Esin Eren

T.C. Süleyman Demirel Üniversitesi | SDU · Department of Chemistry

Electrospun fibers of 7-methyl-4-phenyl-8-(4’-methoxy)phenylazopyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid ethyl ester (PCA-4) and 7-methyl-4-phenyl-8-(2’-methoxy)phenylazopyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid ethyl ester (PCA-2) were produced using electrospinning technique. Poly(methylmethacrylate) (PMMA) was used as support elect...

In the emerging field of perovskite solar cells, rational hole selective layer development is considered a double‐engine of this progress. To tap into the full potential and accelerate the commercialization path, Machine Learning (ML) is being tasked for perovskite screening. However, sincere efforts have not led to the design of hole selective lay...

The aim of this study is to fabricate streptomycin sulfate (STM)-loaded bis-chalcone/poly(methyl methacrylate) (PMMA)/poly(ethylene oxide) (PEO) based fiber mats for drug delivery and antibacterial applications. This study presents the synergetic effect of a bis-chalcone derivatives ((2E,6E)‐2,6–bis[(thiophen‐2–yl)methylene]cyclohexanone (BTC) or (...

A facile and non-enzymatic electrochemical sensor is developed by the simple electrodeposition of Prussian Blue (PB) on conductive indium tin oxide coated polyethylene terephthalate (PET) substrate. The conductive flexible thin film based on PB were prepared with electrochemical deposition from acidic solution containing a mixture ferric and ferric...

Perovskites as a semiconductor are of profound interest and arguably, the investigation on the distinctive perovskite composition is paramount to fabricate efficient devices and solar cells. We probed the role of anion and cations and their impact on optoelectronic and photovoltaic properties. We report a machine learning approach to predict the ba...

A library of metal oxide‐conjugated polymer composites was prepared, encompassing of WO3‐polyaniline (PANI), WO3‐poly(N‐methylaniline) (PMANI), WO3‐poly(2‐fluoroaniline) (PFANI), WO3‐polythiophene (PTh), WO3‐polyfuran (PFu) and WO3‐poly(3,4‐ethylenedioxythiophene) (PEDOT) which were used as hole selective layers for perovskite solar cells (PSCs) de...

This work introduces improved performances of self-propelled tubular micromotors based on radio frequency (RF)–rotating plasma-prepared graphene oxide-poly(aniline) (GO-PANI), graphene oxide/poly(ethylaniline) (GO-PEANI), and graphene oxide/poly(fluoroaniline) (GO-PFANI) composites as outer layer and platinum (Pt) as the catalytic inner layer. Scan...

This study shows that the model fitting based on machine learning (ML) from experimental data can successfully predict the electrochromic characteristics of single- and dual-type flexible electrochromic devices (ECDs) by using tungsten trioxide (WO3) and WO3/vanadium pentoxide (V2O5), respectively. Seven different regression methods were used for e...

We showed that nickel Prussian blue analogue (NiPBA) films were electrochemically deposited onto a conducting transparent indium tin oxide coated with polyethylene terephthalate electrodes. The flexible NiPBA films were characterized by means of scanning electron microscopy–energy dispersive X-ray spectroscopy (SEM–EDS), X-ray photoelectronspectros...

In the present study, the electrosynthesis and the electrochemical characterization of azo dyes doped poly(3,4-ethylenedioxythiophene (PEDOT) were described. PEDOT film was electrochemically deposited onto indium doped tin oxide (ITO) coated/glass electrode, following azo dyes adsorption. The electropolymerized-PEDOT films on ITO glass were doped w...

We managed to provide one-step facile electrochromic device (ECD) preparation to incorporate two cathodic coloring components into lithium ion (Li+)-doped UV-curable electrolyte. The hybrid-based flexible ECDs were fabricated by using tungsten trioxide (WO3) and poly(3,4-ethylenedioxythiophene) (PEDOT) as electrochromic components without the need...

Vanadium pentoxide (V2O5) electrochromic material was modified by furan plasma polymerization method and electrochromic properties of the new V2O5/Polyfuran (PFu) composite material were examined in three different electrolytes (lithium perchlorate (LiClO4), lithium trifluoromethanesulfonate (LiTRIF), sodium perchlorate (NaClO4), which influence si...

