Ganesh Regmi

Center for Research and Advanced Studies of the National Polytechnic Institute | Cinvestav · Departamento de Ingeniería Eléctrica

Nanocomposite coatings have garnered considerable attention as a versatile and innovative solution for addressing the challenges faced by solar cell technologies. This review article provides a comprehensive overview of the multifunctional advantages that nanocomposite coatings offer in the realm of solar cell technology. Furthermore, it delves int...

This study aimed to fabricate copper indium gallium diselenide (CIGSe) thin films using a novel two-step approach. Firstly, we deposited metallic precursors (Cu/In/Ga) onto a Mo-coated stainless steel substrate using thermal evaporation at unintentional substrate temperature. Subsequently, selenization was carried out in a furnace under the presenc...

A new class of engineered trimetallic oxide nanocomposite coating based on ZrO2, ZnO, and TiO2 (ZZTO) was deposited by radio frequency (RF) sputtering. The prepared ZZTO sputtered coating was characterized by different techniques and finally applied to the CISe thin film solar cells as the antireflective (AR) coating to achieve multifunctional bene...

Epoxy-trimetallic oxide (epoxy-TMO) coatings of ZrO2:TiO2:ZnO at different compositions were synthesized and used to protect a stainless steel surface. The different TMO compositions were synthesized using the ball-milling method and later dispersed on the polymer matrix. The different characterizations performed on these coatings showed that the e...

The current scenario witnessed a boom in the application of composite materials in comparison to their bulk counterpart. Metal oxide composite structures find various applications in multidisciplinary due to their versatile features. Significant attention from the scientific society has been focused on multifunctional mixed metal oxide (MMO) materi...

In the present work, modified stacking of sequentially evaporated metallic precursors and two-step selenization was performed to examine the photovoltaic quality of the copper indium diselenide (CISe) thin films. The photovoltaic device performance as a function of selenization temperatures was investigated. Structural analysis showed that the chal...

Highly resistive intrinsic zinc oxide (i-ZnO) thin films were deposited via radio frequency (RF) magnetron sputtering with varying the target power (80 W–140 W) at constant sputtering gas pressure (10 mTorr), and the structural, morphological, and optical properties were investigated. The i-ZnO thin film crystallized in Wurtzite hexagonal with a pr...

Engineering metal oxides to achieve highly desirable properties can allow for multifunctionality and simultaneously enable antibacterial, anticorrosion, antireflection, and self-cleaning (A³S) potentials on a single surface. This study elucidates the improvements on the properties of ultrathin coating deposited using RF sputtering from optimized me...

The objective of this work is to investigate the formation, relative concentrations, and chemical states of bi/tri-metallic oxides within the sintered layers of three naturally non-combinable oxides, namely ZnO, ZrO2 and TiO2. The novelty of this effort is in utilizing a single-step laser-based approach to chemically combine these three oxide powde...

Photovoltaics (PV) is believed to be an empowering technology due to its tremendous momentum for harnessing and to execute the energy revolution’s motto. The immense increase in PV can be assessed from the fact that PV panels with a total electricity generation capacity of 627 GW have been installed by the end of 2019. Multi-criteria attempts have...

Cadmium sulfide (CdS) buffer layer that decouples the absorber layer and window layer in thin-film solar cells was synthesized by two different chemical bath deposition (CBD) techniques with varying deposition parameters. X-ray diffraction (XRD) revealed that the CdS thin film crystallizes in a stable hexagonal wurtzite structure having a preferent...

Solar photovoltaic (PV) is empowering, reliable, and ecofriendly technology for harvesting energy which can be assessed from the fact that PV panels with total electricity generation capacity of 505 GW have been installed by the end of 2018. Thin-film solar cells based on copper indium gallium selenide (CIGSe) are promising photovoltaic absorber ma...

An enhancing awareness about the hazardous gaseous environment in the domestic and industrial sectors is on the rise across the globe. Thus, the necessity to efficiently detect and monitor the potentially hazardous gases, mainly that are toxic and flammable, is widely being researched. Propane, a liquefied petroleum gas (LPG), is highly inflammable...

The photovoltaic technology has remained one of the favored green technologies to meet the today’s energy production demand with the solar cell offering a means of tapping into this source of energy. In this study, the 3-stage hybrid (3SH) method was employed consisting of spray pyrolysis and thermal evaporation to deposit the quaternary copper ind...