wow it reminds me of my long time ago thesis experiments and now you introduced new ideas thanks and that's very interesting. My solar cells were yielding 5% efficiency I would like to try your doping methods to see if the cells will get more efficient in converting sun light to electricity.
I am very Impressed by the ability of ZnO as Semiconductor to Pizoelectric to opto-electronic all in one pack can you make ZnO of this grade and share the details of its Dopent and purity.
There is no exact way but you can use trial and error method depending on molecular size to get a good quality thin film. Because quality depends on quality of chemicals, temperature, etc. Rough idea you can get in this video itself or you can avail many research papers on the same. Thank you🙏
How we can test it? How we can measure its work and ability ? How we can use this thin film in electronic project (like any photocondictive or photoresistor)? We need videos on this topics. Really we need. I will be really happy if you tell me. Thanks
You can use various characteristic techniques based on type of application you want to work on like absorption spectrum can be obtained or even I-V characteristics etc. Most important part is the quality of the film.. It has to be uniformly well deposited without any impurities. So more care is to be taken with respect to surrounding environment.
@@gyansampada4587 The pure CdS thin fiilms should not conduct but maybe the doped ones will .I will be keen if you post your measurements and thanks in advance.
We have to hold the glass substrate where there is no deposition of CdS. This avoids any toxins from getting in and also film quality will not be affected by fingerprints. So with caution you can handle even without gloves. I recommend not to take in the fumes during the process. Thank you 🙂
There are sooo many things wrong with this video. These are very toxic chemicals - cadmium is a heavy metal!!! Lab coat/gloves should be worn. Also this should be done inside a fume hood. PLEASE remove this video as it shows horrible chemistry technique from start to finish. (I have done similar synthesis for years and this is horrifying...you are going to destroy your health one of these times)
We had deposited it just for a small project with very less molarities in well ventilated area with necessary precautions. However thank you for sharing your suggestion 🙂
Thanks for sharing this video I did this method for deposition of CdS in my thesis back in 1984 for making solar cells good work anyway .
Thank you for sharing🙂
beautiful. good job
Thank you🙂
Very nice effort...... Thanks a lot madam to you and your Team 😊
Thank you 🙂
wow it reminds me of my long time ago thesis experiments and now you introduced new ideas thanks and that's very interesting. My solar cells were yielding 5% efficiency I would like to try your doping methods to see if the cells will get more efficient in converting sun light to electricity.
Sure.. Do come back and share your results too..
Thank you 🙂
may i know what is the ratio mixed in solution A (how many cadmium solution mix with EDTA) and in solution B?
You can make TFT right!!
Ya.. Need to manage it's quality for good efficiency👍
@@gyansampada4587 I mean Thin film Transistor
I am very Impressed by the ability of ZnO as Semiconductor to Pizoelectric to opto-electronic all in one pack can you make ZnO of this grade and share the details of its Dopent and purity.
Can we ues Ethanolamine(mono) as a complex agent instead of EDTA?
You can try and check whether deposition is uniform or not..
Kindly tell us the Calculation of taking gram of chemical??
There is no exact way but you can use trial and error method depending on molecular size to get a good quality thin film. Because quality depends on quality of chemicals, temperature, etc.
Rough idea you can get in this video itself or you can avail many research papers on the same.
Thank you🙏
Hi, how can I reach you to understand in more details..
U can use this platform only..
Madam ...did u send the glass plates directly for the studies?? Or powder??
Glass slides were cut into small pieces as required for characterization (1cm^2 for XRD and SEM etc.)
At 70 ° C for many hours you kept?
2 hours..
How we can test it?
How we can measure its work and ability ?
How we can use this thin film in electronic project (like any photocondictive or photoresistor)?
We need videos on this topics. Really we need.
I will be really happy if you tell me. Thanks
You can use various characteristic techniques based on type of application you want to work on like absorption spectrum can be obtained or even I-V characteristics etc.
Most important part is the quality of the film.. It has to be uniformly well deposited without any impurities. So more care is to be taken with respect to surrounding environment.
Hello is these thin film are conductive ?
If yes what is the conductivity?
Yes..
But accurately we have not done conductivity measurements..
@@gyansampada4587 The pure CdS thin fiilms should not conduct but maybe the doped ones will .I will be keen if you post your measurements and thanks in advance.
Why EDTA is used in the reaction
pls tell me reaction if i have to prepare cadmium oxide thin film from cadmium chloride
EDTA is a complexing agent which slows down the process which helps in uniform deposition of thin film
Instead of Thiourea which is a Sulphur source here, you can use suitable oxide source which gives good quality thin film.
@@gyansampada4587 thank you what about sodium hydroxide as oxide source is it better
@@gyansampada4587 ammonium chloride is also complexing agent why it is used
Mam, Is CdS thin film is toxic? Did u use gloves while preparing?
We have to hold the glass substrate where there is no deposition of CdS.
This avoids any toxins from getting in and also film quality will not be affected by fingerprints.
So with caution you can handle even without gloves.
I recommend not to take in the fumes during the process.
Thank you 🙂
@@gyansampada4587 thank you mam😊
My pleasure 🙂
There are sooo many things wrong with this video. These are very toxic chemicals - cadmium is a heavy metal!!! Lab coat/gloves should be worn. Also this should be done inside a fume hood. PLEASE remove this video as it shows horrible chemistry technique from start to finish. (I have done similar synthesis for years and this is horrifying...you are going to destroy your health one of these times)
We had deposited it just for a small project with very less molarities in well ventilated area with necessary precautions.
However thank you for sharing your suggestion 🙂