Abstract
To optimize cost-efficiency relation for thin film solar cells, we explore the recently developed versions of chemical deposition of semiconductor films, together with classic CBD (Chemical Bath Deposition): SILAR (Successive Ionic Layer Adsorption and Reaction) and PCBD (Photo Chemical Bath Deposition), all of them ammonia-free and ecologically friendly. The films of CdS and PbS were made, and experimental solar cells with CdS window layer and PbS absorber elaborated. We found that band gap of PbS films can be monitored by deposition process due to porosity-induced quantum confinement which depends on the parameters of the process. We expect that the techniques employed can be successfully used for production of optoelectronic devices.
Highlights
Introduction and its variations likeSILAR (Successive Ionic Layer Adsorption and Reaction) and PCBD (Photo ChemicalThe most important problem in development of modernBath Deposition), including some preliminary results of solar cells is the production cost which includes the cost studying of solar cells based on these materials.of materials and that of technologies involved as well as the energy consumption at technological processes
In our group an alternative, ammonia-free Chemical Bath Deposition (CBD) process was developed for the growth of high quality chalcogenide thin films [3-5]
We present the results of investigation of CdS and PbS thin films produced by traditional CBD
Summary
Introduction and its variations likeSILAR (Successive Ionic Layer Adsorption and Reaction) and PCBD (Photo ChemicalThe most important problem in development of modernBath Deposition), including some preliminary results of solar cells is the production cost which includes the cost studying of solar cells based on these materials.of materials and that of technologies involved as well as the energy consumption at technological processes. One of the techniques that is traditionally used to prepare thin films of chalcogenide semiconductors for solar cells and photo detectors, like CdS and PbS, is the Chemical Bath Deposition (CBD) [1,2,3] that is simple, cheap and energy efficient. Deposited CdS window layers have been used in the last years in high efficiency CdTe/CdS solar cells.
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