Improving conversion efficiency of co-electrodeposited CuInSe2 thin film solar cells with substrate and solution heating

Electrodeposition Fabrication of Chalcogenide Thin Films for Photovoltaic Applications

“…The CuInSe 2 was fabricated on a Mo-coated glass substrate and was then deposited with a CdS film via chemical bath deposition (CBD) to form a p-n junction. The high efficiency was attributed to heating the electrolyte and substrate to 50 • C and 70 • C, respectively, during the electrodeposition, which led to the CuInSe 2 with a smooth and defect-free surface that resulted in high quality to the interface between the CuInSe 2 and CdS, while the one with the CuInSe 2 produced without heating only received an efficiency of 0.49% [124]. Such a 6.46% efficiency is just slightly lower than the 6.6% efficiency reported by Dale et al with electrodeposited CuInSe 2 that however experienced a further selenization treatment [125].…”

Synthesis and Physical Properties of Solar MaterialCu$lt;inf$gt;1-x$lt;/inf$gt;Li$lt;inf$gt;x$lt;/inf$gt;InSe$lt;inf$gt;2$lt;/inf$gt;

“…Although its optical band gap (1.04 eV) is lower than the optimal gap of ~1.5 eV [1] , the corresponding photovoltaic cells can reach the highest efficiency of 20.3% [2] . CuInSe 2 and its derivatives have been extensively studied recently [3] , however, the previous works were mainly focused on thin films and nanostructures to enhance the photovoltaic behaviors [4][5][6] . On the other hand, the physical properties of the bulk materials are crucial to explore the intrinsic features, and only few studies concentrated on the physical properties of the bulk materials [7] .…”