scholarly journals The importance of Mie resonances in ultra-black dragonfish skin pigment particles

2021 ◽  
Vol 23 (7) ◽  
Author(s):  
Ishaan Lohia ◽  
Samuel Ahearn ◽  
Joseph Franjieh ◽  
Marcel Di Vece

AbstractThe ultra-black skin of the deep-sea dragonfish consists of small pigment particles which together provide optimal light absorption to prevent detection from bioluminescent predators or prey. The mechanism of light absorption in these pigment particles resembles the nanophotonic approaches to increase solar cell efficiency via Mie scattering and resonances. In this work, the Mie resonance responses of dragonfish pigment particles were investigated with finite-difference time-domain (FDTD) simulations to elucidate the exact mechanism responsible for the ultra-black skin of the dragonfish. Ellipsoidal pigment particles were found to have superior light absorption over spherical pigment particles. The pigment particles were also shown to exhibit forward scattering, demonstrating an important feature for repeated light absorption in pigment-containing skin layers. Although this work contributes to a deeper understanding of the ultra-back skin of the dragonfish, the nanophotonic mechanisms proposed here are likely more general, and could be applied to photovoltaic light management designs and immunometric detection based on light extinction.

2013 ◽  
Vol 10 (1) ◽  
pp. 21-24 ◽  
Author(s):  
Tobias Knüttel ◽  
Stefan Bergfeld

2020 ◽  
Vol 8 (5) ◽  
pp. 4410-4419

The objective of this paper is to read the various substrates which are mounted on Gold plasmonic nanoparticle and how they enhance the efficiency of a solar cell. With the help of MIE scattering software, we found the different type of light inclusion and light scattering by Gold nanoparticles mounted on various substrates of a solar cell. The second objective of this paper is to learn the outcome of nanoparticle dimension and standard deviation on light scattering and absorption. The process of this work can be shortened as follows: The literature review on surface plasmons and how effects solar cell efficiency is done. The software MIEPLOTV4305 and how it is used for the research work were studied. Scrutiny of gold samples with different mediums and comparing the variations in peak wavelength using MIE PLOT software and graphs were placed. The outcome of particle dimension and standard deviation on CSCATTERING, CABSORPTION, QSCATTERING, and QABSORPTION were done.


2020 ◽  
pp. 114-119

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.


Author(s):  
Martin A. Green ◽  
Ewan D. Dunlop ◽  
Jochen Hohl‐Ebinger ◽  
Masahiro Yoshita ◽  
Nikos Kopidakis ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1684
Author(s):  
Alessandro Romeo ◽  
Elisa Artegiani

CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an open circuit voltage of 1 V and a short circuit current density exceeding 30 mA/cm2. CdTe solar cells were introduced at the beginning of the 70s and they have been studied and implemented particularly in the last 30 years. The strong improvement in efficiency in the last 5 years was obtained by a new redesign of the CdTe solar cell device reaching a single solar cell efficiency of 22.1% and a module efficiency of 19%. In this paper we describe the fabrication process following the history of the solar cell as it was developed in the early years up to the latest development and changes. Moreover the paper also presents future possible alternative absorbers and discusses the only apparently controversial environmental impacts of this fantastic technology.


Author(s):  
Garner H. Fleming ◽  
Bennett T. Smith ◽  
Matthew G. Dickman ◽  
J. Shawn Addington ◽  
David L. Livingston

Sign in / Sign up

Export Citation Format

Share Document