Journal ArticleDOI
Probing the strain effect on near band edge emission of a curved ZnO nanowire via spatially resolved cathodoluminescence.
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TLDR
The result indicates that the optical band gap of ZnO nanowires is quite sensitive to and can be readily modulated by the induced strain via simply curving the nanowire, which has potential applications for designing new optical-electromechanical (OEM) and flexible optoelectronic nanodevices.Abstract:
Curved ZnO nanowires were deliberately prepared on a Si substrate and the strain effect on their near band edge (NBE) emission was investigated by spatially resolved cathodoluminescence (CL). By moving the electron beam step-by-step across individual curved nanowires and acquiring the CL spectra simultaneously, we found that the NBE emissions from the inner region of the curved nanowires with compressive strain show blueshift, while those from the outer region with tensile strain show redshift. Both the strains have been estimated from the local curvature by a geometrical model and have been further examined by high-resolution transmission electron microscopy. A nearly linear relation between the strain and the peak energy shift in NBE emission was obtained. The result indicates that the optical band gap of ZnO nanowire is quite sensitive to and can be readily modulated by the induced strain via simply curving the nanowire, which has potential applications for designing new optical-electromechanical (OEM) and flexible optoelectronic nanodevices.read more
Citations
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Journal ArticleDOI
ZnO nanowire lasers
TL;DR: The mechanism of lasing in ZnO (nanowires) is the subject of a strong debate that is considered at the end of this review, and the special features resulting from the sub-wavelength dimensions are emphasized by presenting the results on single ZNO nanowires lying on a substrate.
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An analysis of the extension of a ZnO piezoelectric semiconductor nanofiber under an axial force
TL;DR: In this paper, the axial extension of an n-type ZnO piezoelectric semiconductor nanofiber under an axial force was analyzed, and simple and analytical expressions for the electromechanical fields and electron concentration in the fiber were obtained.
Journal Article
Electronic and mechanical coupling in bent ZnO nanowires
Xiaobing Han,Liangzhi Kou,Xiaoli Lang,Jianbai Xia,Ning Wang,Rui Qin,Jing Lu,Jun Xu,Zhi-Min Liao,Xinzheng Zhang,Xudong Shan,Xuefeng Song,Jingyun Gao,Wanlin Guo,Dapeng Yu +14 more
TL;DR: In this article, a low-temperature (81 K) cathodoluminescence (CL) study of ZnO nanowires bent into L- or S-shapes is presented.
Journal ArticleDOI
Electric potential and carrier distribution in a piezoelectric semiconductor nanowire in time-harmonic bending vibration
TL;DR: In this paper, a ZnO piezoelectric semiconductor nanowire with shear deformation was studied for energy harvesting application, where the wire is a cantilever fixed at one end and is driven by a time-harmonic transverse shear force at the other end.
Journal ArticleDOI
Tailoring Exciton Dynamics by Elastic Strain- Gradient in Semiconductors
Xuewen Fu,Cong Su,Cong Su,Qiang Fu,Xinli Zhu,Rui Zhu,Chuanpu Liu,Zhi-Min Liao,Jun Xu,Wanlin Guo,Ji Feng,Ju Li,Dapeng Yu +12 more
TL;DR: Cathodoluminescence spectroscopy analysis on purely bent ZnO microwires verifies that excitons can be effectively driven and concentrated along the elastic strain-gradient.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Journal ArticleDOI
Room-temperature ultraviolet nanowire nanolasers
Michael H. Huang,Samuel S. Mao,Henning Feick,Haoquan Yan,Yiying Wu,Hannes Kind,Eicke R. Weber,Richard E. Russo,Peidong Yang,Peidong Yang +9 more
TL;DR: Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated and self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process.
Journal ArticleDOI
Hybrid Nanorod-Polymer Solar Cells
TL;DR: It is demonstrated that semiconductor nanorods can be used to fabricate readily processed and efficient hybrid solar cells together with polymers and Tuning the band gap by altering the nanorod radius enabled us to optimize the overlap between the absorption spectrum of the cell and the solar emission spectrum.
Journal ArticleDOI
Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport
TL;DR: In this paper, the capacitance matrix was calculated for different chain lengths using the software package FastCap MIT (1992) and a ligand shell dielectric constant of 3.14 aF.
Journal ArticleDOI
Growth of nanowire superlattice structures for nanoscale photonics and electronics.
Mark S. Gudiksen,Lincoln J. Lauhon,Jianfang Wang,David C. Smith,Charles M. Lieber,Charles M. Lieber +5 more
TL;DR: Single-nanowire photoluminescent, electrical transport and electroluminescence measurements show the unique photonic and electronic properties of these nanowire superlattices, and suggest potential applications ranging from nano-barcodes to polarized nanoscale LEDs.