In the recent decade, the organic-inorganic hybrid and metal halide perovskite materials have shown tremendous property tunability and capacity to harvest solar energy efficiently via conceptually new solar cell architectures....

Understanding the role of inorganic carriers transport layer materials and interfaces in emerging perovskites solar cells

Futuristic kusachiite solar cells of CuBi2O4 absorber and metal sulfide buffer Layers: Theoretical efficiency approaching 28 %

Recently, there is a need to explore the utilization of various heterostructures using the designed nanocomposites and tuning the surfaces of electrodes for improving the electrochemical performance of supercapacitors (SC). In this work, a novel approach is successfully employed through a facile two-step synthetic route with the assistance of a microwave for only 1 min. Depending on the glass transition of a polystyrene (PS) substrate and electrochemical deposition (ECD) of electroactive Ni-Co layered double hydroxides (LDHs), a hierarchically designed flake-like morphology can be readily prepared to enhance the surface-active sites, which allows a rhombohedral Ni-Co LDHs electrode to obtain superior electrochemical properties. Further, the interactions between electrode and electrolyte during the diffusion of ions are highly simplified using multiple enhanced electroactive sites and shorter pathways for electron transfer. The unique surface architecture of the PS substrate and the synergistic effect of the bimetallic components in Ni-Co LDHs enable this substrate to obtain desired electrochemical activity in charge storage systems. The optimized MWC Co0.5Ni0.5 electrode exhibited an areal capacity of 100 µAh/cm2 at a current density of 1 mA/cm2 and a remarkable capacity retention of 91.2% over 5000 continuous charging and discharging cycles due to its remarkable synergistic effect of abundant faradaic redox reaction kinetics. The HSC device is assembled with the combination of optimized MWC Co0.5Ni0.5 and activated carbon as a positive and negative electrode, respectively. Further, the electrochemical test results demonstrated that MWC Co0.5Ni0.5 //AC HSC device showed a high areal capacitance of 531.25 mF/cm2 at a current density of 5 mA/cm2. In addition, the fabricated an aqueous HSC device showed a power density of 16 mW/cm2 at an energy density of 0.058 mWh/cm2, along with the remarkable capacity retention of 82.8% even after 10,000 continuous charging and discharging cycles. Moreover, the assembled hybrid supercapacitor (HSC) device is integrated with a triboelectric nanogenerator (TENG) for the development of energy conversion and storage systems. Not only an extensive survey of materials but also an innovative solution for recent progress can confirm the wide range of potential SC applications. Remarkably, this study is a new way of constructing self-powered energy storage systems in the field of sustainable wearable electronics and future smart sensing systems.

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Microwave-Assisted Hierarchically Grown Flake-like NiCo Layered Double Hydroxide Nanosheets on Transitioned Polystyrene towards Triboelectricity-Driven Self-Charging Hybrid Supercapacitors

Void of lead and non-carcinogenic germanium based RbGeI3 PSC using organic charge transport layers: towards a clean and green future

A facile method for synthesizing MOF derived ZnCo2O4 particles on MXene nanosheets as a novel anode material for high performance hybrid supercapacitors

Theory abide experimental investigations on morphology driven enhancement of electrochemical energy storage performance for manganese titanate perovskites electrodes

Thin film solar cells have gained tremendous interest due to their easy processing and packaging at low costs, but most of them suffer from long-term stability. Therefore, in the quest to find a novel thin film harvester with both high efficiency and long-term stability, the capabilities of cheap and stable copper bismuth oxide or CuBi 2 O 4 (CBO) are comprehensively investigated as an efficient light harvester. Solar Cell Capacitance Simulator-1D (SCAPS-1D) software is used to optimize the performance of CBO-based kusachiite solar cells with various n-type ABO 3 perovskite oxide (PO) buffer layers (such as SrTiO 3 , BaTiO 3 , SrSnO 3, and BaSnO 3 ). The variation in the thickness, doping density, and defect density of the CBO light absorber showed the utmost control over power conversion efficiency (PCE) and other solar cell parameters. The effect of the work function of metal back contact and operating temperature on the performance of solar cells is also analyzed to assess the real-time application of the proposed PO buffer and CBO light harvester based kusachiite solar cells. Among all investigated solar cell device structures, ITO/SrSnO 3 /CBO/Au optimized in terms of thickness and doping density has shown a theoretical PCE of 22.19%. Kusachiite Solar Cells of p-type CuBi 2 O 4 light absorber in combination with n-type perovskite oxide buffer layer achieving reasonable efficiency. The schematics of the modelled Kusachiite solar cells and the corresponding band diagram. • Stable, environmentally benign p-type CuBi 2 O 4 light harvester. • Kusachiite solar cell: A potential thin-film solar cell. • ABO 3 n-type perovskite oxide buffer layer. • Solar cell simulated with the SCAPS-1D software package. 

Prithviraj Palit

Papers

Theory abide experimental investigations on morphology driven enhancement of electrochemical energy storage performance for manganese titanate perovskites electrodes

22% efficient Kusachiite solar cells of CuBi2O4 light harvester and ABO3 buffer layers: A theoretical analysis