Layers of CdTe and CdS obtained by PLD on ITO substrates

Optical absorption and reflectivity spectra of highly chromium doped CdTe alloy and layer

“…Furthermore, our SEM studies of the fractured face of the CdTe:Cr show a large-grain polycrystalline structure of the sample [12]. It is known from diffraction measurements, that our PLD of the CdTe layers results in a polycrystalline mode of growth consisting of regular isolated crystallites of 0.5 µm size, almost the same for all of them [15]. Note that our other work [11] shows (by the X-ray diffraction method) that, for a concentration of chromium below 5%, the CdTe:Cr easily crystallize in the zinc-blende structure of the CdTe crystal, without the inclusion of CrTe phases (Cr 7 Te 8 , Cr 3 Te 4 , Cr 5 Te 6 , etc.)…”

Optical Absorption Enhancement in CdTe Thin Films by Microstructuration of the Silicon Substrate

“…Therefore, it is possible to employ CdTe thin films to produce efficient solar cells with reduced recombination losses and improved short-circuit current density. A further benefit of thin films is that they can be synthesized by several physical and chemical methods, such as chemical bath deposition [ 10 ], spray pyrolysis [ 11 ], thermal evaporation [ 12 ], electrodeposition [ 13 , 14 ], sputtering [ 15 ], and pulsed laser ablation (PLD) [ 16 , 17 , 18 ]. The latter allows the in situ fabrication of solar cells with a precise control of the film width of about 0.2 nm, and can be scaled up for commercialization.…”

Correlation of microscopic grain evolution in post‐CdCl 2 annealing and performance of CdS/CdTe thin‐film solar cells fabricated using pulsed laser deposition

“…In addition, most previously reported CdTe/CdS solar cells employ ex situ processes for fabrication of the CdS window and CdTe absorber layers separately using different approaches , which are prone to the risk of the CdS/CdTe interface contamination and not suitable to thin‐film (thickness around 1 μm) CdS/CdTe solar cells. These have motivated researches in exploring alternative approaches for in situ fabrication of thin‐film CdS/CdTe solar cells and considerable progress has been made in application of magnetron sputtering and pulsed laser deposition (PLD) for this purpose . As a highly versatile tool for thin‐film and multilayer fabrication, PLD is particularly interesting since CdS/CdTe bilayers and multilayers of CdS and CdTe with other relevant materials, such as ZnS, ZnTe, CdSe, etc., may be obtained in situ for optimal device structures .…”

“…These have motivated researches in exploring alternative approaches for in situ fabrication of thin‐film CdS/CdTe solar cells and considerable progress has been made in application of magnetron sputtering and pulsed laser deposition (PLD) for this purpose . As a highly versatile tool for thin‐film and multilayer fabrication, PLD is particularly interesting since CdS/CdTe bilayers and multilayers of CdS and CdTe with other relevant materials, such as ZnS, ZnTe, CdSe, etc., may be obtained in situ for optimal device structures .…”