I need to prepare a perovskite solar cell using low cost method which are not very complicated and need assistance in this area
As you are talking about cost-effective methods, I think the best way is to go with solution-processing.
That being said, for small-scale, spin-coating and dip-coating are two ways - you will find lots of publications on these two techniques being used to fabricate perovskite thin films.
On the other hand, for large-scale, you can consider spray-coating, ink-jet printing, or doctor blade technique.
Thanks to everybody for the generous suggestions am so grateful!!!
for the recently so popular organic/inorganic metal-halide perovskites (CH3NH3PbI3 and such...) spin coating from solution (DMF, DMSO) and subsequent thermal annealing is the easiest (and probably cheapest method) I am currently aware of. What kind of material are you considering?
@Christopher Wolf, am considering CH3NH3PbBr and CH3NH3Pbl and such, though I don't like using DMF, thats one solvent I keep under parafilm wrap!!!!!!!!!!
Both materials are well dissolved in DMSO or DMF (if you want to deposit them in one step). In my experience film quality is better when you prepare the solution with a non stoichiometric ration in favor of the organic component (e. g. MAI), it was reported that ratios 2:1 are suitable. Spin coating is straight forward but good crystallization is not always so easy, if you want more details let me know or read the torrent of papers that are currently being published!
@Christopher Wolf, please send me any literature materials you may wish to share, my email is [email protected], I will appreciate very much and thanks alot for your kind contribution
I start with MACl and PbI2 and dissolve in DMF rather than conventional MAI and PbCl2 expensive approach to synthesize mixed halide perovskite MAPbICl. I nebulize the precursors and spray under a low-pressure. Grown films are highly oriented and highly crystalline (tetragonal) and absorption is very high (bandgap ~ 1.57 eV). MACl and PbI2 are very cheap materials and my approach is simple and a single-step process.
Chaminda, this suggestion looks very nice and simple, will put it in the list of the procedures to try
The paper is submitted. I'll send you the paper as soon as get published.
- Badges
- Science topic