Formation of p-n homojunctions in n-ZnO bulk single crystals by diffusion from a Zn3P2 source

2005 ◽  
Vol 87 (22) ◽  
pp. 222113 ◽  
Author(s):  
Soohwan Jang ◽  
Jau-Jiun Chen ◽  
B. S. Kang ◽  
F. Ren ◽  
D. P. Norton ◽  
...  
Keyword(s):  
Single Crystals ◽  
Bulk Single Crystals

Dimensionally-Controlled Hydrothermal Tm3+-doped Oxidic Nanocrystals and Their Photoluminescence Properties

2010 ◽  
Vol 1247 ◽  
Author(s):  
Rocío Calderón-Villajos ◽  
Carlos Zaldo ◽  
Concepción Cascales
Keyword(s):  
Single Crystals ◽  
Fluorescence Lifetimes ◽  
Photoluminescence Properties ◽  
Reaction Conditions ◽  
Hydrothermal Processes ◽  
Bulk Single Crystals ◽  
Template Free ◽  
Reaction Media

AbstractControlled reaction conditions in simple, template-free hydrothermal processes yield Tm-Lu2O3 and Tm-GdVO4 nanocrystals with well-defined specific morphologies and sizes. In both oxide families, nanocrystals prepared at pH 7 reaction media exhibit photoluminescence in ∼1.95 μm similar to bulk single crystals. For the lowest Tm3+ concentration (0.2 % mol) in GdVO4 measured 3H4 and 3F4 fluorescence lifetimes τ are very near to τrad.

Local current leakage at threading dislocations in GaN bulk single crystals grown by a modified Na-flux method

2019 ◽  
Vol 58 (5) ◽  
pp. 050918 ◽  
Author(s):  
Takeaki Hamachi ◽  
Tetsuya Tohei ◽  
Masayuki Imanishi ◽  
Yusuke Mori ◽  
Akira Sakai
Keyword(s):  
Single Crystals ◽  
Threading Dislocations ◽  
Flux Method ◽  
Current Leakage ◽  
Local Current ◽  
Bulk Single Crystals

scholarly journals Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhenghao Chen ◽  
Bhaskar Paul ◽  
Sanjib Majumdar ◽  
Norihiko L. Okamoto ◽  
Kyosuke Kishida ◽  
...  
Keyword(s):  
Single Crystals ◽  
Plastic Flow ◽  
Room Temperature ◽  
Resolve Shear Stress ◽  
Temperature Deformation ◽  
Slip Systems ◽  
Compression Tests ◽  
Plastic Deformation Behavior ◽  
Bulk Single Crystals ◽  
Micropillar Compression

AbstractThe plastic deformation behavior of single crystals of two transition-metal diborides, ZrB2 and TiB2 with the AlB2 structure has been investigated at room temperature as a function of crystal orientation and specimen size by micropillar compression tests. Although plastic flow is not observed at all for their bulk single crystals at room temperature, plastic flow is successfully observed at room temperature by the operation of slip on {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 3> in ZrB2 and by the operation of slip on {1$${\bar{1}}$$ 1 ¯ 00}<0001> and {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 0> in TiB2. Critical resolve shear stress values at room temperature are very high, exceeding 1 GPa for all observed slip systems; 3.01 GPa for {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 3> slip in ZrB2 and 1.72 GPa and 5.17 GPa, respectively for {1$${\bar{1}}$$ 1 ¯ 00}<0001> and {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 0> slip in TiB2. The identified operative slip systems and their CRSS values are discussed in comparison with those identified in the corresponding bulk single crystals at high temperatures and those inferred from micro-hardness anisotropy in the early studies.

Ultraviolet light emission from self-organized p–n domains in cubic boron nitride bulk single crystals grown under high pressure

2002 ◽  
Vol 81 (22) ◽  
pp. 4145-4147 ◽  
Author(s):  
T. Taniguchi ◽  
K. Watanabe ◽  
S. Koizumi ◽  
I. Sakaguchi ◽  
T. Sekiguchi ◽  
...  
Keyword(s):  
High Pressure ◽  
Boron Nitride ◽  
Single Crystals ◽  
Ultraviolet Light ◽  
Light Emission ◽  
Cubic Boron Nitride ◽  
Self Organized ◽  
Bulk Single Crystals

Er3+-doped PbF2: Comparison between nanocrystals in glass-ceramics and bulk single crystals

2006 ◽  
Vol 179 (7) ◽  
pp. 1995-2003 ◽  
Author(s):  
G. Dantelle ◽  
M. Mortier ◽  
G. Patriarche ◽  
D. Vivien
Keyword(s):  
Single Crystals ◽  
Glass Ceramics ◽  
Bulk Single Crystals

POSSIBLE EVIDENCE FOR A VALENCE BAND SATELLITE IN PHOTOEMISSION SPECTRA FROM Sc(0001)

1994 ◽  
Vol 01 (04) ◽  
pp. 649-653 ◽  
Author(s):  
A.J. PATCHETT ◽  
S.S. DHESI ◽  
R.I.R. BLYTH ◽  
S.D. BARRETT
Keyword(s):  
Electronic Structure ◽  
Rare Earth ◽  
Binding Energy ◽  
Single Crystals ◽  
Valence Band ◽  
Ground State ◽  
Rare Earth Metals ◽  
Final State ◽  
Bulk Single Crystals ◽  
The Creation

An intense photoemission feature is observed at a binding energy of ~10 eV in the UV photoemission spectra from the (0001) surfaces of bulk single crystals of rare-earth metals. This emission cannot be explained in terms of ground state electronic structure and we have been unable to attribute its existence to the presence of contamination of the surface. We present some evidence that may indicate its origin lies in the creation, by the photoemission process, of a metastable two-hole final state.

Photoinduced Reversible Local Deformation of the Surface Relief in Bulk Single Crystals of TlInSe2, TlGaTe2, and TlSe

2018 ◽  
Vol 44 (7) ◽  
pp. 643-645 ◽  
Author(s):  
Y. G. Shim ◽  
T. Asahi ◽  
K. Wakita ◽  
N. T. Mamedov ◽  
E. N. Alieva ◽  
...  
Keyword(s):  
Single Crystals ◽  
Surface Relief ◽  
Local Deformation ◽  
Bulk Single Crystals
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