Properties of electrospun CdS and CdSe filled poly(methyl methacrylate) (PMMA) nanofibres

Highly luminescent film functionalized with CdTe quantum dots by layer‐by‐layer assembly

“…36 The thermal stability of (QDs/PDDA) n cellulose mats were improved with increasing the deposited bilayers, possibly because of the free radical absorption by the QDs during the thermal decomposition of cellulose and retarding the mobility of the polymer, similar to other reports about QDs/polymer composite systems. 18,21 The DSC analysis in Figure 8(b) was consistent with the TG results. The cellulose fibrous mat showed a broad exothermic event at about 200 C and a weak exothermic peak at 350 C which was associated with the degradation of the cellulose.…”

“…39,42 Two small peaks appeared at 40 and 47 in (QDs/PDDA) 6 bilayers coated cellulose mat because the deposited amounts of QDs were too small to form agglomerates and the present very small amounts were not easily detected by XRD. 18 However, two distinct peaks appeared at the same degrees when the amounts of bilayers increased to 10. The results agreed with Li's report that the peaks of 220 and 311 crystal faces of cubic phase (zinc-blende) CdTe QDs were at 39 and 46 .…”

Development of quasi‐solid‐state dye‐sensitized solar cell based on an electrospun polyvinylidene fluoride–polyacrylonitrile membrane electrolyte

“…In recent times, quasi‐solid‐state DSSCs utilizing polymer gel electrolytes have received increasing attention due to their non‐flammable character, negligible vapor pressure, good permeability into the mesoporous TiO 2 , and high ionic conductivity . Mostly, popular polymer gel electrolytes, for example polyacrylonitrile (PAN), poly(ethylene glycol) (PEG), poly(methyl methacrylate) (PMMA), poly(MMA‐ co ‐MAA)/PEG, cyanoacrylate, poly(oligoethylene glycol methacrylate), polyvinylideneflouride (PVdF), poly(siloxane‐ co ‐ethyleneoxide), poly(butyl acrylate), poly(vinylidene fluoride‐ co ‐hexafluoropropylene) (PVdF‐HFP), and poly(oligoethylene glycol methacrylate) (POEGM), with different plasticizers have been used in quasi‐solid‐state DSSCs. The PVdF is considered as a good base for electrolyte due to its high dielectric constant ( e = 8.4), good electrochemical stability, affinity towards liquid electrolyte solutions because of electron withdrawing fluorine atoms (–C–F) in the backbone structure and exhibits ionic conductivities in the range of 10 −4 to 10 −3 S cm −1 at room temperature .…”

TOPO-capped silver selenide nanoparticles and their incorporation into polymer nanofibers using electrospinning technique

“…These properties of polymer nanofibers depend on the type of incorporated nanoparticles, their size, shape, their concentration and interaction with polymer matrix. Semiconducting nanoparticles have been material of great interest when it comes to polymer reinforcement due to their exciting properties especially their unusual size-dependent optical properties [6]. Different methods were used for the preparation of semiconducting nanoparticles which are micelle route, sol gel route, chemical precipitation route, colloidal route and metal organic route.…”