scholarly journals An N-type Naphthalene Diimide Ionene Polymer as Cathode Interlayer for Organic Solar Cells

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 454
Author(s):  
Roberto Sorrentino ◽  
Marta Penconi ◽  
Anita Andicsová-Eckstein ◽  
Guido Scavia ◽  
Helena Švajdlenková ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Cationic Polyelectrolyte ◽  
Visible Range ◽  
Device Structure ◽  
Naphthalene Diimide ◽  
The Stability ◽  
Cathode Interlayer

Polymer solar cells (PSCs) based on non-fullerene acceptors have the advantages of synthetic versatility, strong absorption ability, and high thermal stability. These characteristics result in impressive power conversion efficiency values, but to further push both the performance and the stability of PSCs, the insertion of appropriate interlayers in the device structure remains mandatory. Herein, a naphthalene diimide-based cathode interlayer (NDI-OH) is synthesized with a facile three-step reaction and used as a cathode interlayer for fullerene and non-fullerene PSCs. This cationic polyelectrolyte exhibited good solubility in alcohol solvents, transparency in the visible range, self-doping behavior, and good film forming ability. All these characteristics allowed the increase in the devices’ power conversion efficiencies (PCE) both for fullerene and non-fullerene-based PSCs. The successful results make NDI-OH a promising cathode interlayer to apply in PSCs.

scholarly journals High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Device Structure ◽  
Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

Enhanced power-conversion efficiency in polymer solar cells using an inverted device structure

2012 ◽  
Vol 6 (9) ◽  
pp. 591-595 ◽  
Author(s):  
Zhicai He ◽  
Chengmei Zhong ◽  
Shijian Su ◽  
Miao Xu ◽  
Hongbin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Device Structure ◽  
Inverted Device ◽  
Inverted Device Structure

scholarly journals Self-assembled conjugated polyelectrolyte–surfactant complexes as efficient cathode interlayer materials for bulk heterojunction organic solar cells

2015 ◽  
Vol 3 (47) ◽  
pp. 23905-23916 ◽  
Author(s):  
Michèle Chevrier ◽  
Judith E. Houston ◽  
Jurgen Kesters ◽  
Niko Van den Brande ◽  
Ann E. Terry ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Conjugated Polyelectrolyte ◽  
Self Assembled ◽  
Interface Layers ◽  
Conversion Efficiencies ◽  
Cathode Interlayer

Conjugated polyelectrolyte–surfactant cathodic interface layers lead to improved power conversion efficiencies in organic solar cells.

Efficient polymer solar cells based on the synergy effect of a novel non-conjugated small-molecule electrolyte and polar solvent

2016 ◽  
Vol 4 (7) ◽  
pp. 2530-2536 ◽  
Author(s):  
Zhiyang Liu ◽  
Xinhua Ouyang ◽  
Ruixiang Peng ◽  
Yongqi Bai ◽  
Dongbo Mi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Polar Solvent ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Synergy Effect ◽  
Conversion Efficiencies ◽  
Cathode Interlayer

The power conversion efficiencies of polymer solar cells were largely improved by introducing a non-conjugated small-molecule electrolyte as a cathode interlayer.

scholarly journals Ligand-free rutile and anatase TiO2nanocrystals as electron extraction layers for high performance inverted polymer solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20084-20092 ◽  
Author(s):  
Lijie Zhu ◽  
Qipeng Lu ◽  
Longfeng Lv ◽  
Yue Wang ◽  
Yufeng Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Sol Gel ◽  
Ligand Free ◽  
Inverted Polymer Solar Cells ◽  
Electron Extraction

Ligand-free rutile and anatase TiO2nanocrystals were synthesizedviaa hydrolytic sol–gel method. The improved power conversion efficiency was achieved by using anatase TiO2nanocrystals as electron extraction layer in the organic solar cells.

scholarly journals Enhanced Efficiency of PTB7 : PC61BM Organic Solar Cells by Adding a Low Efficient Polymer Donor

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Joana Farinhas ◽  
Ricardo Oliveira ◽  
Quirina Ferreira ◽  
Jorge Morgado ◽  
Ana Charas
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Acid Methyl Ester ◽  
Ternary Blend ◽  
Device Performance ◽  
Blend Morphology ◽  
Acid Methyl ◽  
Blend Polymer

Ternary blend polymer solar cells combining two electron-donor polymers, poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl] (PTB7) and poly[2,5-bis(3-dodecylthiophen-2-yl)thieno[3,2-b]thiophene] (pBTTT) and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM), as electron-acceptor, were fabricated. The power conversion efficiency of the ternary cells was enhanced by 18%, with respect to the reference binary cells, for a blend composition with 25% (wt%) of pBTTT in the polymers content. The optimized device performance was related to the blend morphology, nonrevealing pBTTT aggregates, and improved charge extraction within the device.

Importance of device structure and interlayer design in storage stability of naphthalene diimide-based all-polymer solar cells

2020 ◽  
Vol 8 (7) ◽  
pp. 3735-3745 ◽  
Author(s):  
Changyeon Lee ◽  
Junbok Lee ◽  
Seungjin Lee ◽  
Wonho Lee ◽  
Hoseon You ◽  
...  
Keyword(s):  
Solar Cells ◽  
Storage Stability ◽  
Polymer Solar Cells ◽  
Design Guidelines ◽  
Device Structure ◽  
Naphthalene Diimide

Our work highlights the importance of device structure and interlayer design in the storage stability of NDI-based all-PSCs and suggests design guidelines for efficient and burn-in free all-PSCs.

Cathode interlayer-free organic solar cells with enhanced device performance upon alcohol treatment

2019 ◽  
Vol 7 (26) ◽  
pp. 7947-7952 ◽  
Author(s):  
Xuebin Chen ◽  
Bei Zhu ◽  
Bin Kan ◽  
Ke Gao ◽  
Xiaobin Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Alcohol Treatment ◽  
Device Performance ◽  
Device Structure ◽  
Solvent Treatment ◽  
Cathode Interlayer

Solvent treatment was used to simplify the device structure and enhance the device performance of porphyrin-based small molecule solar cells.

scholarly journals Improving Polymer Based Photovoltaic Devices by Reducing the Voltage Loss at the Donor-Acceptor Interface

2006 ◽  
Vol 974 ◽  
Author(s):  
Date J. D. Moet ◽  
Lenneke H. Slooff ◽  
Jan M. Kroon ◽  
Svetlana S. Chevtchenko ◽  
Joachim Loos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Fullerene Derivative ◽  
Photovoltaic Devices ◽  
Alternating Copolymer ◽  
Voltage Loss ◽  
Donor Acceptor

ABSTRACTThis paper discusses the characterization and optimization of organic solar cells based on a bulk heterojunction consisting of an alternating copolymer, containing a fluorene and a benzathiadiazole unit with two neighboring thiophene rings, and a fullerene derivative (PCBM). The resulting power conversion efficiency amounts 3.9±0.2 % (AM1.5, 100 mW/cm2) and these polymer solar cells are therefore considered auspicious for further research.

scholarly journals Effect of fluorination on n-type conjugated polymers for all-polymer solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17076-17084 ◽  
Author(s):  
Xiangzhi Li ◽  
Xiaoyuan Liu ◽  
Po Sun ◽  
Yaomiao Feng ◽  
Haiquan Shan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Naphthalene Diimide ◽  
Donor Acceptor

Incorporation of a different number of fluorine atoms on the donor portion of naphthalene diimide (NDI) based donor–acceptor conjugated polymers significantly affected the solar cell's power conversion efficiency from 0.67% to 2.50%.

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