Chemical bath deposition of different phases of copper selenide thin films by controlling bath parameters

Lakshmi, Mohana; Bindu, K; Bini, S.; Vijayakumar, K. P.; Kartha, C. Sudha; Abe, T.; Kashiwaba, Y.

doi:10.1016/s0040-6090(00)00923-8

Cited by 73 publications

(46 citation statements)

References 19 publications

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“…The techniques adopted for deposition of this metal chalcogenide vary from reaction of metallic copper with selenium dissolved in a benzene medium [1] or an aqueous medium [2], flash evaporation [3], vacuum evaporation [4][5][6][7], melting of Cu and Se [8,9], and electrodeposition [10], to the simplest method of chemical bath deposition (CBD) [11][12][13][14][15][16][17][18][19][20][21][22]. Copper selenide exists in widely differing crystallographic structures depending on the method of preparation even at room temperature.…”

Section: Introductionmentioning

confidence: 99%

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Structural, electrical and optical properties of copper selenide thin films deposited by chemical bath deposition technique

Al-Mamun

Islam

Bhuiyan

2005

J Mater Sci: Mater Electron

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A low cost chemical bath deposition (CBD) technique has been used for the preparation of Cu 2-x Se thin films on glass substrates. Structural, electrical and optical properties of these films were investigated. X-ray diffraction (XRD) study of the Cu 2-x Se films annealed at 523K suggests a cubic structure with a lattice constant of 5.697Å. Chemical composition was investigated by X-ray photoelectron spectroscopy (XPS). It reveals that absorbed oxygen in the film decreases remarkably on annealing above 423K. The Cu/Se ratio was observed to be the same in as-deposited and annealed films. Both as-deposited and annealed films show very low resistivity in the range of (0.

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Section: Introductionmentioning

confidence: 99%

“…Chen et al used copper selenide as an absorbing layer and reported a Cu 2-x Se/CdS heterojunction solar cell with an efficiency of 5.38% [7]. Lakshmi et al reported the depth profiling of as-deposited Cu 3 Se 2 film [21,22].…”

Section: Introductionmentioning

confidence: 99%

Structural, electrical and optical properties of copper selenide thin films deposited by chemical bath deposition technique

Al-Mamun

Islam

Bhuiyan

2005

J Mater Sci: Mater Electron

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“…A coloração escura desaparece no prazo de alguns segundos a 1 min, expondo novamente a coloração similar à do cobre metáli-co. Após este tempo de indução, escurece de forma definitiva. Lakshmi et al 5 descrevem o seleneto de cobre por uma coloração marrom avermelhada (Cu 2-x Se) ou verde azulado (Cu 3 Se 2 ), enquanto que Dhanam et al 18 o descrevem como marrom esverdeado. Aqueles autores enfatizam que as condições experimentais de preparação do filme se refletem na cor do filme formado.…”

Section: Resultsunclassified

“…Uma possibilidade para melhorar a condutividade elétrica da superfície é recobrí-la com óxido de estanho. Esta abordagem levou à melhora da aderência de seleneto de cobre sobre o vidro condutor 5 . Tal melhora também ocorreu sobre o titânio.…”

Section: Crescimento Sobre Titâniounclassified

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Obtenção de filmes espessos de seleneto de cobre sobre carbono vítreo, ouro, titânio e cobre

Rabelo¹,

Arantes²,

Bottecchia³

2007

Quím. Nova

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Recebido em 11/10/05; aceito em 31/5/06; publicado na web em 28/11/06 OBTAINING COPPER SELENIDE THICK FILMS ON VITREOUS CARBON, GOLD, TITANIUM AND COPPER. Copper selenide (berzelianite) films were prepared on the title substrates using the chemical bath deposition technique (CBD). Film composition was determined by energy dispersion of x-rays. The kinetics of film growth is parabolic and film adherence limits the film thickness. On titanium, copper selenide forms islands that do not completely cover the surface, unless the substrate is prepared with a tin oxide layer; film composition also depends on the titanium oxide layer. On vitreous carbon, CBD and mechanical immobilization techniques lead to films with similar resistances for the electron transfer across the film/substrate interface. On gold, composition studies revealed that film composition is always the same if the pH is in the range from 8 to 12, in contrast to films prepared by an ion-ion combination route. On copper, a new procedure for obtaining copper selenide films as thick as 5 μm has been developed.

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Preparation and Study of Structural and Optical Properties of Chemical Bath Deposited Copper Indium Diselenide Thin Films

Dhanam¹,

Balasundaraprabhu²,

Jayakumar³

et al. 2002

phys. stat. sol. (a)

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Subject classification: 68.55.Jk; 68.55.Nq; 78.66.Li; S8.12 Copper indium diselenide thin films of different thicknesses were prepared by the chemical bath deposition technique onto well-cleaned glass substrates at room temperature. The thickness of the deposited films has been determined by gravimetry. The structural characterization was carried out by X-ray diffraction and scanning electron microscopic studies. These studies confirm the polycrystalline nature of the films with chalcopyrite structure. The structural parameters such as lattice constants, axial ratio, tetragonal distortion, crystallite size, dislocation density and number of crystallites per unit area have been evaluated. The composition of the various constituents in CuInSe 2 films has been determined by energy dispersive X-ray analysis. The optical properties have been studied in detail in the wavelength range 4000-14500 A and the optical band gap has been found to be direct and allowed.

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Chemical bath deposition of different phases of copper selenide thin films by controlling bath parameters

Cited by 73 publications

References 19 publications

Structural, electrical and optical properties of copper selenide thin films deposited by chemical bath deposition technique

Structural, electrical and optical properties of copper selenide thin films deposited by chemical bath deposition technique

Obtenção de filmes espessos de seleneto de cobre sobre carbono vítreo, ouro, titânio e cobre

Preparation and Study of Structural and Optical Properties of Chemical Bath Deposited Copper Indium Diselenide Thin Films

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