scholarly journals Solution-Processed PEDOT:PSS/MoS2 Nanocomposites as Efficient Hole-Transporting Layers for Organic Solar Cells

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1328 ◽  
Author(s):  
Madeshwaran Sekkarapatti Ramasamy ◽  
Ka Yeon Ryu ◽  
Ju Won Lim ◽  
Asia Bibi ◽  
Hannah Kwon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Hybrid Film ◽  
Acid Methyl Ester ◽  
Cost Effective ◽  
Charge Transfer Resistance ◽  
Electrical Impedance Spectroscopy ◽  
Transfer Resistance ◽  
Hole Transporting

An efficient hole-transporting layer (HTL) based on functionalized two-dimensional (2D) MoS2-poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites has been developed for use in organic solar cells (OSCs). Few-layer, oleylamine-functionalized MoS2 (FMoS2) nanosheets were prepared via a simple and cost-effective solution-phase exfoliation method; then, they were blended into PEDOT:PSS, a conducting conjugated polymer, and the resulting hybrid film (PEDOT:PSS/FMoS2) was tested as an HTL for poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) OSCs. The devices using this hybrid film HTL showed power conversion efficiencies up to 3.74%, which is 15.08% higher than that of the reference ones having PEDOT:PSS as HTL. Atomic force microscopy and contact angle measurements confirmed the compatibility of the PEDOT:PSS/FMoS2 surface for active layer deposition on it. The electrical impedance spectroscopy analysis revealed that their use minimized the charge-transfer resistance of the OSCs, consequently improving their performance compared with the reference cells. Thus, the proposed fabrication of such HTLs incorporating 2D nanomaterials could be further expanded as a universal protocol for various high-performance optoelectronic devices.

scholarly journals Polymer Amplification to Improve Performance and Stability Towards Semi-Transparent Perovskite Solar Cells Fabrication

2019 ◽  
Author(s):  
Hafez Nikbakht ◽  
Ahmed Esmail Shalan ◽  
Manuel Salado ◽  
Abbas Assadi ◽  
Parviz Boroojerdian ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Vinylidene Fluoride ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Spectroscopic Properties ◽  
Charge Transfer Resistance ◽  
Large Area ◽  
Transfer Resistance

<p>The performance of methylammonium lead triiodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) based solar cells depends on its crystallization and controlled microstructure. In spite of its high performance, long-term stability is a paramount factor towards its large area fabrication and potential industrialization. Herein, we have employed poly(vinylidene fluoride−trifluoro ethylene) P(VDF-TrFE) as an additive into a low concentration based perovskite precursor solutions to control the crystallinity and microstructure. Perovskite layers of lower thickness can be derived from low precursor concentration, however it often suffers from severe voids and roughness. Introducing judicious quantities of P(VDF-TrFE) can improve the surface coverage, smoothness as well as reduces the grain boundaries in the perovskite. An array of characterization techniques were utilized to probe the structural, microstructural and spectroscopic properties. Impedance spectra suggests, the P(VDF-TrFE) can improve the carrier lifetimes and reduce the charge transfer resistance, which in turn allows to improve photovoltaic performance. For an optimized concentration of P(VDF-TrFE), the fabricated semi-transparent solar cells yielded power conversion efficiency in excess of 10%, which supersede pristine devices along with improved stability. The device architect and the fabrication technique provide an effective route to fabricate cost effective and visible-light-semi-transparent perovskite solar cells.</p>

scholarly journals Polymer Amplification to Improve Performance and Stability Towards Semi-Transparent Perovskite Solar Cells Fabrication

2019 ◽  
Author(s):  
Hafez Nikbakht ◽  
Ahmed Esmail Shalan ◽  
Manuel Salado ◽  
Abbas Assadi ◽  
Parviz Boroojerdian ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Vinylidene Fluoride ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Spectroscopic Properties ◽  
Charge Transfer Resistance ◽  
Large Area ◽  
Transfer Resistance

