Structural Templating of an Organic Solar Cell Absorber by Ellagic Acid To Tune Its Aggregation, Molecular Orientation, and Optical Properties

2021 ◽  
Author(s):  
Eva Bittrich ◽  
Jari Domke ◽  
Marieta Levichkova ◽  
Dieter Jehnichen ◽  
Lars Bittrich ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cell ◽  
Ellagic Acid ◽  
Molecular Orientation ◽  
Organic Solar Cell

Influence of metal phthalocyanine molecular orientation on charge separation at organic donor/acceptor interface

2021 ◽  
Author(s):  
Heeseon Lim ◽  
Sena Yang ◽  
Sang-Hoon Lee ◽  
Jung-Yong Lee ◽  
Yeunhee Lee ◽  
...  
Keyword(s):  
Solar Cell ◽  
Charge Separation ◽  
Molecular Orientation ◽  
Organic Solar Cell ◽  
Metal Phthalocyanine ◽  
Dipole Orientation ◽  
Highly Efficient ◽  
Donor Acceptor

To achieve a highly efficient organic solar cell (OPVs), control of molecular orientation is one of prime important factors, for interfacial dipole orientation and energy offset at donor/acceptor (D/A) interface...

scholarly journals Reduced Graphene Oxide/Polyvinyl Alcohol Nanofibers Fabricated by Electrospinning Technique as An Ideal Candidate for Organic Solar Cell Devices

2021 ◽  
Vol 6 (1) ◽  
pp. 10-18
Author(s):  
Asriani Asriani ◽  
◽  
Iman Santoso ◽  
Keyword(s):  
Dielectric Constant ◽  
Refractive Index ◽  
Optical Properties ◽  
Solar Cell ◽  
Ftir Spectroscopy ◽  
Organic Solar Cell ◽  
Chemical Reduction ◽  
Complex Refractive Index ◽  
Complex Dielectric Constant ◽  
Electrospinning Technique

Functionalization of rGO that previously obtained by chemical reduction using hydrazine hydrate, has been done by changing its morphology into nanofiber with electrospinning technique and using PVA as a polymer matrix. The rGO nanofibers that had been formed were then characterized using Fourier Transformation-Infra Red (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), and UV-Vis Spectrophotometer. FTIR spectroscopy confirmed the presence of C – C group and C = O group in nanofibers. SEM showed the change of nanofibers morphology which is marked by the increasing of fibres diameter and the hollow fibres become brighter. Furthermore, the effect of rGO concentration to nanofiber optical properties was confirmed by UV-Vis spectrophotometer. According to this characterization, the absorbance of rGO/PVA nanofiber is decreased due to increased rGO concentration. The detail of optical properties of rGO is studied through complex refractive index and dielectric constant in which Kramers-Kronig transformation is then employed to calculate complex refractive index and complex dielectric constant. From the data, the optical properties of rGO/PVA nanofibers indicating that rGO/PVA nanofibers can be applied as transparent electrode an organic solar cell devices.

Boron-Nitrogen Doped Dihydroindeno[1,2-b]fluorene Derivatives as Acceptors in Organic Solar Cells

2019 ◽  
Author(s):  
Matthew Morgan ◽  
Maryam Nazari ◽  
Thomas Pickl ◽  
J. Mikko Rautiainen ◽  
Heikki M. Tuononen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Broad Absorption ◽  
Nitrogen Doped ◽  
Large Depth ◽  
End Products ◽  
Boron Nitrogen ◽  
The Way

The electrophilic borylation of 2,5-diarylpyrazines results in the formation of boron-nitrogen doped dihydroindeno[1,2-<i>b</i>]fluorene which can be synthesized via mildly air-sensitive techniques and the end products handled readily under atmosphereic conditions. Through transmetallation via diarylzinc reagents a series of derivatives were sythesized which show broad absorption profiles that highlight the versatility of this backbone to be used in organic solar cell devices. These compounds can be synthesized in large yields, in alow number of steps and functionalized at many stages along the way providing a large depth of possibilities. Exploratory device paramaters were studied and show PCE of 2%.

