Perovskite Based Hybrid Solar Cells with Transparent Carbon Nanotube electrodes

2014 ◽  
Vol 1667 ◽  
Author(s):  
Kamil Mielczarek ◽  
Anvar A. Zakhidov
Keyword(s):  
Solid State ◽  
Power Conversion ◽  
Hole Transport ◽  
Hybrid Solar Cells ◽  
Hole Transport Layers ◽  
Efficient Charge ◽  
A Charge ◽  
Conversion Efficiencies ◽  
Made In

ABSTRACTRecently, major advances have been made in electrolytic and solid state DSSCs through the use of perovskite nanocrystals as a sensitizing agent where power conversion efficiencies of over 12% have been realized [1–3]. Moreover the planar DSSC/PV devices with perovskites used as photoactive absorbers sandwiched between selective electron and hole transport layers have demonstrated record performances. Additionally, the uses of carbon nanotubes (CNTs) as a flexible, transparent, lightweight and robust electrode material have been demonstrated in both DSSC as well as OPV devices. The application of CNTs as a charge collector with perovskite sensitized solid state planar PV and DSSCs is discussed. Performance characteristics of CNTs within perovskite based hybrid OPVs are investigated and the role of CNTs as an efficient charge collector is extended to the inverted geometry.

Wavelength-dependent optical transition mechanisms for light-harvesting of perovskite MAPbI3 solar cells using first-principles calculations

2016 ◽  
Vol 4 (23) ◽  
pp. 5248-5254 ◽  
Author(s):  
Hsin-An Chen ◽  
Ming-Hsien Lee ◽  
Chun-Wei Chen
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
High Power ◽  
First Principles ◽  
Light Harvesting ◽  
Optical Transition ◽  
Power Conversion ◽  
First Principles Calculations ◽  
Inorganic Perovskite ◽  
Conversion Efficiencies

The recently emerging class of solid-state hybrid organic–inorganic perovskite-based solar cells has demonstrated remarkably high power conversion efficiencies of up to ∼20%.

Efficient charge transfer and utilization of near-infrared solar spectrum by ytterbium and thulium codoped gadolinium molybdate (Gd2(MoO4)3:Yb/Tm) nanophosphor in hybrid solar cells

2016 ◽  
Vol 18 (44) ◽  
pp. 30837-30844
Author(s):  
Weifu Sun ◽  
Zihan Chen ◽  
Qin Zhang ◽  
Junli Zhou ◽  
Feng Li ◽  
...  
Keyword(s):  
Solar Cell ◽  
Near Infrared ◽  
Power Conversion ◽  
Solar Spectrum ◽  
The Novel ◽  
Hybrid Solar Cells ◽  
Higher Power ◽  
Efficient Charge ◽  
Gadolinium Molybdate ◽  
Novel Design

The novel design of incorporation of Gd2(MoO4)3 into TiO2 film leads to the enhanced charge transport and higher power conversion efficiency of hybrid solar cell.

A perylene bisimide derivative with a LUMO level of −4.56 eV for non-fullerene solar cells

2016 ◽  
Vol 4 (19) ◽  
pp. 4134-4137 ◽  
Author(s):  
Yaping Yu ◽  
Fan Yang ◽  
Yunjing Ji ◽  
Yonggang Wu ◽  
Andong Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Power Conversion ◽  
Perylene Bisimide ◽  
Efficient Charge ◽  
Lumo Level ◽  
Conversion Efficiencies

Conjugated polymers with LUMO levels of −4.00 eV combined with a newly designed perylene bisimide compound with a LUMO level of −4.56 eV were found to have efficient charge transfer and provide power conversion efficiencies up to 1.4% in solar cells.

scholarly journals 23% power conversion efficiency light-emitting diodes using monolayer quantum dots

2021 ◽  
Author(s):  
Fengjia Fan ◽  
Yan Gao ◽  
Xiaonan Liu ◽  
Bo Li ◽  
Huaibin Shen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Bias Voltage ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Power Conversion ◽  
Hole Transport ◽  
Light Emitting ◽  
Large Size ◽  
Recombination Current ◽  
Conversion Efficiencies

