Lead Halide Perovskite Quantum Dots To Enhance the Power Conversion Efficiency of Organic Solar Cells

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

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Heterojunction solar cells with improved power conversion efficiency using graphene quantum dots

RSC Advances ◽

10.1039/c6ra20534h ◽

2016 ◽

Vol 6 (112) ◽

pp. 110493-110498 ◽

Cited By ~ 7

Author(s):

Yang Dang ◽

Xinyang Zhang ◽

Xin Chen ◽

Bonan Kang ◽

S. Ravi P. Silva

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Power Conversion Efficiency ◽

Hydrothermal Method ◽

Active Layer ◽

Conversion Efficiency ◽

Organic Solar Cells ◽

Power Conversion ◽

Graphene Quantum Dots ◽

Heterojunction Solar Cells

The effect of incorporating graphene quantum dots (GQDs) synthesized by a hydrothermal method in the active layer of organic solar cells was investigated.

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Origin and Fundamentals of Perovskite Solar Cells

Recent Advances in Nanophotonics - Fundamentals and Applications ◽

10.5772/intechopen.94376 ◽

2020 ◽

Author(s):

Mohd Quasim Khan ◽

Khursheed Ahmad

Keyword(s):

Solar Cells ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Power Conversion ◽

Perovskite Solar Cells ◽

Energy Requirements ◽

Highly Efficient ◽

Perovskite Materials ◽

Halide Perovskite ◽

Lead Halide

In the last few decades, the energy demand has been increased dramatically. Different forms of energy have utilized to fulfill the energy requirements. Solar energy has been proven an effective and highly efficient energy source which has the potential to fulfill the energy requirements in the future. Previously, various kind of solar cells have been developed. In 2013, organic–inorganic metal halide perovskite materials have emerged as a rising star in the field of photovoltaics. The methyl ammonium lead halide perovskite structures were employed as visible light sensitizer for the development of highly efficient perovskite solar cells (PSCs). In 2018, the highest power conversion efficiency of 23.7% was achieved for methyl ammonium lead halide based PSCs. This obtained highest power conversion efficiency makes them superior over other solar cells. The PSCs can be employed for practical uses, if their long term stability improved by utilizing some novel strategies. In this chapter, we have discussed the optoelectronic properties of the perovskite materials, construction of PSCs and recent advances in the electron transport layers for the fabrication of PSCs.

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Black Phosphorus Quantum Dots Based Heterostucture Boosting Electron Extraction for Non-Fullerene Organic Solar Cells Surpassing 15% Power Conversion Efficiency

ACS Applied Energy Materials ◽

10.1021/acsaem.1c00626 ◽

2021 ◽

Author(s):

Xiaofeng Lin ◽

Yuying Wang ◽

Jianyu Wu ◽

Zilun Tang ◽

Wenjing Lin ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Organic Solar Cells ◽

Power Conversion ◽

Black Phosphorus ◽

Black Phosphorus Quantum Dots ◽

Electron Extraction

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First-principles calculation on electronic properties of Bismuth-halide inorganic perovskites for solar cell

Bolgoda Plains ◽

10.31705/bprm.2021.16 ◽

2021 ◽

Vol 01 (01) ◽

pp. 56-57

Author(s):

Galhenage A. Sewvandi ◽

◽

J.T.S.T. Jayawardane ◽

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Photovoltaic Effect ◽

Power Conversion ◽

Thin Film Solar Cells ◽

Halide Perovskite ◽

Lead Halide

Solar energy is a commonly used alternate source of energy and it can be utilized based on the principle of the photovoltaic effect. The photovoltaic effect converts sun energy into electrical energy using photovoltaic devices (solar cells). A solar cell device should have high efficiency and a long lifetime to be commercially beneficial. Presently, silicon and thin-film solar cells are widely employed. The crystalline solar cells are more efficient but they are also expensive. Thin-film solar cells are formed by placing one or more thin layers of photovoltaic materials on different substrates. Although these cells have a lower cost, they are also less efficient compared to Si-based solar cells. Organic-inorganic hybrid lead halide perovskite solar cells are one of the most promising low-cost power conversion efficiency technologies that could exceed the 26% threshold. However, the lack of environmental stability and of high lead toxicity are the main bottlenecks that impede the future industrialization and commercialization hybrid lead halide perovskite. Hence It is important to achieve high power conversion efficiency while also maintaining stability and non-toxicity in the development of new lead-free perovskite materials.

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The Effect of Donor Molecular Structure on Power Conversion Efficiency of Small-Molecule-Based Organic Solar Cells

Mini-Reviews in Organic Chemistry ◽

10.2174/1570193x15666180627145325 ◽

2019 ◽

Vol 16 (3) ◽

pp. 236-243 ◽

Cited By ~ 1

Author(s):

Hui Zhang ◽

Yibing Ma ◽

Youyi Sun ◽

Jialei Liu ◽

Yaqing Liu ◽

...

Keyword(s):

Molecular Structure ◽

Solar Cells ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Small Molecule ◽

Organic Solar Cells ◽

Molecular Design ◽

Power Conversion ◽

The Relationship

In this review, small-molecule donors for application in organic solar cells reported in the last three years are highlighted. Especially, the effect of donor molecular structure on power conversion efficiency of organic solar cells is reported in detail. Furthermore, the mechanism is proposed and discussed for explaining the relationship between structure and power conversion efficiency. These results and discussions draw some rules for rational donor molecular design, which is very important for further improving the power conversion efficiency of organic solar cells based on the small-molecule donor.

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

Nature Communications ◽

10.1038/s41467-020-20431-6 ◽

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.

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Digital printing of a novel electrode for stable flexible organic solar cells with a power conversion efficiency of 8.5%

Scientific Reports ◽

10.1038/s41598-021-93365-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

S. Wageh ◽

Mahfoudh Raïssi ◽

Thomas Berthelot ◽

Matthieu Laurent ◽

Didier Rousseau ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Organic Solar Cells ◽

Power Conversion ◽

Transport Layer ◽

Electron Transport Layer ◽

Solution Processed ◽

Transparent Conducting

AbstractPoly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) mixed with single-wall nanotubes (SWNTs) (10:1) and doped with (0.1 M) perchloric acid (HClO4) in a solution-processed film, working as an excellent thin transparent conducting film (TCF) in organic solar cells, was investigated. This new electrode structure can be an outstanding substitute for conventional indium tin oxide (ITO) for applications in flexible solar cells due to the potential of attaining high transparency with enhanced conductivity, good flexibility, and good durability via a low-cost process over a large area. In addition, solution-processed vanadium oxide (VOx) doped with a small amount of PEDOT-PSS(PH1000) can be applied as a hole transport layer (HTL) for achieving high efficiency and stability. From these viewpoints, we investigate the benefit of using printed SWNTs-PEDOT-PSS doped with HClO4 as a transparent conducting electrode in a flexible organic solar cell. Additionally, we applied a VOx-PEDOT-PSS thin film as a hole transporting layer and a blend of PTB7 (polythieno[3,4-b] thiophene/benzodithiophene): PC71BM (phenyl-C71-butyric acid methyl ester) as an active layer in devices. Zinc oxide (ZnO) nanoparticles were applied as an electron transport layer and Ag was used as the top electrode. The proposed solar cell structure showed an enhancement in short-circuit current, power conversion efficiency, and stability relative to a conventional cell based on ITO. This result suggests a great carrier injection throughout the interfacial layer, high conductivity and transparency, as well as firm adherence for the new electrode.

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