Results 31 to 40 of about 28,001 (312)

Control and characterization of individual grains and grain boundaries in graphene grown by chemical vapour deposition

, 2011
The strong interest in graphene has motivated the scalable production of high-quality graphene and graphene devices. As the large-scale graphene films synthesized so far are typically polycrystalline, it is important to characterize and control grain ...
Pei, Shin-Shem, Yong P. Chen, Peng, Peng, Deepak Pandey, Zhihua Su, Jifa Tian, Chung, Ting Fung, Liu, Zhihong, Jiming Bao, Luis A. Jauregui, Pandey, Deepak, Nathan P. Guisinger, Cao, Helin, Chen, Yong P., Qingkai Yu, Guisinger, Nathan P., Helin Cao, Dongguang Wei, Wu, Wei, Bao, Jiming, Yu, Qingkai, Ting Fung Chung, Peng Peng, Wei, Dongguang, Tian, Jifa, Wei Wu, Eric A. Stach, Colby, Robert, Shin-Shem Pei, Jauregui, Luis A., Robert Colby, Su, Zhihua, Stach, Eric A., Zhihong Liu   +33 more
core   +1 more source

Relaxation and tilting of single and double layer structures of AlGaSb/GaSb-LPE studied by high resolution x-ray diffraction

Materials Research Express, 2020
Epitaxial AlGaSb double-layer structures grown on GaSb (001) substrates by Liquid Phase Epitaxy (LPE) were analyzed by high-resolution x-ray diffraction (HRXRD).
Primavera Lopez-Salazar, Gabriel Juarez-Diaz, Javier Martinez-Juarez, Martha Virginia Sosa-Rivadeneyra, Jorge I Contreras-Rascón, Carlos Palomino-Jimenez, José Alberto Luna-Lopez   +6 more
doaj   +1 more source

Reduction of Dark Current in CMOS Image Sensor Pixels Using Hydrocarbon-Molecular-Ion-Implanted Double Epitaxial Si Wafers

Sensors, 2020
The impact of hydrocarbon-molecular (C3H6)-ion implantation in an epitaxial layer, which has low oxygen concentration, on the dark characteristics of complementary metal-oxide-semiconductor (CMOS) image sensor pixels was investigated by dark current ...
Ayumi Onaka-Masada, Takeshi Kadono, Ryosuke Okuyama, Ryo Hirose, Koji Kobayashi, Akihiro Suzuki, Yoshihiro Koga, Kazunari Kurita   +7 more
doaj   +1 more source

Optimizing process for pulsed laser additive manufacturing of nickel-based single crystal superalloy

Materials Research Express, 2023
The relationship between pulsed laser processing parameters and epitaxial growth of alloy is essential to additive manufacturing technology in repairing and manufacturing nickel-based single crystal (SX) superalloys. In this paper, orthogonal experiments
Shiwei Ci, Jingjing Liang, Jinguo Li, Yizhou Zhou, Xiaofeng Sun, Zonghui Cheng   +5 more
doaj   +1 more source

Multi-scale modelling of III-nitrides: from dislocations to the electronic structure

, 2009
Gallium nitride and its alloys are direct band gap semiconductors with a wide variety of applications. Of particular importance are light emitting diodes and laser diodes. Due to the lack of suitable lattice-matched substrates, epitaxial layers contain a

core   +1 more source

Evaluation of the influence of an embedded porous silicon layer on the bulk lifetime of epitaxial layers and the interface recombination at the epitaxial layer/porous silicon interface

, 2022
S.1118-1127Porous silicon plays an important role in the concept of wafer-equivalent epitaxial thin-film solar cells. Although porous silicon is beneficial in terms of long-wavelength optical confinement and gettering of metals, it could adversely affect
Dross, F., Poortmans, J., Radhakrishnan, H.S., Nieuwenhuysen, K. van, Mertens, R., Rosenits, Philipp, Gordon, I., Debucquoy, M.   +7 more
core   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Reversible Loss of Bernal Stacking during the Deformation of Few-Layer Graphene in Nanocomposites

, 2013
The deformation of nanocomposites containing graphene flakes with different numbers of layers has been investigated with the use of Raman spectroscopy. It has been found that there is a shift of the 2D band to lower wavenumber and that the rate of band ...
Novoselov, Kostya S., Li, L, Hinks, JA, Young, Robert J., Haigh, SJ, Warner, JH, Warner, Jamie H., Gong, Lei, Jalil, Rashid, Hinks, Jonathan A., Ding, Feng, Jalil, R, Xu, ZW, Li, Li, Xu, Z, Novoselov, KS, Riaz, Ibtsam, Ding, F, Haigh, Sarah J., Young, Robert J.; id_orcid, Haigh, Sarah J.; id_orcid, Kinloch, Ian A., Kinloch, IA, Gong, L, Xu, Ziwei, Young, RJ, Riaz, I   +26 more
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

High‐Throughput Design of Epitaxial Orientation for Functional Thin Films

Advanced Materials Interfaces
The structure and properties of functional thin films are highly sensitive to their epitaxial orientations. However, the orientation of the thin film is typically constrained by that of the substrate, making it challenging to achieve distinct ...
Liyufen Dai, Mingqiang Cheng, Mingqiang Huang, Xiangli Zhong, Gaokuo Zhong   +4 more
doaj   +1 more source