Results 71 to 80 of about 1,095,040 (296)

APTES‐Mediated Ti‐Squarate MOF/n‐GaN Nanowire Photoanodes for Efficient Photoelectrochemical Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh   +15 more
wiley   +1 more source

How the Porous Transport Layer Dictates Membrane Electrode Assembly Performance of IrO2 Catalysts

open access: yesAdvanced Functional Materials, EarlyView.
The Schottky barrier formed at the catalyst | PTL interface critically governs both the initial performance and long‐term durability of the PEMWE, and its magnitude is dictated by the catalyst's work function. This limitation can be resolved by combining a rutile IrO2 core for efficient electron transfer with an amorphous IrOx shell for high surface ...
Hyeseong Jeon   +6 more
wiley   +1 more source

QUASI-DYNAMIC ANALYSIS OF THERMAL PERFORMANCE OF PARABOLIC TROUGH COLLECTORS [PDF]

open access: yes, 2009
Thermal performance testing of parabolic trough collectors and collector loops plays an important role in prototype testing, collector certification and solar field commissioning.
Pitz-Paal, Robert   +6 more
core  

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

open access: yesAdvanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain   +5 more
wiley   +1 more source

Modelling the performance of fluorescent solar collectors

open access: yes, 2011
The theoretical power conversion efficiency of a silicon solar cell with a fluorescent solar collector is believed to reach 90% of the maximum efficiency of an ideal silicon solar given by the Shockley-Queisser detailed balance limit, but the practical ...
Markvart, Tom   +3 more
core   +1 more source

Optimizing thermal design for sustainable renewable energy in a novel low-temperature desalination-power cycle

open access: yesJournal of Engineering and Applied Science
The escalating global demand for freshwater and clean energy necessitates innovative co-generation solutions. This study provides a comprehensive techno-economic comparison of flat plate solar collectors and evacuated tube solar collectors for a novel ...
Mahmoud Magdy, Ahmed Hamed, Mostafa Rizk
doaj   +1 more source

Thermophysical properties and applications of CaCl2-LiBr(1.35:1)/H2O as a working pair

open access: yes工程科学学报, 2018
Absorption refrigeration is an ideal way to utilize solar energy in summer. For a single-stage solar-driven refrigeration cycle based on the typical working pair of LiBr/H2O, the required generation temperature is up to 88.0℃, which is too high for the ...
LI Na, LUO Chun-huan, SU Qing-quan
doaj   +1 more source

Numerical Study of Convective Heat Transfer for Flat Unglazed Transpired Solar Collectors [PDF]

open access: yes, 2012
Convective heat transfer coefficients (CHTC) for flat unglazed transpired solar collectors have been computed using high-resolution 3-dimensional steady RANS CFD simulations.
Li, Siwei, Karava, Panagiota
core  

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

open access: yesAdvanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally   +2 more
wiley   +1 more source

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