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

Abstract

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.

Compound Copper Chalcogenide Nanocrystals

“…This was the case in the work by Wu et al and the work by Scheunemann et al, who detailed the fabrication and characterization of CIS/ZnO heterojunction solar cells with the architecture ITO/PEDOT:PSS/CIS-NCs/ZnO NCs/Al, using both CIS and ZnO NCs, and reached PCEs up to 0.2% . Yousefi et al reported a less conventional architecture, which involved using a relatively thick and planar CIS nanocrystalline layer (produced from CIS NCs) and a I 3 − /I − electrolyte for hole extraction …”

Simple one-pot sonochemical synthesis of copper sulphide nanoparticles for solar cell applications

“…Microwave method and sonochemical synthesis share an advantage of reduced reaction time. The CuInS 2 and CuS nanoparticles were reported to be synthesized by microwave method (Sabet et al, 2011;Sabet et al, 2012;Sabet et al, 2013;Yousefi et al, 2012a). Apart from CuInS 2 , various solar cell materials have also been synthesized and used microwave method (Yousefi et al, 2012b).…”

Semiconductive Tl2O3 nanoparticles: Facile synthesis in liquid phase, characterization and its applications as photocatalytic substrate and electrochemical sensor

“…There are a few reports on the synthesis of nano-sized Tl2O3 using thermal decomposition [9][10], electrodeposition [11][12] and sonochemical [13] methods. In the past two decades, the use of microwave energy to heat chemical reactions has attracted considerable amount of attention due to its many successful applications in peptide, synthesis polymer chemistry, material science, nanotechnology and biochemical processes [14][15][16][17][18]. There are many advantages in the microwave-assisted approaches: the reaction time is very short, heat transformation is faster than that of reflux process in an oil bath and hydrothermal/solvothermal routes, local overheating can be avoided and the reaction temperature is controllable.…”