نتایج جستجو برای: dssc
تعداد نتایج: 749 فیلتر نتایج به سال:
Analysis of transforming growth factor beta1 gene polymorphisms in patients with systemic sclerosis.
OBJECTIVES To determine the distribution of transforming growth factor beta1 (TGFbeta1) genotypes at codon 10 (+869 polymorphism) and codon 25 (+915 polymorphism) in patients with scleroderma (SSc). Differences between diffuse and limited SSc (dSSc and lSSc) were also investigated. METHODS Patients with lSSc (n=89) and dSSc (n=63) were compared with 147 controls. DNA was isolated from periphe...
A new series of metal-free organic chromophores (TPA-TTAR-A (1), TPA-T-TTAR-A (2), TPA-TTAR-T-A (3), and TPA-T-TTAR-T-A (4)) are synthesized for application in dye-sensitized solar cells (DSSC) based on a donor-π-bridge-acceptor (D-π-A) design. Here a simple triphenylamine (TPA) moiety serves as the electron donor, a cyanoacrylic acid as the electron acceptor and anchoring group, and a novel te...
Dye-sensitized solar cells (DSSCs) are fabricated using a novel 3C-SiC/TiO(2) nanocomposite as a photoelectrode to enhance the power conversion efficiency. Compared with a pristine nanocrystalline TiO(2) cell, a DSSC based on a 3C-SiC (0.04 wt%)/TiO(2) nanocomposite photoelectrode shows ~115% increase in power conversion efficiency.
In the current work, we have explored a novel synthetic route towards metalated porphycenes and their use in p-type NiO-based dye-sensitized solar cells. Particular emphasis is placed on the influence that the relative positioning of the anchoring group exerts on the DSSC performance.
Surface modification of nanostructured metal oxides with metal nanoparticles has been extensively used to enhance their nanoscale properties. The unique properties of metal nanoparticles associated with their controllable dimensions allow these metal nanoparticles to be precisely engineered for many applications, particularly for renewable energy. Here, a simple electrodeposition method to synt...
Structures and electronic properties of porphyrins with various Donor (D)-Acceptor (A) functionalization adsorbed on TiO2 (anatase) nanoparticles are studied using DFT calculations. Adsorption of porphyrin leads to a substantial loss of planarity (puckering) for the porphyrin rings due to the stabilization of the system by the interaction of the lone-pair of electrons of the N-atoms of porphyri...
OBJECTIVE Description of Greek patients with scleroderma with reference to (a) major organ disease, (b) autoantibodies, (c) survival rate, and (d) HLA associations. METHODS The clinical files of 254 patients were analysed retrospectively and a standardised clinical chart was completed with age at disease onset, sex, date of first and last visit, clinical and serological findings, organs affec...
در این پژوهش، به منظور بهبود عملکرد سلول های فوتوولتائیک حساس شده با رنگدانه، نانو لوله های-کربنی تک دیواره (swcnt) به ژل الکترولیت حاوی پلی اتیلن گلیکول (peg)، پلی وینیل-پیرولیدن(pvp) ، ید (i2) و پتاسیم یدید (ki) افزوده شد. ولتاژ مدار باز (voc) برابر v 47/0، جریان مدار بسته (jsc) برابر ma/cm2 82/3 و بازده ای برابر با 85/0% برای این dssc به دست آمد. طیف سنجی امپدانس الکتروشیمیایی (eis) برای تعی...
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