The conductivity of PEDOT:PSS films was significantly enhanced from 0.3 S cm−1 to 3065 through a treatment with dilute sulfuric acids. sheet resistance 39 Ω sq−1 and transparency around 80% at 550 nm are obtained. These comparable ITO can replace as the transparent electrode optoelectronic devices. Detailed facts importance specialist readers published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please...

The conductivity of poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films was significantly enhanced by preferential solvations the hydrophobic PEDOT and hydrophilic PSS chains with cosolvents. When a PEDOT:PSS film prepared from aqueous solution treated water or common organic solvent like ethanol, iso-propyl alcohol (IPA), acetonitrile (ACN), acetone, tetrahydrofuran (THF), its did not change remarkably. But when cosolvent one these solvents. enhancement affected...

Perovskite solar cells (PSCs) have been attracting considerable attention because of their low fabrication cost and impressive energy conversion efficiency. Most PSCs are built on transparent conductive oxides (TCOs) such as fluorine-doped tin oxide (FTO) or indium (ITO), which costly rigid. Therefore, it is significant to explore alternative materials the electrode PSCs. In this study, highly poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PSS) films were investigated both rigid...

A transparent electrode is an indispensable component of optoelectronic devices, and there as been a search for substitutes indium tin oxide (ITO) the electrode. Poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PSS) conducting polymer that very promising next generation materials if it can obtain conductivity high ITO. Here, we report treatment ofPSS with organic solutions to significantly enhance its conductivity. Common solvents like dimethylformamide γ-butyrolactone common salts...

Significant conductivity enhancement was observed on transparent and conductive poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films after a treatment with organic inorganic acids, including acetic acid, propionic butyric oxalic sulfurous hydrochloric acid. The could be enhanced from 0.2 to over 200 S cm−1, that is, by factor of more than 1000. dependent the structure acids experimental conditions during treatment, such as acid concentration temperature. optimal...

This article reports a novel method to significantly enhance the conductivity of conducting poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films through treatment with aqueous solutions various salts, such as copper(II) chloride. Conductivity enhancement by factor about 700 was observed. Many salts were investigated, and depended on softness parameter cations concentration in solution. A salt like chloride or indium chloride, whose cation has positive parameter, could...

This paper reports the significant conductivity enhancement of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films through a treatment with aqueous solutions zwitterions for first time. The was dependent on structure and experimental conditions during treatment, such as concentration temperature. Conductivity from 0.2 to 92.4 S cm−1 observed PEDOT:PSS after zwitterion treatment. chemical physical characterizations indicate lowering energy barrier charge hopping across...

Conducting polymers have promising thermoelectric application because they many advantages including abundant elements, mechanical flexibility, and nontoxicity. The properties of conducting strongly depend on their chemical structure microstructure. Here, we report a novel facile method to significantly enhance the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PSS) films through treatment with organic solutions inorganic salts. N,N-Dimethylformamide (DMF) common salt like zinc...

The deposition of a perovskite layer from its precursor solution can saliently enhance the conductivity PEDOT:PSS.

Two efficient blue-light-emitting materials with stable diarylfluorene and hole-transporting pyrene groups, 9-alkoxyphenyl-9-pyrenylfluorene substituted pyrenes (EHOP1 EHOP2), have been synthesized by Suzuki coupling reaction fully characterized. They extreme thermal stability in nitrogen onset decomposition temperature over 430 °C. are amorphous Tg of 103 191 °C for EHOP1 EHOP2, respectively. show bright blue emission the solid state. Due to non-conjugated groups at C9 fluorene moieties,...

A wideband high-gain circularly polarized (CP) substrate integrated cavity (SIC) antenna array is presented for millimeter-wave applications. The proposed element simply composed of a slot-coupled high-order-mode resonant square SIC and pair obliquely placed strip-shaped parasitic patches on the top surface SIC. are used to adjust aperture electromagnetic field distribution phase two orthogonal modes TM211 TM121 in achieve CP radiation meanwhile introduce an additional cavity-backed...

A series of π-conjugated chelating polymers with charged iridium (Ir) complex units based on 1,10-phenanthroline in the backbones were synthesized by Suzuki polycondensation, and homogeneous polymeric phosphorescent materials obtained. 3,8-Dibromo-1,10-phenanthroline served as an N∧N ligand to form a Ir monomer 1-(9,9-dioctylfluorene-2-yl)isoquinoline (Fiq) cyclometalated ligands. Chemical photophysical characterization confirmed that was incorporated into one repeat units. Chelating showed...

Organic light-emitting devices with the structure of indium-tin-oxide (ITO)/4, 4', 4''-tris(N-carbazolyl)-triphenylamine (TCTA, different thicknesses)/2-pyrenyl-9-phenyl-9-pyrenylfluorene (2P9PPF) (30 nm)/bathocuproine (BCP) (40 nm)/Mg : Ag (250 nm) have been investigated. The effect TCTA layer on performance blue-emitting has studied. It is demonstrated that inserted 8 nm thick neighbouring anode device leads to efficiency and luminance increasing ten times, reaching 3.8 cd A−1 at 9 V 17...

One big challenge in transparent conducting oxides (TCOs) is to achieve high conductivity and mobility at a low processing temperature. Although optimized has been achieved indium zinc oxide (IZO) without doping, it still interesting find whether doping can improve of IZO further. In this paper, we report temperature achievement through yttrium (Y) doping. We found that with different Y levels, room fabricated amorphous (a-IZO) samples be controlled exhibit either metallic or semiconductor...