Reversible Cu2−xSe↔Cu3Se2 phase transformation in copper selenide thin films prepared by chemical bath deposition

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

doi:10.1016/s0040-6090(00)01783-1

Cited by 69 publications

(47 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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%

“…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%

“…During the last two decades, less expensive methods, like chemical and electrochemical conversion, precipitation, ion displacement, electrodeposition and low temperature dip type for the preparation of copper selenide and their characterization have been reported by several authors [1, 2,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. CBD is a method of growing thin film of certain materials on a substrate immersed in an aqueous bath containing appropriate reagents at temperatures ranging from room temperature to 373K.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

show abstract

“…Quando preparados nas mesmas condições, porém com pH 12 ajustado com NaOH, a composição foi praticamente a mesma (64,2% de Cu e 35,8% de Se em peso). Por- 29 . Estes autores propõem uma metodologia que permite obter tanto umangita como berzelianita controlando o pH da solução.…”

Section: Crescimento Sobre Ourounclassified

“…Cu 2-x Se melhora o rendimento de fotocélulas à base de n-Si quando usado como fresta ("window material"), material usado para absorver a radiação não absorvida por camadas de semicondutores na heterojunção 4 . Cu 1,8 Se é supercondutor iônico 6 e é empregado em importante classe de componentes da microeletrônica, os diodos de Schottky 7 . Zhang et al 8 usaram-no em camadas fotoabsorventes de células solares.…”

Section: Introductionunclassified

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

Rabelo¹,

Arantes²,

Bottecchia³

2007

Quím. Nova

View full text Add to dashboard Cite

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.

show abstract

Thin‐Film Semiconductors Deposited in Nanometric Scales by Electrochemical and Wet Chemical Methods for Photovoltaic Solar Cell Applications

Savadogo

2010

Advances in Electrochemical Sciences and Engineering

View full text Add to dashboard Cite

IntroductionThe world net electricity generation has been estimated to increase 77% from 18 trillion kilowatt hour s ( kWh ) in 2006 to 31.8 trillion kWh in 2030 with a value of 23.2 trillion kWh in 2015 1) . On the other hand, the world market capacity of solar photovoltaic power systems escalated from 1.3 gigawatt s ( GW ) in 2001 to 15.2 GW in 2008 for systems which have been installed. In particular, market installations reached a record high of 5.95 GW in 2008 corresponding to a growth of 110% from 2007. The contribution of solar energy to the world net electricity generation is estimated to be 6% by 2050.The production of photovoltaic ( PV ) modules is still based mainly on crystalline silicon (Si) (94%) while 4% of modules are based on thin -fi lm amorphous Si solar cells and 2% are polycrystalline compound solar cells based on CdTe and CuIn 2 Se [1] . Despite the tremendous progress in all aspects of production of Si -based solar cells and the rapid decrease of production cost for PV modules from $5 per peak watt at the beginning of the 1990s to $2.5 per peak watt in 2009, or $0.7 per kWh, this remains effectively too high. Subsidies from some government policies and/or the carbon dioxide market to increase the utilization of clean energy for sustainable development can contribute to reduce the PV energy cost to $0.25 -0.40 per kWh during the fi rst year of the system installation. This cost is similar to that of classic energy where energy cost is higher than $0.25 -0.30 per kWh. For economic viability of this energy without subsidies, the development of ultralow -cost PV systems is one of the important issues to ensure a smooth transition to sustainable energy development. According to a recent US Department of Energy study in the USA [2] , a major research effort is needed to close the huge gap between the current use of solar energy and its enormous underdeveloped potential. One of the identifi ed thrusts of the 5 Advances in Electrochemical Science and Engineering. Edited

show abstract

Reversible Cu2−xSe↔Cu3Se2 phase transformation in copper selenide thin films prepared by chemical bath deposition

Cited by 69 publications

References 20 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

Thin‐Film Semiconductors Deposited in Nanometric Scales by Electrochemical and Wet Chemical Methods for Photovoltaic Solar Cell Applications

Contact Info

Product

Resources

About