Improved performance of solution processed organic solar cells with an additive layer of sol-gel synthesized ZnO/CuO core/shell nanoparticles

Mahajan, Prerna; Singh, Anoop; Arya, Sandeep

doi:10.1016/j.jallcom.2019.152292

Cited by 68 publications

(28 citation statements)

References 75 publications

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“…These resulting materials obtained from the sol-gel method of synthesis are applied in a number of applications like protective coatings, heterogeneous catalysts, optoelectronic materials and many more. [50][51][52][53] This process offers control over the physico-chemical properties of resulting compounds by careful variation in processing parameters during synthesis. 54 The various parameters that could affect the synthesized material and could be selectively controlled are nature of precursor, type of solvent used, the molar ratio of reactants, pH of the solution, type and concentration of additives used (catalysts, surfactants, capping agent), ageing period, pre and post-heat treatment.…”

Section: Potentials Of the Sol-gel Processmentioning

confidence: 99%

Review—Influence of Processing Parameters to Control Morphology and Optical Properties of Sol-Gel Synthesized ZnO Nanoparticles

Arya

Mahajan

Mahajan³

et al. 2021

ECS J. Solid State Sci. Technol.

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231

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ZnO has several potential applications into its credit. This review article focuses on the influence of processing parameters involved during the synthesis of ZnO nanoparticles by sol-gel method. During the sol-gel synthesis technique, the processing parameters/experimental conditions can affect the properties of the synthesized material. Processing parameters are the operating conditions that are to be kept under consideration during the synthesis process of nanoparticles so that various properties exhibited by the resulting nanoparticles can be tailored according to the desired applications. Effect of parameters like pH of the sol, additives used (like capping agent, surfactant), the effect of annealing temperature and calcination on the morphology and the optical properties of ZnO nanoparticles prepared via sol-gel technique is analyzed in this study. In this study, we tried to brief the experimental investigations done by various researchers to analyze the influence of processing parameters on ZnO nanoparticles. This study will provide a platform to understand and establish a correlation between the experimental conditions and properties of ZnO nanoparticles prepared through sol-gel route which will be helpful in meeting the desired needs in various application areas.

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Section: Potentials Of the Sol-gel Processmentioning

confidence: 99%

Review—Influence of Processing Parameters to Control Morphology and Optical Properties of Sol-Gel Synthesized ZnO Nanoparticles

Arya

Mahajan

Mahajan³

et al. 2021

ECS J. Solid State Sci. Technol.

Self Cite

231

132

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“…Figure 1 (a) shows XRD patterns for both ZCO-H and ZCO-CS particles, respectively. The recorded patterns exhibit all of the major peaks of a monoclinic CuO phase (JCPDS:48-1548) and also a hexagonal wurtzite ZnO phase (JCPDS:36-1451) for both samples (27,28). The variation in peak positions and their corresponding intensities can be attributed to the change of synthesized methods as a hybrid structure and also the core ZnO and CuO shell in the ZnO/CuO.…”

Section: Characterization Of Synthesized Nanoparticlesmentioning

confidence: 91%

“…The ZnO/CuO hybrid and ZnO/CuO core-shell particle (1:1 ratio) samples were synthesized similarly, as based on the literature (27,28). 0.25 M (Zn(CH3COO)2×2H2O) and 0.25 M (Cu(CH3CHOO)2×2H2O) solutions were stirred with the addition of NaOH pellets to prepare the ZnO/CuO hybrid composites.…”

Section: Synthesis Of Zno/cuo Particles Via Two Methodsmentioning

confidence: 99%

Improvement of The CO2 Sensitivity of HPTS Along With ZnO/CuO Nanoparticles: A Comparative Study Between Core-Shell And Hybrid Structures

Oğuzlar

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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Semiconductor metal oxide materials have gained huge attention in gas sensors owing to their high sensitivity to many target gases. Herein, ZnO/CuO core-shell and ZnO/CuO hybrid, which were synthesized by different sol-gel methods and formed in two different crystal structures, were used as an additive material to enhance the response range of 8-hydroxypyrene-1, 3, 6-trisulfonic acid (HPTS) for the sensing of gaseous carbon dioxide. Metal oxide materials were characterized by using XPS, XRD, FTIR, SEM, UV-Vis, and PL spectroscopy. The HPTS dye along with the ZnO/CuO hybrid material displayed a higher CO2 gas sensitivity as 94% ratio (I0/I100=16.90) and Stern-Volmer constant (KSV) value and extended linear response range compared to the HPTS-based sensing thin films along with ZnO/CuO coreshell material and additive-free form. ZnO/CuO core-shell and hybrid structures were used for enhancing of carbon dioxide sensitivity of the HPTS dye.

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“…Understanding how organisms manipulate light may be of great technological value and is receiving increased attention for example to increase energetic yields in solar panels or biofuel production. Finding ways to harvest more light energy may help reduce fossil fuel use by improving the design of photovoltaic cells, where inclusion of a single layer periodic nanostructure increased power conversion by 90% (Hsiao et al, 2011), with efforts ongoing to make further improvements using nanostructures (Cheng et al, 2017;Mahajan, Singh, & Arya, 2020). Where light is limited, bio-inspired light harvesting could increase photosynthesis and hence crop yield, for example using carbon nanoparticles (Swift et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Dynamic structural colour increases photosynthetic performance in the alga Ericaria selaginoides

2021

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Structural colour occurs when nanoscale structures interfere with incident light transmission and reflect particular wavelengths. The brown alga Ericaria selaginoides (Fucales, Phaeophyceae) has an opalescent photonic crystal anatomy that creates the blue colour of this seaweed but which responds to light, leading to speculation that the crystals have a photosynthetic role by modifying light transmission. Here, we characterize the colour response of E. selaginoides using time-lapse photography to capture responses to light treatments of different timing, duration, intensity and spectrum. The amount of light drove the colour response, with the most intense blue found in the dark which reduced rapidly in strong light and was not spectrum dependent. Chlorophyll a fluorometry showed that the maximum quantum efficiency of photosynthesis coincided with strong blue colouration but was reduced over two to three hours of illumination. This supports opalescent photonic crystals having a photosynthetic role by regulating light transmission to chloroplasts. Studies such as this could be used to improve solar cell efficiency and increase crop yield through the use of bio-inspired self-tuning mechanisms to optimize light transmission.

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Improved performance of solution processed organic solar cells with an additive layer of sol-gel synthesized ZnO/CuO core/shell nanoparticles

Cited by 68 publications

References 75 publications

Review—Influence of Processing Parameters to Control Morphology and Optical Properties of Sol-Gel Synthesized ZnO Nanoparticles

Review—Influence of Processing Parameters to Control Morphology and Optical Properties of Sol-Gel Synthesized ZnO Nanoparticles

Improvement of The CO2 Sensitivity of HPTS Along With ZnO/CuO Nanoparticles: A Comparative Study Between Core-Shell And Hybrid Structures

Dynamic structural colour increases photosynthetic performance in the alga Ericaria selaginoides

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