Performance Analysis of Different Structures of Organic Solar Cell

2017 ◽  
Vol 7 (2) ◽  
pp. 37
Author(s):  
Dhuriya Deepti ◽  
Kumar Brijesh ◽  
Chauhan R.K. ◽  
◽  
◽  
...  
Keyword(s):  
Solar Cell ◽  
Performance Analysis ◽  
Organic Solar Cell

Optical Absorption Enhancement in Polymer BHJ thin Film Using Ag Nanostructures: A Simulation Study

2020 ◽  
Vol 16 (4) ◽  
pp. 556-567
Author(s):  
Asma Khalil ◽  
Zubair Ahmad ◽  
Farid Touati ◽  
Mohamed Masmoudi
Keyword(s):  
Absorption Spectrum ◽  
Solar Cell ◽  
Methyl Ester ◽  
Butyric Acid ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Acid Methyl Ester ◽  
Short Circuit Current ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester

Background: The photo-absorption and light trapping through the different layers of the organic solar cell structures are a growing concern now-a-days as it affects dramatically the overall efficiency of the cells. In fact, selecting the right material combination is a key factor in increasing the efficiency in the layers. In addition to good absorption properties, insertion of nanostructures has been proved in recent researches to affect significantly the light trapping inside the organic solar cell. All these factors are determined to expand the absorption spectrum and tailor it to a wider spectrum. Objective: The purpose of this investigation is to explore the consequence of the incorporation of the Ag nanostructures, with different sizes and structures, on the photo absorption of the organic BHJ thin films. Methods: Through a three-dimensional Maxwell solver software, Lumerical FDTD, a simulation and comparison of the optical absorption of the three famous organic materials blends poly(3- hexylthiophene): phenyl C71 butyric acid methyl ester (P3HT:PCBM), poly[N-9″-heptadecanyl-2,7- carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)]: phenyl C71 butyric acid methyl ester (PCDTBT:PCBM) and poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt- 4,7-(2,1,3-benzothiadiazole)]: phenyl C71 butyric acid methyl ester (PCDPDTBT:PCBM) has been conducted. Furthermore, FDTD simulation study of the incorporation of nanoparticles structures with different sizes, in different locations and concentrations through a bulk heterojunction organic solar cell structure has also been performed. Results: It has been demonstrated that embedding nanostructures in different locations of the cell, specifically in the active layer and the hole transporting layer had a considerable effect of widening the absorption spectrum and increasing the short circuit current. The effect of incorporation the nanostructures in the active layer has been proved to be greater than in the HTL. Furthermore, the comparison results showed that, PCDTBT:PCBM is no more advantageous over P3HT:PCBM and PCPDTBT:PCBM, and P3HT:PCBM took the lead and showed better performance in terms of absorption spectrum and short circuit current value. Conclusion: This work revealed the significant effect of size, location and concentration of the Ag nanostructures while incorporated in the organic solar cell. In fact, embedding nanostructures in the solar cell widen the absorption spectrum and increases the short circuit current, this result has been proven to be significant only when the nanostructures are inserted in the active layer following specific dimensions and structures.

Influence of morphological tuned nanostructure hybrid layers on efficient bulk heterojunction organic solar cell and X-ray detector performances

2021 ◽  
Vol 543 ◽  
pp. 148863
Author(s):  
Dhanasekaran Vikraman ◽  
Hailiang Liu ◽  
Sajjad Hussain ◽  
K. Karuppasamy ◽  
Hae-Kyung Youi ◽  
...  
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell ◽  
Bulk Heterojunction ◽  
X Ray ◽  
Hybrid Layers

Non‐Halogenated‐Solvent Processed and Additive‐Free Tandem Organic Solar Cell with Efficiency Reaching 16.67%

2021 ◽  
pp. 2102361
Author(s):  
Shucheng Qin ◽  
Zhenrong Jia ◽  
Lei Meng ◽  
Can Zhu ◽  
Wenbin Lai ◽  
...  
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell
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