Search Results - "Heng, C.L."
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Effects of Yb doping on the structure and near band-edge emission of ZnO thin films on Si after high temperature annealing
Published in Journal of luminescence (01-06-2020)“…In this work, we have investigated the effects of ytterbium (Yb) doping concentration on the structure and near band-edge (NBE) photoluminescence (PL) of ZnO…”
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2
On the structure and ultraviolet emission of terbium doped zinc oxide thin films on silicon after high temperature treatment
Published in Results in physics (01-01-2022)“…•The UV photoluminescence (PL) emission from ZnO films on Si is enhanced by high temperature heat treatment up to 1000 °C.•The UV PL enhancement is increased…”
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3
Electrical characteristics of a metal–insulator–semiconductor memory structure containing Ge nanocrystals
Published in Physica. E, Low-dimensional systems & nanostructures (01-02-2005)“…A metal–insulator–semiconductor structure device with Ge nanocrystals in SiO 2 was synthesized and the electrical characteristics were investigated…”
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Journal Article Conference Proceeding -
4
Effects of ytterbium doping on the ultraviolet emissions of MgZnO films prepared by magnetron sputtering
Published in Journal of alloys and compounds (25-04-2024)“…In this work, we studied the effects of rare earth ytterbium (Yb) doping on the structure and ultraviolet (UV) emission properties of MgZnO films deposited by…”
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5
Effect of Eu doping on the near band edge emission of Eu doped ZnO thin films after high temperature annealin
Published in Journal of luminescence (2019)“…We studied the effect of europium (Eu) doping on the near band edge emission of ZnO thin films, fabricated by sputtering and high temperatures annealing. The…”
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6
Effect of Eu doping on the near band edge emission of Eu doped ZnO thin films after high temperature annealing
Published in Journal of luminescence (01-06-2019)“…We studied the effect of europium (Eu) doping on the near band edge emission of ZnO thin films, fabricated by sputtering and high temperatures annealing. The…”
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7
Intense ultraviolet photoluminescent emission from Yb doped ZnO thin films on Si after high temperature annealing
Published in Journal of alloys and compounds (25-02-2017)“…We report that the near band edge ultra-violet (UV) emission of ZnO sputtered films on Si can be enhanced greatly by incorporating about 5 at.% ytterbium in…”
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Strong enhancement of ultra-violet emission by Ce doping of ZnO sputtered films
Published in Materials letters (01-01-2016)“…We report that ultra-violet (UV) emission of ZnO can be made much more intense by incorporating Ce in the ZnO films. After annealing at 1100°C in N2 gas, the…”
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9
The formation of Yb silicates and its luminescence in Yb heavily doped silicon oxides after high temperature annealing
Published in Optical materials (01-04-2015)“…We report on the formation of ytterbium (Yb) silicates and its photoluminescence (PL) properties for heavily Yb doped Si oxide films after various annealings…”
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10
A 55nm SAW-Less NB-IoT CMOS Transceiver in an RF-SoC with Phase Coherent RX and Polar Modulation TX
Published in 2019 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) (01-06-2019)“…A SAW-Less NB-IoT transceiver for IoT devices with >10 years battery life and >164dB MCL is presented. Tunable RX Front-end supports 26 NB-IoT bands, achieves…”
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Conference Proceeding -
11
The formation of Ge nanocrystals in a metal–insulator–semiconductor structure and its memory effect
Published in Journal of crystal growth (15-02-2004)“…After rapid thermal annealing of an ultra-thin germanium (Ge) layer in a tri-layer insulator structure at 1000°C in argon, the formation of Ge nanocrystals in…”
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12
Charge-storage effects in a metal-insulator-semi-conductor structure containing germanium nano-crystals formed by rapid thermal annealing of an electron-beam evaporated germanium layer
Published in Applied physics. A, Materials science & processing (01-05-2004)“…Charge-storage effects in a metal-insulator-semi-conductor device containing germanium (Ge) nano-crystals were investigated. The Ge nano-crystals were formed…”
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13
The 1.54-{mu}m photoluminescence from an (Er, Ge) co-doped SiO{sub 2} film deposited on Si by rf magnetron sputtering
Published in Applied physics letters (08-11-2004)“…In this work, we report on quite strong 1.54-{mu}m photoluminescence (PL) from an (Er, Ge) co-doped SiO{sub 2} film deposited by rf magnetron sputtering. The…”
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14
Effects of rapid thermal annealing time and ambient temperature on the charge storage capability of SiO 2/pure Ge/rapid thermal oxide memory structure
Published in Microelectronic engineering (2003)“…A metal-insulator-semiconductor device with a tri-layer structure consisting of sputtered silicon dioxide (SiO 2) (∼50 nm)–evaporated pure germanium (Ge) (2.3…”
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15
A multi-band high performance single-chip transceiver for WCDMA/HSDPA
Published in 2009 IEEE Radio Frequency Integrated Circuits Symposium (01-06-2009)“…A multi-band (bands I, II, V, VIII [option]) single-chip RFIC has been implemented in 0.18 mum SiGe BiCMOS process for WCDMA/HSDPA applications. The…”
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Conference Proceeding -
16
Effects of rapid thermal annealing time and ambient temperature on the charge storage capability of SiO2/pure Ge/rapid thermal oxide memory structure
Published in Microelectronic engineering (01-04-2003)“…A metal-insulator-semiconductor device with a trilayer structure consisting of sputtered silicon dioxide (SiO2) (#~50 nm)-evaporated pure germanium (Ge) (2.3…”
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Conference Proceeding Journal Article -
17
Precipitation and crystallization of nanometer Si clusters in annealed Si-rich SiO 2 films
Published in Journal of crystal growth (2000)“…Si-rich SiO 2 films with three different degrees of Si-richness were deposited by RF magnetron sputtering using Si–SiO 2 composite targets. X-ray photoelectron…”
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Electrical characterization of a trilayer germanium nanocrystal memory device
Published in Microelectronic engineering (01-04-2003)“…In this paper, we report the effects of the thickness of the middle layer and the rapid thermal oxide (RTO) layer on the charge storage capability of the…”
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Journal Article Conference Proceeding -
19
Precipitation and crystallization of nanometer Si clusters in annealed Si-rich SiO2 films
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20
Influences of thicknesses of SiO 2 layers on electroluminescence from amorphous Si/SiO 2 superlattices
Published in Physica. B, Condensed matter (1999)“…Amorphous Si/SiO 2 superlattices, with four periods, have been grown using the two-target alternation magnetron sputtering technique. The thicknesses of Si…”
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