Results 61 to 70 of about 7,689,647 (255)

Optical spectroscopy of thin film semiconductor structures [PDF]

, 1997
This thesis consists of a study of several thin film semiconductor structures of practical technological use either presently or in the near future. The first system studied is an ultra thin film single crystal gallium arsenide layer.
Eggleston, J.M., Eggleston, James Michael   +1 more
core  

Defect Detection in Thin-film Photovoltaics; Towards Improved Efficiency and Longevity [PDF]

, 2014
The photovoltaic (PV) industry is seeking to increase efficiency and functional lifetime of PV modules manufactured on polymer substrates. High resolution and high speed surface inspection for the quality control of the manufacture of large area flexible
Robbins, David, Robbins, D., Blunt, Liam, Fleming, Leigh, M. Elrawemi, Fleming, L., Centre for Precision Technologies, Huddersfield University, West Yorkshire. UK, Blunt, L., Sweeney, Francis, L. Blunt, D. Robbins, Elrawemi, Mohamed, L. Fleming, Centre for Process Innovation Limited, Sedgefield, County Durham. UK, F. Sweeney, Sweeney, F.   +15 more
core   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

Advanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son, Soyul Kwak, Heerin Noh, Minsang Kim, Doyeon Noh, Subhayan Chakraborty, Jaewon Lee, YongDeok Cho, Kyeongsoo Kim, Taewoong Eom, Moonyoung Kim, Jangwon Kim, Hoyoung Lee, Soyoung Lee, Jaehun Kim, Grace G. D. Han, Shin‐Tson Wu, Stefano Oscurato, Arri Priimagi, Marina Saphiannikova, Seungwoo Lee   +20 more
wiley   +1 more source

Crystallization study of the CuSbS₂ chalcogenide material for solar applications

, 2013
Second generation thin-film chalcogenide materials, in particular CuInGa(S,Se)2 (CIGS) and CdTe, have been among the most promising candidates for large-scale PV manufacturing and are quickly becoming commercial products. These materials offer stable and
Hayden, Brian, Al-Saab, Feras, Gholipour, B., Anastasopoulos, Alexandros, Hewak, D.W., Huang, C.C.   +5 more
core   +1 more source

Characterization of Nanocrystalline SiGe Thin Film Solar Cell with Double Graded-Dead Absorption Layer

International Journal of Photoenergy, 2012
The nanocrystalline silicon-germanium (nc-SiGe) thin films were deposited by high-frequency (27.12 MHz) plasma-enhanced chemical vapor deposition (HF-PECVD).
Chao-Chun Wang, Dong-Sing Wuu, Shui-Yang Lien, Yang-Shih Lin, Chueh-Yang Liu, Chia-Hsum Hsu, Chia-Fu Chen   +6 more
doaj   +1 more source

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

Advanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani, Justin Neu, Sung‐Joo Kwon, Runqio Song, Zixuan Chen, Tajah Trapier, Paschalis Gkoupidenis, David Ginger, Wei You, Jasper J. Michels, Harald Ade   +10 more
wiley   +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

Photovoltaic Performance Analysis of ITO/CdS/CIGS/Ag Ultrathin Film Solar Cells: Experimental Fabrication and Theoretical Performance Modeling [PDF]

E3S Web of Conferences
In this study, ITO/CdS/CIGS/Ag ultrathin film solar cell were prepared through PLD method. XRD analysis showed that CIGS film has a single crystal structure, while CdS film is polycrystalline.
Yigit Gezgin Serap, Kabakcı Yasemin Gündoğdu, Kılıç Hamdi Şükür   +2 more
doaj   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source