Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Il-Hyoung Jung"'
Publikováno v:
Applied Surface Science. 462:378-386
In this work, ultra-high speed flash white light (FWL) sintering method of copper nanoparticle pastes on silicon wafer substrate, was developed to produce highly conductive and low-cost copper electrodes for crystalline silicon solar cells. FWL sinte
Publikováno v:
Journal of Electroceramics. 13:471-478
For the application of high temperature piezoelectric devices, Al3 + substituted La3Ta0.5Ga5.5O14 (LTG) crystals with chemical formula of La3Ta0.5Ga5.5 − xAlxO14 (LTGA) were synthesized and grown by μ-PD (Micro-pulling-down) and Czochralski techni
Publikováno v:
Journal of Crystal Growth. 262:40-47
Alkali-earth ion (Ba2+) substituted La3Ta0.5Ga5.5O14 (LTG) crystals with a chemical formula of La3−xBaxTa0.5+x/2Ga5.5−x/2O14 (LBTG), suitable for piezoelectric applications, were grown by the micro-pulling-down (μ-PD ) and Czochralski technique.
Publikováno v:
Materials Letters. 56:1069-1073
For the improvement of piezoelectric properties, alkali-earth (AE) ion (Ba 2+ )-substituted La 3 Ta 0.5 Ga 5.5 O 14 (LTG) crystals with chemical formula of La 3− x Ba x Ta 0.5+ x /2 Ga 5.5− x /2 O 14 (LBTG) were investigated. Solid solution range
Publikováno v:
Materials Letters. 51:129-134
The stoichiometric composition (Sr 3 NbGa 3 Si 2 O 14 ) was found to melt incongruently. Hence, the composition of the starting melt for Czochralski growth was chosen from the differential thermal analysis (DTA) results. We found that Sr 3 Nb 0.95 Ga
Publikováno v:
Journal of Crystal Growth. 226:101-106
Solid solution range and congruency of Sr 3 Nb 1− x Ga 3+(5/3) x Si 2 O 14 (SNGS) were examined by powder X-ray diffraction and differential thermal analysis (DTA), which enables the selection of a suitable starting composition for micro-pulling-do
Publikováno v:
Journal of Crystal Growth. 220:275-280
Solid solution range of La3(TaxGa1−x) Ga5O14 (LTG) was examined. On the basis of these data, LTG single crystals have been grown by the Czochralski method. In order to investigate the influence of starting melt composition on growth characteristics
Publikováno v:
Materials Letters. 46:354-357
The defect distribution of grown Langasite crystals as different growth conditions and selective chemical etching on La 3 Ga 5 SiO 14 single crystals of various etchants were investigated. The applications of piezoelectric devices were shown to be ne
Autor:
Il Hyoung Jung, Keun Ho Auh
Publikováno v:
Materials Letters. 41:241-246
Langasite (La 3 Ga 5 SiO 14 ) is a new piezoelectric material which is similar to quartz, LN (LiNbO 3 ) and LT (LiTaO 3 ) in its acoustic behavior. In this study, langasite single crystals were grown by the self-designed Czochralski system. We also i
Publikováno v:
ChemInform. 34
A3NbGa3Si2O14 (A=Sr, Ca) compounds were grown using the Czochralski method after preparing by solid-state reaction. X-ray structure analysis of grown Sr3NbGa3Si2O14 (SNGS) and Ca3NbGa3Si2O14 (CNGS) single crystals showed that they were isostructural