Development of chitosan (Ch)-based green solid polymer electrolyte was attained with addition of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) using solvent casting method for electrochromic device. In the electrochromic device configuration, poly(3,4-ethylenedioxythiophene) (PEDOT), poly(3-methylthiophene) (PMeT) were used as...

In this study, nonthermal atmospheric pressure plasma (NTAPP) method was performed for the sterilization of natural rose water which has a great potential as drug and food additive. NTAPP is applied to rose water containing mesophilic aerobic bacteria, mold and yeast. Experiments were carried out at a voltage of 500 V, a rotating speed of 500 rpm a...

In this study, solid polymer electrolyte (SPE) based on chitosan (Ch) was prepared with addition of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), lithium trifluro methane sulfonate (LiTRIF), propylene carbonate (PC) by solvent casting technique. The chitosan-based polymer electrolyte was characterized using electrochemical imp...

Tungsten trioxide‐poly(3,4‐ethylenedioxythiophene) (WO3‐PEDOT) and tungsten trioxide‐polyfuran (WO3‐PFu) were prepared by rf rotating plasma polymerization. Electrochromic hybrid thin films were fabricated onto flexible polyethylene terephthalate (PET)/ indium tin oxide (ITO) film using electron beam evaporation method. In order to deeply character...

A series of electrochromic hybrid materials were synthesized with in-situ polymerization of aniline, 2-fluoroaniline and N-methylaniline onto tungsten trioxide (WO3) powders using a rotating capacitively coupled radio frequency (rf) plasma process. The materials were characterized by means of scanning electron microscopy-energy dispersive X-ray spe...

Purpose The purpose of this paper was to investigate the effects of hydrochloric acid (HCl), hydrazine, methyl methacrylate, styrene and hexamethyldisiloxane by radio-frequency (rf) plasma graftings on surface properties of wool and denim fabrics. Design/methodology/approach During plasma treatments, processing time was varied under optimized plas...

Tungsten oxide (WO3) thin films were deposited onto flexible substrates using radio frequency magnetron sputtering for high electrochromic performance purposes. The effects of both non-aqueous electrolytes (lithium perchlorate (LiClO4), lithium trifluoromethanesulfonate (LiTRIF)) and the electrochromic thickness layers on the electrochromic propert...

Vanadium oxide/poly (3,4- ethylenedioxythiophene)(V2O5-PEDOT) hybrid materials were prepared in a rotating quartz plasma reactor via capacitively coupled radio frequency (RF 13.56 MHz) plasma. Thin films of V2O5-PEDOT hybrid and V2O5 were obtained by electron beam evaporation technique onto flexible PET substrate for electrochromic devices (ECDs) a...

Conductive textiles with exceptional electrical properties have been prepared by coating the conjugated polymer, poly(3,4-ethylenedioxyphiophene)-polystyrenesulfonate(PEDOT-PSS), on polyethylene terephthalate (PET) nonwoven fabrics. Phase segregation from covalent bond formation to surface silica particles generates PEDOT-PSS coated textiles that h...

Electrochromic textile was obtained by magnetron sputtering process on flexible electrospun conductive polyethylene terephthalate (PET) fiber mesh. Vanadium oxide (V2O5) was magnetron sputtered onto conductive PET/PEDOT-PSS fiber substrate under 100 W RF and room temperature conditions. V2O5 coated conducting fabrics were characterized by means of...

Two ferrocenyl-substituted N-acetyl-2-pyrazolines, N-acetyl-3-(2-furyl)-5-ferrocenyl-2-pyrazoline (Fc-1) and N-acetyl-3-(2-thienyl)-5-ferrocenyl-2-pyrazoline (Fc-2) electrospun fibers, were produced in the presence of plasma-modified chitosan (PMCh)/poly(ethylene terephthalate) (PET) supporting polymers with an electrospinning method. The morpholog...

