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Porous silicon structures are produced by electrochemical etching of silicon wafers in organic solutions of_____

Porous silicon structures are produced by electrochemical etching of silicon wafers in organic solutions of_____ Correct Answer dimethylformamide

Typically, porous silicon structures are produced by electrochemical etching of silicon wafers in organic solutions of acetonitrile (CH3CN) or dimethylformamide (C3H7NO) containing hydrofluoric acid (HF).

Related Questions

If Price of wafers is increased by 10%, Krishna could buy 2 kg less wafers in Rs. 440. Now Krishna purchased 5 kg wafers for his birthday, then find how much more money paid by Krishna.
To etch the surface of silicon wafers at specific positions by metal-assisted etching, nano-porous anodic alumina (NAA) mask technique is used.
It can be said that metal-assisted etching of silicon is an alternative approach to conventional electrochemical etching methods.
Electronic holes in metal-assisted etching of porous silicon oxidise silicon atoms.
The etching rate of silicon wafers under light illumination is much slower than under dark conditions.
By studying all following options, select a pair that uses most closely similar reasoning. a. Researchers have looked at the communication between different animals and found that meerkats have a series of alerts and calls that fail into two categories, greetings and alarms. Since we can be sure that this meerkat is not calling as a greeting, we must accept that he is attempting to raise the alarm. b. Farmers must choose between using organic or non-organic fertilisers on their land. Organic fertilisers can produce a lower crop yield and farmers may find it difficult to change to organic methods if they have been using non-organic methods for some time. Farmers should, therefore, consider the longer-term impacts of their decisions. c. Either young persons are getting cleverer each year or examinations are becoming easier for students to pass. Since there is very little evidence from IQ testing and other supposed benchmarks that young persons are more intelligent now than in the past, we must conclude that the examination system is easier for students today than it was in the past. d. Closed wood burning chulhas are a better way to cook your food than open fire chulhas. Closed wood burning chulhas are highly efficient, whereas the open fire of open fire chulhas loses a great deal of heat in the air. More people should, therefore, use closed wood burning chulhas in their homes.
Silicon devices can be employed for a higher temperature limit (190°C to 200°C) as compared to germanium devices (85°C to 100°C). With respect to this, which of the following are incorrect? 1) Higher resistivity of silicon 2) Higher gap energy of silicon 3) Lower intrinsic concentration of silicon 4) Use of silicon devices in high-power applications Select the correct answer using the code given below:
In which temperature range the etching rate in metal-assisted etching of silicon increases?
Illumination of light in metal-assisted etching of silicon affects the etching rate.
The morphology of silicon nanowires produced by metal-assisted etching of silicon changes with the doping level.