Synthesis of CuInS2 by chemical route: optical characterization

Guha, P.; Das, Debajyoti; Maity, Arjun; Ganguli, Dibyendu; Chaudhuri, S.

doi:10.1016/s0927-0248(03)00138-7

Cited by 58 publications

(28 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where B is a constant and n is an index indicating the type of the transition. It is known that the value of n for direct band gap semiconductor is 1/2, and for indirect band gap semiconductor is 2 [22]. From extrapolation (ahv) 2 versus (hv), band gap of cobalt ferrite can be estimated at (ahv) 2 = 0, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Preparation of cobalt ferrite micro/nanoparticles by solid-state thermal decomposition of a novel single-source precursor

Hashemi

Mohandes

Salavati‐Niasari

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

It seems that the use of coordination compounds as suitable precursors to synthesize ferrite micro/nanoparticles via solid-state methods has not been well developed. For this purpose, [Co(en) 3 ][Fe(ox) 3 ] complex (where en = ethylenediamine and ox = oxalate) as a novel precursor was used to prepare CoFe 2 O 4 nanoparticles. Solid-state thermal decomposition of the synthesized precursor at different temperatures in the range of 400-800°C led to the formation of CoFe 2 O 4 micro/nanoparticles with various particle sizes. X-ray diffraction patterns showed that pure CoFe 2 O 4 and CoFe 2 O 4 /Co 3 O 4 composite have been formed by thermal decomposition of the precursor at 700 and 800°C, respectively. In addition, it was concluded that by increasing the calcination temperature, particles sizes of the CoFe 2 O 4 nanoparticles increased as expected. According to the optical properties of the products, it was found that CoFe 2 O 4 micro/nanoparticles were semiconductors with electronic band gap of between 2.1 and 3.2 eV.

show abstract

Section: Resultsmentioning

confidence: 99%

Preparation of cobalt ferrite micro/nanoparticles by solid-state thermal decomposition of a novel single-source precursor

Hashemi

Mohandes

Salavati‐Niasari

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…It is known that the value of n for direct band gap semiconductor is 1/2, and for indirect band gap semiconductor is 2 [39]. From extrapolation (ahm) 2 versus (hm) plot to (ahm) 2 = 0 band gap of CIS nps can be calculated.…”

Section: Resultsmentioning

confidence: 99%

Facile Microwave Approach for Synthesis of Copper–Indium Sulfide Nanoparticles and Study of Their Behavior in Solar Cell

et al. 2012

View full text Add to dashboard Cite

CuInS 2 (CIS) nanoparticles (nps) were synthesized via a microwave approach by adding eight sulfur sources with a new copper precursor, [bis(acetylacetonato)copper(II)]; [Cu(acac) 2 ]. The products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, ultraviolet-visible and photoluminescence spectroscopy. Band gap of as-synthesized nps was 2.1 eV that showed about 0.55 eV blue shift in comparison to its bulk type. As observed in other semiconductor systems, the optical absorption blue shift is associated with quantum confinement effects. Thin film of CIS was prepared by doctor's blade technique and solar cell made from indium transparent oxide/CIS/ CdS/Pt layers. I-V characterization was investigated for this cell and fill factor, open-circuit voltage (V oc ) and short-circuit current (I sc ) were achieved.

show abstract

“…[22][23][24] Hence CuInS 2 is an ideal material for use in photovoltaic devices such as solar panels, [24] with the added advantage of posing only a minimal toxicological threat to the environment. [25] CuInS 2 occurs naturally as the rare mineral roquesite in high-temperature hydrothermal veins, usually in the form of inclusions in chalcopyrite (CuFeS 2 ), sphalerite (ZnS) or bornite (Cu 5 FeS 4 ). [26] Synthesis of CuInS 2 has been achieved via a number of methods, including solidstate reaction, [27] solvothermal synthesis, [28] static hydrothermal synthesis, [29] chemical vapour deposition [22,30,31] and spray pyrolysis.…”

Section: Synthesis Of Cuinsmentioning

confidence: 99%

A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

Brugger

McFadden

Lenehan

et al. 2010

Chimia

View full text Add to dashboard Cite

Replacement reactions ('pseudomorphism') commonly occur in Nature under a large range of conditions (T 25 to >600 ˚C; P 1 to >5 kbar). Whilst mineral replacement reactions are often assumed to proceed by solid-state diffusion of the metal ions through the mineral, many actually proceed via a coupled dissolution and reprecipitation (CDR) mechanism. In such cases, a starting mineral is dissolved into a fluid and this dissolution is coupled with the precipitation of a replacement phase across the reaction front. In cases where there are close relationships between the crystal structures of the parent and newly formed minerals, the replacement can be topotactic (interface-coupled dissolution and reprecipitation). The kinetics and chemistry of the CDR route are fundamentally different from solid-state diffusion and can be exploited i) for the synthesis of materials that are often difficult to synthesise via traditional methods and ii) to obtain materials with unique properties. This review highlights recent research into the use of CDR for such synthetic challenges. Emphasis has been given to i) the use of CDR to synthesise compounds with relatively low thermal stability such as the thiospinel mineral violarite ((Ni,Fe) 3 S 4 ), ii) preliminary work into use of CDR for the production of roquesite (CuInS 2 ), a potentially important photovoltaic component and, iii) examples where the textures resulting from CDR reactions are controlled by the nature and texture of the parent phase and the reaction conditions; these being the formation of micro-porous gold and three-dimensional ordered arrays of nanozeolite of uniform size and crystallographic orientation.

show abstract

Synthesis of CuInS2 by chemical route: optical characterization

Cited by 58 publications

References 14 publications

Preparation of cobalt ferrite micro/nanoparticles by solid-state thermal decomposition of a novel single-source precursor

Preparation of cobalt ferrite micro/nanoparticles by solid-state thermal decomposition of a novel single-source precursor

Facile Microwave Approach for Synthesis of Copper–Indium Sulfide Nanoparticles and Study of Their Behavior in Solar Cell

A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

Contact Info

Product

Resources

About