Journal of Pattern Recognition and …, 2006 - World Scientific
This paper describes an efficient biometric writer identification system that can be used in a
resource contained embedded environment. Writer identification (personal identification by …

Task-related population characteristics in handwriting analysis

J Chapran, MC Fairhurst, RM Guest, C Ujam - IET Computer Vision, 2008 - IET
An analysis of features extracted from handwriting samples according to writer demographics
and writing task characteristics is presented. The individual demographics studied here …

MAPb(Br1–xClx)3 Hybrid Perovskite Materials for Direct X-ray Detection

…, F Lédée, O Baussens, M Chapran… - ACS Applied …, 2023 - ACS Publications
… MAPb(Br 0.85 Cl 0.15 ) 3 exhibits the best sensitivity with a value of S ≈ 3 μC mGy air –1
cm –2 for RQA5 spectral quality and the lowest dark current density with a value of J dark ≈ 22 …

Multi-channel electroluminescence of CdTe/CdS core-shell quantum dots implemented into a QLED device

…, K Ivaniuk, P Stakhira, Z Hotra, M Chapran, J Ulanski… - Dyes and pigments, 2019 - Elsevier
CdTe/CdS core-shell quantum dots were synthesized and implemented into a light emitting
device resulting in multi-channel electroluminescence with a light-green emission color. The …

High-triplet-level phthalimide based acceptors for exciplexes with multicolor emission

M Chapran, R Lytvyn, C Begel, G Wiosna-Salyga… - Dyes and …, 2019 - Elsevier
… All small molecules and cathode layers were thermally evaporated in Kurt J. Lesker Spectros
II evaporation system under pressure of 10 −6 mbar without breaking the vacuum. The …

An ambipolar BODIPY derivative for a white exciplex OLED and cholesteric liquid crystal laser toward multifunctional devices

M Chapran, E Angioni, NJ Findlay, B Breig… - … Applied Materials & …, 2017 - ACS Publications
A new interface engineering method is demonstrated for the preparation of an efficient white
organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel …

Efficient “Warm-White” OLEDs based on the phosphorescent bis-cyclometalated iridium (III) complex

…, E Stromylo, I Helzhynskyy, M Chapran… - The Journal of …, 2014 - ACS Publications
The starburst carbazole derivative and phosphorescent bis-cyclometalated iridium(III)
complex (IC2) were used for the preparation of multilayered “warm-white” organic light-emitting …

Mixing of phosphorescent and exciplex emission in efficient organic electroluminescent devices

…, E Stromylo, I Helzhynskyy, M Chapran… - … applied materials & …, 2015 - ACS Publications
We fabricated a yellow organic light-emitting diode (OLED) based on the star-shaped donor
compound tri(9-hexylcarbazol-3-yl)amine, which provides formation of the interface …

Electronic structure of exciplexes and the role of local triplet states on efficiency of thermally activated delayed fluorescence

M Chapran, I Sahalianov… - ACS Applied …, 2023 - ACS Publications
In this work, we present an investigation of the electronic states in a series of thermally
activated delayed fluorescence (TADF) exciplexes formed with the popular electron-transport …

Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals

M García-Batlle, J Mayén Guillén, M Chapran… - ACS energy …, 2022 - ACS Publications
… The comparison is made in Figure 1b, which indicates that J is greater than J i by more … , J
i ≪ J), which have to be considered as being mainly dominated by electronic carriers (JJ e )…