I want to research on CdSe/PbSe quantum dot solar cell in general laboratory so I am in need a synthesis process of CdSe quantum dot which can synthesize in in the absence of inert atmosphere and at ambient temperature.
Our group (Prashant Kamat's group) has a wide range of experience with CdSe. If you want to use CdSe then you have two good options. The first is synthesis of colloidal CdSe which requires 300C temp and inert atmosphere, and second is Successive Ionic Layer Adsorption and Reaction (SILAR) which forms the CdSe directly on a mesoporous substrate, such as TiO2. SILAR is generally done at room temp but it also requires inert (N2) atmosphere. You can't make CdSe in the presence of O2 as it will oxidize. Both methods are good for making QDSCs but SILAR provides higher efficiency. Our group has a number of good papers on this listed on the publications page of our website: kamatlab.com
The following papers include a description of aqueous colloidal synthesis of CdSe and CdTe QDs... Kissling, G.P. et al. Phys. Chem. Chem. Phys., 2011,13, 21175-21185 and Kissling, G.P. et al. Phys. Chem. Chem. Phys., 2009, 11, 10080–10086. Hope they help!
Considering your requirements, and despite the possibility of oxidation, one method you can try is to make a simple precipitation of Cd2+ and Se2- (from Na2SeSO3) in a viscous media, for example glycerin or gelatin. We have got very nice nanoparticles controlling viscosity.
Please see these papers
Continuous-Flow Synthesis of CdSe Quantum Dots: A Size-Tunable and Scalable Approach
http://onlinelibrary.wiley.com/doi/10.1002/chem.201301117/abstract
Microwave-assisted synthesis of CdSe quantum dots: can the electromagnetic field influence the formation and quality of the resulting nanocrystals?
http://pubs.rsc.org/en/Content/ArticleLanding/2012/NR/c2nr32441e#!divAbstract
CdSe nanocrystals within quantum size confinement range can be deposited from aqueous solutions by Chemical Bath Deposition.
Source:
Article: Chemical bath deposited CdS/CdSe-sensitized porous TiO2 solar cells
Olivia Niitsoo, Shaibal K. Sarkar, Christophe Pejoux, Sven Rühle, David Cahen, Gary Hodes
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