Results 41 to 50 of about 6,388 (236)

SCRATCH-RESISTANT ANTIREFLECTION COATING

, 2021
A scratch resistant, antireflection coating can include a plurality of layers of alternating high and low refractive index materials. In some cases, a ratio of the total thickness of the high refractive index materials to the total thickness of the low ...
Chen, Brad, Peng, Alvin
core  

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Effect of size and shape on reflective properties of silicon nanocone arrays

Journal of Hebei University of Science and Technology, 2018
In order to investigate the optical properties of silicon nanocone arrays with different sizes and shapes, the nanocone arrays are fabricated on silicon substrate by submicron dry etching process masked by self-assembled nano-particles.
Xiangmeng LI, Xijing ZHU, Huifen WEI, Xueliang CUI, Jiansu LI   +4 more
doaj   +1 more source

Antireflection of optical anisotropic dielectric metasurfaces

, 2023
We propose a hetero-nano-fin structure to further improve the efficiency of Pancharatnam–Berry phase metasurfaces. Two hetero-nano-fin types, MgF2/GaN and MgF2/Nb2O5, were investigated.
Chen-Yi Yu, Chih-Ming Wang, Wei-Lun Hsu, Yu-Hsuan Liao   +3 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

Advanced 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

Black-Si as a Photoelectrode

Nanomaterials, 2020
The fabrication and characterization of photoanodes based on black-Si (b-Si) are presented using a photoelectrochemical cell in NaOH solution. B-Si was fabricated by maskless dry plasma etching and was conformally coated by tens-of-nm of TiO2 using ...
Denver P. Linklater, Fatima Haydous, Cheng Xi, Daniele Pergolesi, Jingwen Hu, Elena P. Ivanova, Saulius Juodkazis, Thomas Lippert, Jurga Juodkazytė   +8 more
doaj   +1 more source

New high-efficiency protective coating containing glycidyl-POSS nanocage for improvement of solar cell electrical parameters [PDF]

Journal of Nanostructures, 2019
Various antireflection thin films are often used to cover glass to increase solar cell electrical parameters. In the recent years many efforts have been done to develop and improve of solar cell films with high electrical output.
Kamal Ghani, Narges Kiomarsipour, Mahdi Ranjbar   +2 more
doaj   +1 more source

Influence of window layer thickness on double layer antireflection coating for triple junction solar cells

, 2011
The optimization of a SiO2/TiO2, SiO2/ZnS double layer antireflection coating(ARC) on Ga0.5In0.5P/In0.02Ga0.98As/Ge solar cells for terrestrial application is discussed. The Al0.5In0.5P window layer thickness is also taken into consideration. It is shown
Wang, L.(ljwang09@semi.ac.cn), Yan Zhu, Shesong Huang, Ying Yu, Feng Zhan, Shaoqing Liu, Huang, Shesong, Haiqiao Ni, Niu, Zhichuan, Wang, Lijuan, Lijuan Wang, Zhan, Feng, Liu, Shaoqing, Zhichuan Niu, Yu, Ying, Ni, Haiqiao, Zhu, Yan   +16 more
core   +1 more source

Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry

Advanced Materials, EarlyView.
Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi, Kody Whisnant, Ben J. Olohan, E. Petronijevic, G. Dan Pantoș, Nicholas A. Kotov, Ventsislav K. Valev   +6 more
wiley   +1 more source

Pulse-length dependence of the laser-induced damage behavior of a fused-silica antireflective metasurface

High Power Laser Science and Engineering
A broadband, antireflective metasurface optic on a silica substrate is subjected to laser-induced damage-threshold measurements to quantify its performance under exposure to high-intensity/fluence laser pulses in the near-infrared at four pulse durations,
Kyle R. P. Kafka, Brittany Hoffman, Hu Huang, Alexei Kozlov, Marek Stehlik, Stavros G. Demos   +5 more
doaj   +1 more source