Results 91 to 100 of about 36,951 (313)

Preparation and characterization of the defect–conductivity relationship of Ga-doped ZnO thin films deposited by nonreactive radio-frequency–magnetron sputtering [PDF]

, 2010
Ga-doped ZnO (ZnO:Ga) thin films were prepared by radio-frequency–magnetron sputtering on conventional glass substrates at room temperature. The structural, electrical, and optical properties of these films as a function of argon pressure and film ...
Pasquet, Isabelle, Tailhades, Philippe, J.M. Soon, Ph. Tailhades, Presmanes, Lionel, L. Presmanes, Soon, Jia Mei, A. Barnabé, Barnabé, Antoine, M. Lalanne, Lalanne, Maëva, I. Pasquet   +11 more
core   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

Advanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang, Christopher Wöpke, Toni Seiler, Jared Faisst, Mathias List, Meike Kuhn, Bekcy Joseph, Alexander Ehm, Dietrich R. T. Zahn, Yana Vaynzof, Eva M. Herzig, Roderick C. I. Mackenzie, Uli Würfel, Maria Saladina, Carsten Deibel   +14 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  

Increased efficiencies on CdTe solar cells via luminescence down-shifting with excitation energy transfer between dyes

, 2012
The external quantum efficiencies of CdTe solar cells fabricated by the atmospheric pressure metal organic chemical vapour deposition (AP–MOCVD) method have been measured with one and two dye doped luminescence down-shifting (LDS) layers on top ...
S.J.C. Irvine, Markvart, T., T. Markvart, L. Danos, Irvine, S.J.C., Parel, T., Barrioz, V., Irvine, S. J. C., Brooks, William, Markvart, Tom, Parel, Thomas, Barrioz, Vincent, Brooks, W. S. M., T. Parel, Markvart, Tomas, Danos, L., V. Barrioz, Danos, Lefteris, Brooks, W.S.M., Irvine, Stuart, W.S.M. Brooks   +20 more
core   +1 more source

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

Advanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang, Jiwon Ryu, Byungsoo Kang, Injong Oh, Dae‐Hee Cho, YoungHoi Cho, Seung S. Lee, Dong Hoe Kim, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Seungjun Chung, Byoung Koun Min, Phillip Lee   +15 more
wiley   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

Advanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Observation of lower defect density brought by excess PbI2 in CH3NH3PbI3 solar cells

AIP Advances, 2019
The introduction of excess PbI2 into CH3NH3PbI3 precursors has been reported to boost the efficiency of CH3NH3PbI3 solar cell. It was assumed that the excess PbI2 helped to reduce the defect density in CH3NH3PbI3 solar cell.
Minlin Jiang, Yuxia Wu, Yi Zhou, Zuo Wang   +3 more
doaj   +1 more source

Application of Laser Texturing in Silicon Solar Cell Technology

Medžiagotyra, 2014
Recently, a lot of attempts have been directed to increase the solar energy coupling within an active media of a solar cell. Silicon and other materials, which are used as the active media in solar cell, reflect a considerable part of solar light due to ...
Bogdan VOISIAT, Simonas INDRIŠIŪNAS, Gediminas RAČIUKAITIS, Irena ŠIMKIENĖ, Alfonsas RĖZA, Rasa SUZANOVIČIENĖ   +5 more
doaj   +1 more source

Preparation and characterization of suitable insulating and transparent conducting thin films for thin film electroluminescent devices by sol-gel process [PDF]

, 2001
Thin film electroluminescent (TFEL) displays are attractive because they are light, have low power consumption, wide viewing angle and long lifetime, are extremely rugged and can be used in hostile environments.
Alam, Mohammad Jahangir
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