Characterization of CuInS2 thin films prepared by one-step electrodeposition

Abstract

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Characterization and photoelectrochemical properties of CICS thin films grown via an electrodeposition route

“…Aerwards, the sulfured samples were etched by dipping in 0.1 M KCN solution for 1 min to remove the unwanted secondary phases such as CuS from the CIS surface. 19 Aer etching, all the samples were rinsed with DI water and thicknesses are estimated about 1.5 mm by means of weight difference technique supposing the lm to be uniform and dense as bulk. The phase purity and crystal structure for CICS lms were obtained using a diffractometer X'Pert pro PANalytical supplied with a monochromatic CuK a radiation source (l ¼ 1.5406 A) and operated at a potential difference of 50 kV, and a current of 40 mA.…”

Double‐Pulse Electrodeposition of CuGaS2 Photovoltaic Thin Film

“…The electrochemical deposition of the binary compounds CuÀ S and GaÀ S was carried out to support the Figure 1a). The first cathodic peak centered at À 0.7 V, assigned as C1, is attributed to the reduction of Cu(II) to Cu(I), [18] which, consequently, reacts with the product of S 2 O 3 2À reduction forming copper(I) sulfide. [19] The other peak, C2, at À 1.25 V is due to metallic copper deposition.…”

Inexpensive methodology to prepare TiO2/CuInS2hetero-junctions for photovoltaic applications

“…A c c e p t e d M a n u s c r i p t 5 pretreated as described elsewhere 3,26,27 and cut into square pieces (2 x 2 cm 2 ). The active geometrical area was limited to 1.22 cm 2 by the electrochemical cell design.…”

“…CuInS 2 was electrodeposited on top of FTO/TiO /In 2 S 3 substrates following the procedure described in our previous work 3 . Briefly, the electrodeposition of the CIS films was carried out using a standard three-electrode cell; a saturated calomel electrode (SCE) and a Pt mesh of big area were used as reference and counter electrodes respectively.…”

“…It is well-known that various types of chalcopyrites, namely CuInS 2 (CIS), CuInSe 2 (CISe) and Cu(In,Ga)Se 2 (CIGS) are frequently used as absorbers for solar cells due to their excellent optical properties . In particular, CIS has several interesting characteristics including high absorption coefficient (around of 10 5 cm -1 ) at λ ~ nm and direct band gap optical (E g ) value within 1.3-1.5 eV [3][4][5] , which is close to the optimum range for photovoltaic conversion. CuInS 2 is also highly regarded for being environmentally friendly, principally when compared to CuInSe 2 where the high toxicity of Se represents a disadvantage during preparation and disposal of the cells.…”