Dattatray Gadkari

10 Questions 63 Answers 0 Followers

Questions related from Dattatray Gadkari

Why did the peaks shift towards left and right for the XRD diffraction patterns?

With reference to VDS experiments of bulk detached crystals, InSb, GaSb and its doped crystal, have been grown by Vertical Directional Solidification Process (VDS-Process). XRD diffraction...

27 January 2022 9,893 10 View

Why the mobility of the Indium dopd GaSb is increased, while the Gallium doped InSb decreased?

The III-V Sb-based bulk crystals have been grown by Vertical Directional Solidification process (VDS-process). The Ga(1-X)InXSb and In(1-X)GaXSb for x

17 October 2020 5,901 4 View

Why did the ternary Ga(1-X)InXSb detached bulk crystal showed the higher mobility than the Indium (In<0.3) doped binary GaSb crystals?

We have been growing the III-Sb based bulk entire detached / contactless crystals using indigenous designed and developed the vertical directional solidification process (VDS-process). However ,...

13 June 2020 4,206 0 View

Are the conditions for detached crystal growth in space and terrestrial laboratories similar?

The several detached semiconductor bulk crystals (InSb, GaSb etc.) have been grown, since 1993, in our laboratory. These grown crystals showed micro and macro homogenous composition with...

04 May 2015 1,614 2 View

How did the solid drop observed at the end in some of the ternary detached ingots grow by the VDS method?

We have been growing bulk ternary crystal by using vertical directional solidification (VDS) technique. The qualities of the wafers cut from these ingots have been assessed by the different...

11 January 2015 6,729 0 View

How to grow the Infrared device grade bulk crystals of InSb and GaSb ?

HgCdTe is used for the x-ray and gamma-ray detections and it needs cooling. However, this material has inherent problem such as changes properties with time. Therefore InSb doped materials is the...

18 October 2014 1,043 0 View

Why do infrared devices require high quality crystals?

The bulk of InSb and GaSb crystals grown by VDS have been used for infrared applications. Crystal performance needs to be improved for sensors and detectors.

17 October 2014 948 2 View

Why did crystal grown in microgravity / space show a detachment, enhancement, in crystalline quality?

In the literature, several crystal growths in microgravity are reported. However, the reasons for detached growth are not clearly understood. The similar observations are also seen in terrestrial...

10 October 2014 2,371 3 View

What is the difference between the detached crystal growth in space and detached crystal growth in terrestrial laboratory?

We have experienced the bulk crystal growth of InSb / GaSb and its doped crystal by the novel technique such as vertical directional solidification (VDS) has shown detached bulk crystal growth in...

28 September 2014 2,102 3 View

How to grow bulk high quality InSb and GaSb crystal for the Infrared device applications?

For infrared and optoelectronic devices requires high quality crystal. These crystals must be chemically and electrically homogeneously uniform bulk crystals for high device yield. The production...

27 September 2014 3,339 0 View