Using a natural dye (anthocyanin), extracted from a wasted rose residue and characterized by FTIR and UV-visible spectroscopy, a dyesensitized solar cell (DSC) was fabricated and the current-voltage (I-V) characteristics of the solar cell were studied. The best photovoltaic parameters like short-circuit photocurrent (Isc), open-circuit voltage (Voc...

Polyaniline-wool (PAN-WF), poly(3,4-ethylenedioxythiophene)-wool (PEDOT-WF), polypyrrole-wool (PPy-WF) fabrics were successfully prepared via atmospheric pressure plasma process. Scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), Fourier Transform Infrared Spectroscopy (FTIR) and four-probe resistance measurements were use...

Unlike conventional fiber spinning techniques (wet spinning, dry spinning, melt spinning, gel spinning), electrospinning has been recognized as simple effective and an efficient technique for the fabrication of polymer nanofibers and nanofiber non-wowen mats 1,2 . Moreover, this technique can provide possibility to control over the resultant morpho...

Many great investigations and new techniques focused on the study of textile to improve textile surface properties such as wetting, antistatic, electrical conduction, penetration, and so on 1,2 . The static charge is a critical factor and an important limitation for many applications such as garments in direct contact with human skin 3,4 . Both low...

A series of plasma modified chitosan/N-acetyl-2-pyrazoline derivative fibers (PMCh/NAP) were obtained by using an electrospinning method. The result compounds were synthesized from chalcones which obtained by Claisen-Schmidt condensation of ferrocenecarboxaldehyde with hetaryl methyl ketones 1 . The synthesized chalcone derivatives were then treate...

Polythiophene/chitosan (PT/Ch) composites and PT homopolymers were chemically synthesized in the presence of anthraquinone-2-sulfonic acid sodium monohydrate, ACS anionic surfactant. Conductivity, FTIR, SEM, TGA, and XRD measurements were used to study the properties of the composites. The effect of the ratio of the surfactant to the Ch onto struct...

Polyfuran (PFu) films were electrochemically deposited onto gold electro-quartz crystal microbalance (EQCM) electrodes using acetonitrile (ACN)/LiClO4 solvent-electrolyte in presence of dodecylbenzenesulfonic acid (anionic, DBSA) and polyethylene glycol sorbitan monolaurate (non-ionic, Tween 20) surfactants. The effect of surfactants on structural...

Poly(2‐thiophene‐3‐yl‐malonic acid) (P3TMA) was synthesized electrochemically using tetrabutylammonium perchlorate (TBAClO4) as electrolyte into acetonitrile (ACN) for glucose biosensor application. The properties of P3TMA were investigated using FTIR, SEM, and electrochemical measurements. The glucose oxidase enzyme (GOD) was chemically immobilize...

In this study, soluble, n-dopable, florescent, electrochromic polypyrrole derivative was synthesized through both chemical and electrochemical polymerization of 2-[6-(1H-pyrrol-1-yl)hexyl]-1H-benzo[de]isoquinoline-1,3(2H)-dione (PyNI). The polymer synthesized through chemical polymerization had PL emission maxima at 471 and 543 nm and exhibited two...

Poly(3,4-ethylenedioxythiophene)/titanium dioxide (PEDOT/TiO2) nanocomposites and poly(3,4-ethylenedioxythiophene) (PEDOT) homopolymers were synthesized chemically in the presence of anionic (sodium dodecylsulfate, SDS) and cationic (tetradecyltrimethylammoniumbromide, TTAB) surfactants. The effect of surfactant on structural and morphological prop...

Microwave-assisted synthesis, photophysical and electrochemical properties of thermal-stable naphthalene benzimidazoles and naphthalimides are studied in this paper. Microwave-assisted synthesis of naphthalene benzimidazoles provide higher yields than the conventional thermal synthesis. Comparative photophysical properties of naphthalene benzimidaz...

We report the characterization of 1,8-naphthalene benzimidazole comprising carboxyl group. We have fabricated dye-sensitized nanocrystalline TiO{2} solar cell (DSSC) based on naphthalene benzimidazole dye. The device structure is FTO/nc-TiO{2}/Dye/I-/ I{3}-/Pt/ FTO. We calculated the EHOMO and ELUMO levels of this new dye by using cyclic voltammetr...