<p>The performance of methylammonium lead triiodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) based solar cells depends on its crystallization and controlled microstructure. In spite of its high performance, long-term stability is a paramount factor towards its large area fabrication and potential industrialization. Herein, we have employed poly(vinylidene fluoride−trifluoro ethylene) P(VDF-TrFE) as an additive into a low concentration based perovskite precursor solutions to control the crystallinity and microstructure. Perovskite layers of lower thickness can be derived from low precursor concentration, however it often suffers from severe voids and roughness. Introducing judicious quantities of P(VDF-TrFE) can improve the surface coverage, smoothness as well as reduces the grain boundaries in the perovskite. An array of characterization techniques were utilized to probe the structural, microstructural and spectroscopic properties. Impedance spectra suggests, the P(VDF-TrFE) can improve the carrier lifetimes and reduce the charge transfer resistance, which in turn allows to improve photovoltaic performance. For an optimized concentration of P(VDF-TrFE), the fabricated semi-transparent solar cells yielded power conversion efficiency in excess of 10%, which supersede pristine devices along with improved stability. The device architect and the fabrication technique provide an effective route to fabricate cost effective and visible-light-semi-transparent perovskite solar cells.</p>

A recent overview on the porphyrin-based π-extended small molecules as donors and acceptors for high-performance organic solar cells

2021 ◽  
Author(s):  
Venkatesh Piradi ◽  
Feng Yan ◽  
Xunjin Zhu ◽  
Wai-Yeung Raymond Wong
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
High Performance ◽  
Cost Effective ◽  
Effective Alternative ◽  
The Past ◽  
Cost Effective Alternative ◽  
Silicon Based

Organic solar cells (OSCs) have been considered as a promising cost-effective alternative to silicon-based solar cell counterparts due to their lightweight, mechanical flexibility, and easy fabrication features. Over the past...

High performance A–D–A oligothiophene-based organic solar cells employing two-step annealing and solution-processable copper thiocyanate (CuSCN) as an interfacial hole transporting layer

2016 ◽  
Vol 4 (44) ◽  
pp. 17344-17353 ◽  
Author(s):  
Amaresh Mishra ◽  
Tushar Rana ◽  
Annika Looser ◽  
Matthias Stolte ◽  
Frank Würthner ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Solution Processed ◽  
Hole Transporting ◽  
Solution Processable

A–D–A-type small molecular donors with different terminal acceptor groups were developed achieving high PCEs of up to 8.22% in solution-processed organic solar cells.

Aqueous-solution-processable metal oxides for high-performance organic and perovskite solar cells

Nanoscale ◽  
2017 ◽  
Vol 9 (36) ◽  
pp. 13506-13514 ◽  
Author(s):  
Yan-Hui Lou ◽  
Zhao-Kui Wang
Keyword(s):  
Aqueous Solution ◽  
Solar Cells ◽  
Metal Oxides ◽  
Organic Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Photovoltaic Devices ◽  
Hole Transporting ◽  
Solution Processable ◽  
Hole Transporting Material

Poly(3,4-ethylene dioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) is a widely utilized hole-transporting material (HTM) in planar photovoltaic devices, such as organic solar cells (OSCs) and perovskite solar cells (PSCs).

Oxoammonium enabled secondary doping of hole transporting material PEDOT:PSS for high-performance organic solar cells

2020 ◽  
Vol 63 (6) ◽  
pp. 802-809 ◽  
Author(s):  
Haoran Tang ◽  
Zixian Liu ◽  
Zhicheng Hu ◽  
Yuanying Liang ◽  
Fei Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Hole Transporting ◽  
Secondary Doping ◽  
Hole Transporting Material

Aniline-based Hole Transporting Materials for High-Performance Organic Solar Cells with Enhanced Ambient Stability

2021 ◽  
Author(s):  
Tan Ngoc-Lan Phan ◽  
Jinseck Kim ◽  
Geon-U Kim ◽  
Seungjin Lee ◽  
Bumjoon Kim
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Hole Transport ◽  
Interfacial Layers ◽  
Hole Transporting ◽  
Hole Transporting Materials ◽  
Selection Of

The selection of interfacial layers in organic solar cells (OSCs) is crucial for enhancing their power conversion efficiency (PCE) and operational stability. PEDOT:PSS is the most widely used hole transport...

Copolymer-templated nitrogen-enriched nanocarbons as a low charge-transfer resistance and highly stable alternative to platinum cathodes in dye-sensitized solar cells

2015 ◽  
Vol 3 (8) ◽  
pp. 4413-4419 ◽  
Author(s):  
Myung Jong Ju ◽  
In Taek Choi ◽  
Mingjiang Zhong ◽  
Kimin Lim ◽  
Jaejung Ko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Block Copolymers ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
Dye Sensitized ◽  
Low Charge ◽  
Sensitized Solar Cells

High performance N-enriched nanocarbon CEs for organic DSSCs were synthesized by pyrolysis of self-assembled block copolymers.

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