The present work is a systematic and theoretical study performed on three organometallic p-conjugated molecules based on graphene nanoribbons (GNRs) to act as potential donor material in organic photovoltaic cells, using the rhf, b3lyp and bpbe methods together with the 6–31 + g(d,p) basis. Analysis is made on HOMO, LUMO, …
A graphene oxide (GO):Nafion ink is developed and an advanced back-junction GO:Nafion/n-Si solar cell with a high-power conversion efficiency (18.8%) and …
Graphene is an ideal substitute for indium tin oxide electrode in organic photovoltaic (OPV) devices, due to its outstanding electrical, optical, chemical and mechanical properties. However, the graphene electrode suffers from work function mismatch with common hole injection layer and intrinsic hyd …
The crucial photovoltaic parameters, such as short-circuit current density, open-circuit voltage, fill factor and PCE, are discussed to reveal the merits, drawbacks and future …
Here, we demonstrate that graphene quantum dots blended with regioregular poly (3-hexylthiophene-2,5-diyl) or poly (2-methoxy-5- (2-ethylhexyloxy)-1,4phenylenevinylene) polymer results in a significant …
The thin-film PV cells such as organic photovoltaic cells (OPVs), consume less material comparative to Si-based cells and can be fabricated by using the low-cost solution processing techniques, consequently lowering the cost per unit watt power [8,9,10].
In this Progress Report we summarize and discuss comprehensively the advances made so far for applications of graphene in organic photovoltaic (OPV) cells, including that for transparent electrodes, active layers and interfaces layer in OPV.
Researchers have examined the efficiency of graphene in solar cells by using it on a thin film-like photovoltaic cell known as a "dye-sensitized solar cell." The scientists changed the solar cell by adding a sheet of graphene and covering it with indium tin oxide and plastic transparent backing.
It has been reported that graphene can play diverse, but positive roles such as an electrode, an active layer, an interfacial layer and an electron …
Photovoltaic devices, or solar cells, are a means of generating electricity from sunlight in an environmentally friendly manner without emissions. Among the various types of solar cells, organic photovoltaics (OPVs) are known as lightweight, transparent, thin and flexible solutions. OPVs generally consist of a charge donor layer, a charge acceptor layer, and …
This paper presents an intensive review covering all the versatile applications of graphene and its derivatives in solar photovoltaic technology. To understand the internal working mechanism for the attainment of highly efficient graphene-based solar cells, graphene''s parameters of control, namely its number of layers and doping concentration are …
Quantum-dot-sensitized solar cells (QDSSCs), dye-sensitized solar cells (DSSC), and perovskite solar cells are viable alternatives to conventional silicon solar …
A highly flexible and durable transparent graphene electrode with thermal stability was developed via the direct integration of polyimide (PI) on graphene. Due to the high transparency of PI-integrated graphene electrode and intimate contact between graphene and PI substrate, high-efficiency flexible organic solar cell with a PCE of …
Package-free flexible organic solar cells with graphene top electrodes Adv. Mater., 25 (31) (2013), pp. 4296-4301 ... Graphene/ZnO nanocomposite as an electron transport layer for perovskite solar cells; the effect of graphene concentration on photovoltaic, 7 (46) ...
Efficient organic photovoltaic cells on a single layer graphene transparent conductive electrode using MoO x as an interfacial layer Nanoscale, 9 ( 2017 ), pp. 251 - 257 View in Scopus Google Scholar
Herein, a highly flexible and durable electrode with thermal stability achieved through direct integration of polyimide (PI) on graphene is introduced. The PI-assisted graphene electrode exhibits an ultra-clean …
To address chemical and mechanical instability of currently used indium tin oxide (ITO), graphene has been suggested as a …
Graphene mesh electrodes (GMEs) with good conductivity and transparency have been fabricated by the standard industrial photolithography and O 2 plasma etching process using graphene solutions. Organic photovoltaic (OPV) cells using GMEs as the 61 61
We demonstrate the fabrication of inverted-structure organic solar cells (OSCs) with graphene cathodes. The graphene film used in this work was work-function-en Gunho Jo, Seok-In Na, Seung-Hwan Oh, Sangchul Lee, Tae-Soo Kim, Gunuk Wang, Minhyeok Choe, Woojin Park, Jongwon Yoon, Dong-Yu Kim, Yung Ho Kahng, Takhee …
Imagine a future in which solar cells are all around us—on windows and walls, cell phones, laptops, and more. A new flexible, transparent solar cell developed at MIT brings that future one step closer. The device combines low-cost organic (carbon-containing) materials with electrodes of graphene, a flexible, transparent material made …
Two dimensional materials have exciting optical and electronic properties and have gained significant attention for the formation of new generation solar cells also optoelectronic devices. The narrow active substances in Photovoltaic slim bodies have high flexibility of two-dimensional substances make them a clear option for combination with …
In this chapter we briefly discuss the use of graphene and graphene-based nanomaterials and their application in different types of solar cells. Graphene is a sp 2-hybridized single atomic layer of carbon arranged in honeycomb structures. [13] This precisely two-dimensional material exhibits unique high crystal and electronic qualities …
1. Introduction The conversion of solar power into electrical energy is a clean, scalable, and environmentally friendly means of energy production. Organic solar cells (OSCs) are photovoltaic devices that use organic molecules or …
A graphene oxide (GO):Nafion ink is developed and an advanced back-junction GO:Nafion/n-Si solar cell with a high power conversion efficiency (18.8%) and large area (5.5 cm2) is
Graphene, a one-atom thick layer of graphite with a two-dimensional sp2-hybridized carbon network, has recently attracted tremendous research interest due to its …
Graphene plays a vital role in diodes, photovoltaic cells, supercapacitors, batteries, and full cells applications and it enhances the existing efficiency in a tremendous way.
Graphene, a sp2 -hybridized carbon monolayer, has been extensively investigated for photovoltaic energy conversion, owing to its robust in-plane intrinsic strength, high...
Large sheets of transparent graphene that could be used for lightweight, flexible solar cells or electronics displays can now be created using a method developed at MIT. The technique involves a buffer layer of parylene for the graphene transfer process. Lead researchers include Jing Kong, Tomas Palacios, Markus Buehler, and Giovanni …
Graphene, a one-atom thick layer of graphite with a two-dimensional sp 2-hybridized carbon network, has recently attracted tremendous research interest due to its peculiar properties such as good mechanical strength, high thermal conductivity, superior transparency, large specific surface area and exceptional charge transport properties.
As a promising two-dimensional nanomaterial with outstanding electronic, optical, thermal, and mechanical properties, graphene has been proposed for many applications. In this Progress Report we summarize and discuss comprehensively the advances made so far for applications of graphene in organic ph …
An assortment of carbon-based materials, such as nanotubes, nanorods, nanoribbons, nanofibers and graphene, is fast gaining significant research interest in developing various components of organic solar cells (OSCs) due to their unique optoelectronic properties.
Extremely efficient flexible organic solar cells with a doped graphene transparent anode are demonstrated. • 3 layer graphene is determined to be optimal for the cell design. • A 0.2 cm 2 cell achieves a high power conversion efficiency of …
Here, we report the fabrication of semitransparent organic photovoltaics (OPVs) with graphene transparent electrodes as both cathode and anode, which can absorb light from both sides with the power conversion efficiency up to 3.4%.