Recent Advances in the Determination of Optimal Active Layer Thickness for Bulk Heterojunction Organic Solar Cells

Koul, Sakshi; Hakim, Najeeb-ud-din

doi:10.1007/s42341-018-0053-5

Cited by 13 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In conventional OSCs, the position of the NSs above the PEDOT:PSS boosts light harvesting within the active layer by an increased concentration of the electromagnetic field surrounding the SiO2@Ag@SiO 2 NSs coupled with plasmon resonance. The improved short circuit current density helped increase the fill factor and was also compared with the short circuit current density in an OSC structure without NSs, which was 9.50935 mA/cm 2 in this work, and was reported as 10.631 mA/cm 2 in [ 38 ]. From the table below, we can note that J sc was increased to 14.0162 mA/cm 2 , which, in turn, helped obtain increased power conversion efficiency of 10.02%.…”

Section: Simulation Analysis Of Proposed Nanostructures In Organic So...mentioning

confidence: 58%

Enhanced Optical Management in Organic Solar Cells by Virtue of Square-Lattice Triple Core-Shell Nanostructures

Gattu Subramanyam,

Krishnaswamy,

Guha

et al. 2023

Micromachines

View full text Add to dashboard Cite

This research focuses on enhancing the optical efficacy of organic photovoltaic cells, specifically their optical absorbance and electrical parameters. The absorbance of photons in organic solar cells (OSCs) was studied by incorporating an optical space layer and triple core-shell square-lattice nanostructures. For better chemical and thermal stability, a dielectric-metal-dielectric nanoparticle can be replaced for embedded metallic nanoparticles in the absorption layer. The 3D (finite-difference time-domain) FDTD method was used to analyze the absorption and field distribution in OSCs using 3D model morphology. Firstly, an optimization of thickness of the optical spacer layer was analyzed and secondly, the impact of adding triple core-shell nanostructures at different levels of an OSC were studied. The photovoltaic properties such as short circuit current density, power conversion efficiency, fill factor, Voc were investigated. The proposed design has demonstrated an improvement of up to 80% in the absorption of light radiation in the photoactive region (donor or acceptor) of OSCs in the wavelength range of 400 nm to 900 nm when compared with that of nanostructures proposed at various layers of OSC.

show abstract

Section: Simulation Analysis Of Proposed Nanostructures In Organic So...mentioning

confidence: 58%

Enhanced Optical Management in Organic Solar Cells by Virtue of Square-Lattice Triple Core-Shell Nanostructures

Gattu Subramanyam,

Krishnaswamy,

Guha

et al. 2023

Micromachines

View full text Add to dashboard Cite

show abstract

“…Efficient solar cells can be obtained by increasing the extent of the incident light absorption in the cell [1]. A tradeoff between the efficiencies of the photon absorption and exciton diffusion occurs in the OSCs with the thickness of active material being the driving force [2]. There is a need for effective light trapping mechanisms to remove the bottlenecks of the low mobility of charge carriers and the active layer thickness restrictions in achieving high efficiency values in OSCs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Non-ideality Factors for a P3HT: PCBM Based Bulk Heterojunction Organic Solar Cell in Presence of Silver Nanoparticles

Koul

Hakim

2020

Trans. Electr. Electron. Mater.

Self Cite

View full text Add to dashboard Cite

Solar cells are a potential option to meet the growing energy requirements of humans. Organic solar cells (OSCs) represent a class of solar cells that is a part of the third generation solar cell technology. The quest for obtaining enhanced OSC efficiencies has led to the incorporation of metallic nanoparticles (NPs) in the OSCs. Metallic NPs increase the incident light absorption instances, thus increasing the obtainable cell efficiencies. Different parameters and factors need to be considered for obtaining the optimum NP specifications. Investigations of the mechanism of light absorption after the introduction of NPs in the OSC are critical. Hence theoretical simulations for such OSCs are important. An overview of the different solar cell characterization techniques is presented in this paper. Simulations are carried out for these characterization techniques to study the behavior of the P3HT:PCBM based OSC in which silver NPs are incorporated in the active layer. The simulations are carried out for the cell structure in the presence of different non-ideality factors. The non-idealities include mobility limitations, presence of traps, recombination losses, low generation, presence of non-ideal values of series and shunt resistances, the effect of doping, etc. The simulated characterization techniques can be utilized for the performance study and parameter extraction of these NP incorporated OSCs.

show abstract

“…self-assembly and self-alignment), DNA is one of the most interesting materials that can serve as excellent scaffolds to align various functional nanomaterials. Consequently, various physical devices and chemical/ biological sensors made of DNA have been constructed and discussed [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Optoelectrical and mechanical properties of multiwall carbon nanotube-integrated DNA thin films

Kesama¹,

Dugasani²,

Jeong³

et al. 2019

Nanotechnology

View full text Add to dashboard Cite

Thin films made of deoxyribonucleic acid (DNA), dissolved in an aqueous solution, and cetyltrimethyl-ammonium-modified DNA (CDNA), dissolved in an organic solvent, utilising multiwall carbon nanotubes (MWCNTs) are not yet well-understood for use in optoelectronic device and sensor applications. In this study, we fabricate MWCNT-integrated DNA and CDNA thin films using the drop-casting method. We also characterise the optical properties (i.e. absorption spectra, Fourier-transform infrared spectra, Raman spectra, photoluminescence, and time-of-flight secondary ion mass spectrometry) to study spectral absorption, interaction, functional group, chirality, and compositional moiety and its distribution of MWCNTs in DNA and CDNA thin films. The electrical property for conductance and the mechanical characterisations of hardness, modulus and elasticity for stability are also discussed. Lastly, to show the feasibility of directional alignment of MWCNTs in DNA thin films, we perform an alignment experiment with MWCNTs in DNA via brushing and shearing methods, and we evaluate the results using polarised optical microscopy. Our simple methodology to align ingredients in DNA and CDNA thin films leveraging various optical, electrical and mechanical properties, provides great potential for the development of efficient devices and sensors.

show abstract

Recent Advances in the Determination of Optimal Active Layer Thickness for Bulk Heterojunction Organic Solar Cells

Cited by 13 publications

References 39 publications

Enhanced Optical Management in Organic Solar Cells by Virtue of Square-Lattice Triple Core-Shell Nanostructures

Enhanced Optical Management in Organic Solar Cells by Virtue of Square-Lattice Triple Core-Shell Nanostructures

Investigation of Non-ideality Factors for a P3HT: PCBM Based Bulk Heterojunction Organic Solar Cell in Presence of Silver Nanoparticles

Optoelectrical and mechanical properties of multiwall carbon nanotube-integrated DNA thin films

Contact Info

Product

Resources

About