Theoretical Investigations of Polymer Based Solar Cells

2004 ◽  
Vol 822 ◽  
Author(s):  
Robert S. Echols ◽  
Chris E. France
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Band Gap ◽  
Polymer Blend ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Normal Incidence ◽  
Open Circuit ◽  
Action Spectra ◽  
Conversion Efficiencies

AbstractWe investigate the behavior of a polymer blend (M3EH-PPV:CN-ether-PPV) bulk heterojunction solar cell using a numeric model that self-consistently solves Poisson's equation and the charge continuity equation while incorporating electric field dependent mobilities. We obtain good quantitative agreement with present experimental data for J-V curves and photocurrent action spectra. To reproduce experimental photocurrent action spectra, our model predicts 36% exciton dissociation efficiencies in the bulk of the polymer. We also study the limiting conditions of polymer solar cell development by simulating an ideal solar cell using an AM1.5 global spectrum and assuming all absorbed photons hitting a M3EH-PPV:CN-ether-PPV polymer blend (band gap ∼2.0 eV) based solar cell at normal incidence contribute to current. If such a solar cell has 100 nm length, open circuit voltage=0.6 V and 50% fill factor, then the maximum theoretical power conversion efficiency is ηp=5.6%. A similar analysis for a M3EH-PPV:PCBM bulk heterojunction cell yields, ηp=3.5%. These results further highlight the need to develop smaller band gap materials and help explain why the best polymer based solar cells have power conversion efficiencies that remain stuck at about 3%. Our model is used to investigate the important increase in power conversion efficiencies we can expect as lower band gap polymers become available.

scholarly journals Synthesis, optoelectronic properties and photovoltaic performances of wide band-gap copolymers based on dibenzosilole and quinoxaline units, rivals to P3HT

2016 ◽  
Vol 7 (25) ◽  
pp. 4160-4175 ◽  
Author(s):  
F. Caffy ◽  
N. Delbosc ◽  
P. Chávez ◽  
P. Lévêque ◽  
J. Faure-Vincent ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Wide Band ◽  
Optoelectronic Properties ◽  
Wide Band Gap ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Conversion Efficiencies

Dibenzosilole and quinoxaline based copolymers were synthesized and tested in bulk-heterojunction solar cells showing power conversion efficiencies up to 5.14%.

Large band-gap copolymers based on a 1,2,5,6-naphthalenediimide unit for polymer solar cells with high open circuit voltages and power conversion efficiencies

2016 ◽  
Vol 4 (19) ◽  
pp. 7372-7381 ◽  
Author(s):  
Zuojia Li ◽  
Kui Feng ◽  
Jiang Liu ◽  
Jun Mei ◽  
Ying Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Open Circuit ◽  
Active Layers ◽  
Photovoltaic Applications ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

Large band-gap copolymers based on 1,2,5,6-naphthalenediimide were developed for photovoltaic applications. A PCE of 6.35% was obtained by gradually optimizing the morphology of active layers.

A wide band gap polymer based on indacenodithieno[3,2-b]thiophene for high-performance bulk heterojunction polymer solar cells

2017 ◽  
Vol 5 (2) ◽  
pp. 712-719 ◽  
Author(s):  
Woosung Lee ◽  
Jae Woong Jung
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Performance ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Wide Band ◽  
Wide Band Gap ◽  
Conversion Efficiencies

A novel wide band gap polymer (PIDTT-TT) has been synthesized to use in efficient polymer solar cells with power conversion efficiencies up to 7.10%.

Conventional polymer solar cells with power conversion efficiencies increased to >9% by a combination of methanol treatment and an anionic conjugated polyelectrolyte interface layer

RSC Advances ◽  
2014 ◽  
Vol 4 (92) ◽  
pp. 50988-50992 ◽  
Author(s):  
Tao Yuan ◽  
Dong Yang ◽  
Xiaoguang Zhu ◽  
Lingyu Zhou ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thin Layer ◽  
Polymer Solar Cell ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Interface Layer ◽  
Conjugated Polyelectrolyte ◽  
Methanol Treatment ◽  
Conversion Efficiencies

The power conversion efficiency of a PTB7:PC71BM polymer solar cell was improved up to 9.1% by a combination of methanol treatment followed by conjugation of a water- or alcohol-soluble polyelectrolyte thin layer.

scholarly journals Development of polymer–fullerene solar cells

2016 ◽  
Vol 3 (2) ◽  
pp. 222-239 ◽  
Author(s):  
Fengling Zhang ◽  
Olle Inganäs ◽  
Yinhua Zhou ◽  
Koen Vandewal
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Free Charge Carrier ◽  
Interfacial Layers ◽  
New Device ◽  
Device Structures ◽  
Photoactive Materials ◽  
Conversion Efficiencies

Abstract Global efforts and synergetic interdisciplinary collaborations on solution-processed bulk-heterojunction polymer solar cells (PSCs or OPVs) made power conversion efficiencies over 10% possible. The rapid progress of the field is credited to the synthesis of a large number of novel polymers with specially tunable optoelectronic properties, a better control over the nano-morphology of photoactive blend layers, the introduction of various effective interfacial layers, new device architectures and a deeper understanding of device physics. We will review the pioneering materials for polymer–fullerene solar cells and trace the progress of concepts driving their development. We discuss the evolution of morphology control, interfacial layers and device structures fully exploring the potential of photoactive materials. In order to guide a further increase in power conversion efficiency of OPV, the current understanding of the process of free charge carrier generation and the origin of the photovoltage is summarized followed by a perspective on how to overcome the limitations for industrializing PSCs.

