Materials Literature
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The effect of cascaded energy heterojunctions on geminate charge recombination in organic photovoltaic devices is examined using a kinetic Monte Carlo model. The structure of the cascaded heterojunction, which encourages spatial separation of the geminate charge pair, is varied to recreate that found in ternary blends…
Power conversion efficiencies in excess of 7% have been achieved with bulk heterojunction (BHJ)-type organic solar cells using two components: p- and n-doped materials. The energy level and absorption profile of the active layer can be tuned by introduction of an additional component. Careful design of the additional…
Water soluble oligomers of cellulose were produced by milling acidulated microcrystalline cellulose. Acids with low pKa were found to be more effective for the treatment. The yield of water soluble fraction was proportional to the increasing severity of milling or the acid amount. Soluble oligomers were found to have…
Three composite sponges were made with 10% of curcumin and by using polymers, namely, chitosan and gelatin with various ratios. The chemical structure and morphology were evaluated by FTIR and SEM. These sponges were evaluated for water absorption capacity, antibacterial activity,in vitrodrug release, andin vivowound…
Plasmonic core-shell nanoparticles (PCSNPs) can function as nanoantennas and improve the efficiency of dye-sensitized solar cells (DSSCs). To achieve maximum enhancement, the morphology of PCSNPs needs to be optimized. Here we precisely control the morphology of Au@TiO2 PCSNPs and systematically study its influence on…
We demonstrate the monolithic integration of green and orange InGaN-based nanocolumn light-emitting diodes (LEDs). Four nanocolumn LED crystals (LEDs 1 to 4), which consisted of regularly arranged InGaN-based nanocolumns in a triangular lattice of 400 nm lattice constant, were grown on the same GaN template on a (0001…
One of the challenges in designing recycled asphalt mixtures with a high amount of reclaimed asphalt pavement (RAP) is estimating the blending degree between RAP binder and added virgin bitumen. The extent of blending is crucial because asphalt concrete response is influenced by the final binder properties. This paper…
A new highly twisted asymmetric anthracene derivative with naphthalene and triphenylamine substituted xylene was synthesized as an extremely deep blue emitting material. A non-doped device using the new asymmetric blue emitter displays a maximum EQE of 4.62% with CIE color coordinates of (0.154, 0.049).
An integrated self-charging power cell (SCPC) is realized from a CuO/PVDF nanocomposite piezo-anode. The efficiency of the integrated SCPC is higher than that of the non-integrated SCPC. The intimate and large contact between CuO and PVDF results in an effective use of the piezoelectric field in the internal piezo-ele…
This work deals with the effect of Al2O3 on wear properties of AA7075 metal matrix composite and the results were optimized by Taguchi technique. The composites were prepared by conventional liquid casting method with varying the Al2O3 content. The wear test was conducted with pin-on-disc apparatus with the controllin…
Structure-electrochemical property correlation is presented for lithium-manganese-rich layered-layered nickel manganese cobalt oxide (LMR-NMC) having composition Li1.2Co0.1Mn0.55Ni0.15O2 (TODA HE5050) in order to examine the possible reasons for voltage fade during short-to-mid-term electrochemical cycling. The Li1.2C…
Unlike most conventional anode materials, the newly developed TiNb2O7 (TNO) does not form a solid electrolyte interface (SEI) layer, which makes it safe for high power requiring lithium-ion batteries. In this paper, we demonstrated an SBA-15 confined synthetic approach to prepare TNO nanoparticles (S-TNO) with a small…
A new green method for the synthesis of reduced graphene oxide–gold nanoparticle (rGO–AuNP) hybrids in aqueous solution that exploits the ability of ascorbic acid (AA) to operate as an effective dual agent for both graphene oxide (GO) and gold ion reduction is reported. Through careful investigation of the production…
Organic–inorganic hybrid solar cells were expected to adopt the advantages of both organic and inorganic materials. Due to several crucial problems, the power conversion efficiency of most hybrid solar cells was lower than 1%. Recent work reported the highest power conversion efficiency of a hybrid solar cell as 11.3%…
Finely dispersed Pd nanoparticles (PdNPs) anchored to CoAl layered double hydroxide nanowalls (LDH-NWs) have been fabricated via a facile in situ redox reaction between the LDH-NWs and the PdCl42− precursor. The integrated LDH-NWs play the roles of both a hierarchical support and a reductant without any external agent…
ZnFe2O4 coupled TiO2 nanotube arrays (ZnFe2O4–TiO2 NTAs) were synthesized by modifying TiO2 nanotube arrays with ZnFe2O4 nanoparticles. Self-organized TiO2 NTAs with a tube diameter of 100 nm and length of 400 nm were prepared by an electrochemical anodization method. ZnFe2O4 nanoparticles were deposited on the surfac…
This paper describes a standard replication approach for preparing transparent elastomeric conductors with single-walled carbon nanotubes (SWCNTs) inlaid just below the surface. The elastic conductors were fabricated by spray coating a SWCNT suspension in chloroform on a fluorinated substrate, followed by the standard…
Herein, we report an effective and simple strategy to greatly improve the photoactivity of CdO nanorods (NRs) by decorating them with CdS. The CdO–CdS heterostructured NRs grown on a FTO substrate exhibited substantially higher visible-light-driven photoactivity for a PEC cell and the degradation of methylene blue (MB…
AIM: The current work is aimed at understanding the effect of pH on the thermal stability of hen egg white lysozyme (HEWL) at high concentration (200 mg/mL). MATERIALS AND METHODS: Fourier Transform Infrared (FTIR) Spectroscopy with modified hardware and software to overcome some of the traditional challenges like wat…
The promising layered lithium-rich cathode materials, Li1.2Mn0.6−xNi0.2YxO2 (0 ≤ x ≤ 0.05), have been synthesized by substituting Mn4+ in Li1.2Mn0.6Ni0.2O2 with unusually large Y3+ ions, in order to improve their cycling performance and rate capability. An oxalate co-precipitation method is adopted in the synthetic pr…