Abstract Ever since the first proposal of using colloidal quantum dots (QDs) as the active emitting layer of light-emitting diode (LED), a monolayer of QD is considered as a better option than the multilayer ones. Owing to the slow charge transport rate among different QD layers, quantum dot light-emitting diodes (QLEDs) adopting multilayer QDs need to be driven at higher than the bandgap bias voltage to achieve practically useful brightness, resulting in increased power consumptions and heat generations, and reduced device lifetimes. Unfortunately, QLEDs using monolayer QDs always suffer from unwanted recombination in hole transport layers (HTLs) and low external quantum efficiencies (EQEs) as a result of electron overflow from QDs into HTLs. Herein, we tackle this dilemma by packing QDs with large size into monolayers, which enables us to mitigate the unwanted electron overflow and retain high EQE. More importantly, it further allows us to boost the irradiative recombination current at bandgap voltage. By virtue of simultaneously obtained high EQE and irradiative recombination rate, we can achieve brightness of 1,100 cd m-2 and 3,000 cd m-2 at 100% and 105% bandgap voltages with record high power conversion efficiencies (PCEs) of 23% and 22%, respectively. Since heat generation has been depressed and devices can be operated at reduced bias voltage, they show unprecedented T95 operation lifetimes (the time for the luminance to decrease to 95% of the initial value) of more than 4,000 h with an initial brightness of 3,000 cd m-2, and equivalent T95 lifetimes of more than 20,000 h at 1,000 cd m-2.

Self-deposition of Pt nanoparticles on graphene woven fabrics for enhanced hybrid Schottky junctions and photoelectrochemical solar cells

2016 ◽  
Vol 18 (3) ◽  
pp. 1992-1997 ◽  
Author(s):  
Zhe Kang ◽  
Xinyu Tan ◽  
Xiao Li ◽  
Ting Xiao ◽  
Li Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid State ◽  
Silicon Solar Cell ◽  
Power Conversion ◽  
Pt Nanoparticles ◽  
Woven Fabrics ◽  
Schottky Junction ◽  
Photoelectrochemical Solar Cells ◽  
Conversion Efficiencies

A hybrid Schottky junction and solid state photoelectrochemical graphene-on-silicon solar cell is designed and evaluated, and it shows impressive power conversion efficiencies of >10%.

A–D–A-type S,N-heteropentacene-based hole transport materials for dopant-free perovskite solar cells

2015 ◽  
Vol 3 (34) ◽  
pp. 17738-17746 ◽  
Author(s):  
Christopher Steck ◽  
Marius Franckevičius ◽  
Shaik Mohammed Zakeeruddin ◽  
Amaresh Mishra ◽  
Peter Bäuerle ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Levels ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Orbital Energy ◽  
Frontier Orbital ◽  
Conversion Efficiencies ◽  
Frontier Orbital Energy

Heteropentacene-based A–D–A type hole transport materials with suitable frontier orbital energy levels were synthesized and used in perovskite solar cells showing power conversion efficiencies up to 11.4%.

β-Functionalized push–pull opp-dibenzoporphyrins as sensitizers for dye-sensitized solar cells: the role of the phenylethynyl bridge

2019 ◽  
Vol 7 (17) ◽  
pp. 10712-10722 ◽  
Author(s):  
Yi Hu ◽  
Whitney A. Webre ◽  
Michael B. Thomas ◽  
Austen Moss ◽  
Sarah N. Hancock ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

Push–pull opp-dibenzoporphyrins with a phenylethynyl bridge were newly synthesized as sensitizers for dye-sensitized solar cells, giving power conversion efficiencies up to 6.7%, close to that of the N719 dye under similar conditions.

scholarly journals The Role of Hole Transport between Dyes in Solid-State Dye-Sensitized Solar Cells

2015 ◽  
Vol 119 (33) ◽  
pp. 18975-18985 ◽  
Author(s):  
Davide Moia ◽  
Ute B. Cappel ◽  
Tomas Leijtens ◽  
Xiaoe Li ◽  
Andrew M. Telford ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Hole Transport ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Ambient Air and Hole Transport Layer Free Synthesis: Towards Low Cost CH3NH3PbI3Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Muhammad Imran Ahmed ◽  
Hareema Saleem ◽  
Ahmed Nawaz Khan ◽  
Amir Habib
Keyword(s):  
Graphene Oxide ◽  
Low Cost ◽  
Power Conversion ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Efficiency Increase ◽  
The Cost ◽  
Conversion Efficiencies

Perovskite absorbers have witnessed a remarkable efficiency increase in last couple of years. To meet the commercialization challenge, reduced cost and improved efficiency are the two critical factors. We report on a hole transport layer free device synthesized under ambient air conditions of high humidity of 50% using TiO2-graphene oxide nanocomposite as electron selective contact. The devices achieved a power conversion efficiency of 5.9%. We introduce a novel synthesis route for TiO2-graphene oxide (GO) composite allowing superior charge transport properties. Incorporation of GO in TiO2allows achieving higher power conversion efficiencies while working under ambient air conditions. Ambient air synthesis with hole transport free architecture has the potential to reduce the cost of this technology leading to commercial viability.

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