Investigation of Quantum Dot Solar Cell Device Performance

2013 ◽  
Vol 1551 ◽  
pp. 137-142
Author(s):  
Neil S. Beattie ◽  
Guillaume Zoppi ◽  
Ian Farrer ◽  
Patrick See ◽  
Robert W. Miles ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solar Cell ◽  
Quantum Dot ◽  
Band Gap ◽  
Control Device ◽  
Open Circuit ◽  
Device Performance ◽  
Intermediate Band ◽  
Control Devices

ABSTRACTThe device performance of GaAs p-i-n solar cells containing stacked layers of self-assembled InAs quantum dots is investigated. The solar cells demonstrate enhanced external quantum efficiency below the GaAs band gap relative to a control device without quantum dots. This is attributed to the capture of sub-band gap photons by the quantum dots. Analysis of the current density versus voltage characteristic for the quantum dot solar cell reveals a decrease in the series resistance as the device area is reduce from 0.16 cm2 to 0.01 cm2. This is effect is not observed in control devices and is quantum dot related. Furthermore, low temperature measurements of the open circuit voltage for both quantum dot and control devices provide experimental verification of the conditions required to realise an intermediate band gap solar cell.

Incorporating Semiflexible Linkers into Double-Cable Conjugated Polymers via Click Reaction

2021 ◽  
Author(s):  
Zhaofan Yang ◽  
Shijie Liang ◽  
Baiqiao Liu ◽  
Jing Wang ◽  
Fan Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Organic Solar Cells ◽  
Click Reaction ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Single Component ◽  
Photovoltaic Technology ◽  
Conversion Efficiencies ◽  
Excellent Stability

Single-component organic solar cells (SCOSCs) have been recognized as the promising photovoltaic technology due to the excellent stability, but their power conversion efficiencies (PCEs) are far lagging their bulk-heterojunction counterparts....

scholarly journals Planar D-π-A Configured Dimethoxy Vinylbenzene Based Small Organic Molecule for Solution-Processed Bulk Heterojunction Organic Solar Cells

2020 ◽  
Vol 10 (17) ◽  
pp. 5743
Author(s):  
Shabaz Alam ◽  
M. Shaheer Akhtar ◽  
Abdullah ◽  
Eun-Bi Kim ◽  
Hyung-Shik Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
Organic Molecule ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Solution Processed ◽  
Small Organic Molecule ◽  
Donor Material

A new and effective planar D-π-A configured small organic molecule (SOM) of 2-5-(3,5-dimethoxystyryl)thiophen-2-yl)methylene)-1H-indene-1,3(2H)-dione, abbreviated as DVB-T-ID, was synthesized using 1,3-indanedione acceptor and dimethoxy vinylbenzene donor units, connected through a thiophene π-spacer. The presence of a dimethoxy vinylbenzene unit and π-spacer in DVB-T-ID significantly improved the absorption behavior by displaying maximum absorbance at ~515 nm, and the reasonable band gap was estimated as ~2.06 eV. The electronic properties revealed that DVB-T-ID SOMs exhibited promising HOMO (−5.32 eV) and LUMO (−3.26 eV). The synthesized DVB-T-ID SOM was utilized as donor material for fabricating solution-processed bulk heterojunction organic solar cells (BHJ-OSCs) and showed a reasonable power conversion efficiency (PCE) of ~3.1% with DVB-T-ID:PC61BM (1:2, w/w) active layer. The outcome of this work clearly reflects that synthesized DVB-T-ID based on 1,3-indanedione units is a promising absorber (donor) material for BHJ-OSCs.

scholarly journals Alternative electrodes for HTMs and noble-metal-free perovskite solar cells: 2D MXenes electrodes

RSC Advances ◽  
2019 ◽  
Vol 9 (59) ◽  
pp. 34152-34157 ◽  
Author(s):  
Junmei Cao ◽  
Fanning Meng ◽  
Liguo Gao ◽  
Shuzhang Yang ◽  
Yeling Yan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Noble Metal ◽  
Counter Electrode ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Metal Free ◽  
Conversion Efficiencies

The 2D Mxene material was successfully used as the counter electrode of the perovskite solar cell and achieved power conversion efficiencies of 13.84%.

Ternary organic solar cells: using molecular donor or acceptor third components to increase open circuit voltage

2019 ◽  
Vol 43 (26) ◽  
pp. 10442-10448 ◽  
Author(s):  
Sergey V. Dayneko ◽  
Arthur D. Hendsbee ◽  
Jonathan R. Cann ◽  
Clément Cabanetos ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Molecular Semiconductors ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

The addition of donor or acceptor type molecular semiconductors to PBDB-T:PC60BM based organic photovoltaics leads to increases in open circuit-voltages and overall power conversion efficiencies.

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