Effect of Hydrobromic Acid Concentration on the Chemical Etching Behavior of PbTe and Pb1 –xSnxTe Single Crystals in Aqueous H2O2–HBr–Ethylene Glycol Solutions

2019 ◽  
Vol 55 (7) ◽  
pp. 641-647
Author(s):  
G. P. Malanych ◽  
V. N. Tomashyk
Keyword(s):  
Ethylene Glycol ◽  
Single Crystals ◽  
Acid Concentration ◽  
Hydrobromic Acid ◽  
Chemical Etching ◽  
Etching Behavior

The observation of defects on (100) CdTe surfaces by chemical etching

1992 ◽  
Vol 50 (2) ◽  
pp. 1424-1425
Author(s):  
M.E. Lee
Keyword(s):  
Single Crystal ◽  
Grain Boundaries ◽  
Single Crystals ◽  
Chemical Etching ◽  
Crystalline Perfection ◽  
Crystalline Defects ◽  
High Incidence ◽  
Crystallographic Defects ◽  
Cdznte Substrates ◽  
Device Technology

The crystalline perfection of bulk CdTe substrates plays an important role in their use in infrared device technology. The application of chemical etchants to determine crystal polarity or the density and distribution of crystallographic defects in (100) CdTe is not well understood. The lack of data on (100) CdTe surfaces is a result of the apparent difficulty in growing (100) CdTe single crystal substrates which is caused by a high incidence of twinning. Many etchants have been reported to predict polarity on one or both (111) CdTe planes but are considered to be unsuitable as defect etchants. An etchant reported recently has been considered to be a true defect etchant for CdTe, MCT and CdZnTe substrates. This etchant has been reported to reveal crystalline defects such as dislocations, grain boundaries and inclusions in (110) and (111) CdTe. In this study the effect of this new etchant on (100) CdTe surfaces is investigated.The single crystals used in this study were (100) CdTe as-cut slices (1mm thickness) from Bridgman-grown ingots.

Hydroxo Verbindungen, 11. Zinn(II)-Ethylenglykolat, SnC2H4O2, ein polymerer Chelatkomplex mit 2-fach funktionellem Sauerstoff/ Hydroxy Compounds, 11. Tin(II) Ethylen Glycolate, SnC2H4O2, a Polymerie Chelate Complex with Bi-Functional Oxygen

1982 ◽  
Vol 37 (9) ◽  
pp. 1144-1145 ◽  
Author(s):  
Reinhard Nesper ◽  
Hans Georg von Schnering
Keyword(s):  
Ethylene Glycol ◽  
Single Crystals ◽  
Chelate Complex ◽  
3 Dimensional ◽  
Hydroxy Compounds ◽  
Rhombohedral Symmetry

AbstractTin(II) ethylene glycolate is prepared from freshly precipitated “tin(II)-hydroxide” on heating in ethylene glycol under reflux. The colourless single crystals, slightly distorted cubes, exhibit rhombohedral symmetry (R3̄-C3i2, ah = 1547.7 pm, cn= 871.6 pm, Z = 18). The structure is a 3-dimensional networks of linked tin(II) ethylene glycol chelates.

Unexpected Pyramid Texturization of n-Type Ge (100) via Electrochemical Etching: Bridging Surface Chemistry and Morphology

2018 ◽  
Vol 282 ◽  
pp. 94-98
Author(s):  
Graniel Harne A. Abrenica ◽  
Mikhail V. Lebedev ◽  
Hy Le ◽  
Andreas Hajduk ◽  
Mathias Fingerle ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Surface Chemistry ◽  
Photoelectron Spectroscopy ◽  
Chemical Etching ◽  
Electrochemical Etching ◽  
Spectroscopic Techniques ◽  
X Ray ◽  
Etching Behavior ◽  
Effect Of Oxygen

We report on the (electro) chemical etching behavior, surface morphology and composition of n-type Ge (100) in acidic halide solutions using various analytical and spectroscopic techniques. The use of an integrated (electro) chemical etching chamber connected to X-ray photoelectron spectroscopy instrument to exclude the effect of oxygen from atmosphere is highlighted.

Chemical recycling of the waste anodic electrolyte from the TiO2 nanotube preparation process to synthesize facet-controlled TiO2 single crystals as an efficient photocatalyst

2014 ◽  
Vol 16 (5) ◽  
pp. 2745-2753 ◽  
Author(s):  
Ai-Yong Zhang ◽  
Lu-Lu Long ◽  
Chang Liu ◽  
Wen-Wei Li ◽  
Han-Qing Yu
Keyword(s):  
Water Treatment ◽  
Ethylene Glycol ◽  
Single Crystals ◽  
Tio2 Nanotube ◽  
Anodic Process ◽  
Chemical Recycling ◽  
Preparation Process

To prepare TiO2 single crystals by recycling the waste ethylene glycol electrolyte from the widely-used anodic process for efficient photocatalytic water treatment.

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