Results 81 to 90 of about 55,287 (317)

Chemical, synthesis, characterization and electrochemical properties of α‐Fe2O3/ZnO composite nano‐heterojunction for sensing application

open access: yesNano Select
Low temperature hydrothermal methods have been utilized to synthesize Hematite/Zinc oxide α‐Fe2O3/ZnO composite nano‐heterojunction nanorods grown on FTO glass substrates while monitoring the effect of different concentrations of urea on the morphology ...
Sreymean Ngok   +6 more
doaj   +1 more source

A Facile Method for Preparation of Cu2O-TiO2 NTA Heterojunction with Visible-Photocatalytic Activity

open access: yesNanoscale Research Letters, 2018
Based on highly ordered TiO2 nanotube arrays (NTAs), we successfully fabricated the Cu2O-TiO2 NTA heterojunction by a simple thermal decomposition process for the first time.
Yulong Liao   +7 more
doaj   +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

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

open access: yesAdvanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

open access: yesAdvanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Heterojunction Aggregation in Organic Electronics: From Performance Optimization to Multifunctional Applications

open access: yesAggregate
Organic electronic devices offer unique advantages in flexible, solution‐processable, and cost‐effective applications, where molecular stacking directly determines the optoelectronic properties of materials and devices.
Chaoyi Yan   +7 more
doaj   +1 more source

Nanopatterned Silicon Substrate Use in Heterojunction Thin Film Solar Cells Made by Magnetron Sputtering

open access: yesInternational Journal of Photoenergy, 2014
This paper describes a method for fabricating silicon heterojunction thin film solar cells with an ITO/p-type a-Si : H/n-type c-Si structure by radiofrequency magnetron sputtering.
Shao-Ze Tseng   +4 more
doaj   +1 more source

Heterojunction-Induced Local Charge Redistribution Boosting Energy-Saving Hydrogen Production via Urea Electrolysis

open access: yes
Substituting the oxygen evolution reaction by the urea oxidation reaction (UOR) is thermodynamically more favorable for energy-saving hydrogen production.
Yi Zhang (9093)   +6 more
core   +1 more source

Influence of NiO anode buffer layer prepared by solution on performance of bulk-heterojunction solar cells [PDF]

open access: yes, 2012
We investigate the properties of NiO thin films prepared by sol–gel solution and the photovoltaic performance of bulk-heterojunction (BHJ) solar cells based on NiO thin films as anode buffer layers with various film thickness and amorphous–crystalline ...
Kim, Kyung Ho   +4 more
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

open access: yesAdvanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

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