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We report semitransparent and flexible organic solar cells (FOSCs) with high aperture, composed of doped graphene layers, ZnO, P3HT:PCBM, and …
We report semitransparent and flexible organic solar cells (FOSCs) with high aperture, composed of doped graphene layers, ZnO, P3HT:PCBM, and …
In present study, CoSe2, and CoSe2@N-doped graphene nanocomposite has been prepared in an inert atmosphere and used as a DSSC counter electrode. The fabricated nanocomposite was characterized using analytical techniques including FTIR, TGA, XRD, Raman, XPS, and BET. The assembled DSSC obtains a photoelectric …
While graphene-based Schottky junction solar cells have been demonstrated in the past, here the researchers took an extra step and doped the graphene with the organic chemical TFSA using a simple ...
DOI: 10.1016/J.JPOWSOUR.2014.03.118 Corpus ID: 96009199; Phosphorus-doped reduced graphene oxide as an electrocatalyst counter electrode in dye-sensitized solar cells @article{Wang2014PhosphorusdopedRG, title={Phosphorus-doped reduced graphene oxide as an electrocatalyst counter electrode in dye-sensitized solar cells}, …
The application of graphene as an acceptor and active layer in polymer solar cells was investigated [55,56]. Photoanodes and counter electrodes based on graphene have been studied by some ...
The p-type doped graphene Schottky junction solar cells showed efficiency up to 3.55% using different dopant concentrations. Miao et al.42 showed the enhancement of graphene/Si Schottky junction solar cell efficiency up to 8.6%, which is the highest reported graphene-based solid-state solar cell efficiency.
Extremely efficient flexible organic solar cells with a doped graphene transparent anode are demonstrated. • 3 layer graphene is determined to be optimal for …
A novel composite electrode composed of single-atom Ni doped graphene (Ni-NG) in the area of planar carbon-based perovskite solar cells is developed for the first time. Optimized PSCs with Ni-NG composite electrode achieved a champion PCE of 12.39%, which presents an improvement of 12.74% over than that of the PSCs …
pristine graphene electrode but 1.71% with graphene modified by pyrene butanoic acid succinimidyl ester (PBASE), which is about 55.2% of the PCE from the ITO control device (3.1%); De Arco et al [23] compared solar cells (active layer: CuPc/C 60) with CVD graphene and ITO electrodes fabricated on flexible polyethylene terephthalate (PET ...
The conductance of single-layer graphene was increased for more than 400% when it was doped with Au nanoparticles and poly (3,4-ethylenedioxythiophene): poly (styrene sulfonic acid). Then …
3.4 Target R sheet for ICD-doped graphene TCEs for two-terminal monolithic perovskite/silicon tandem solar cells. The transmittance of graphene is uniquely broadband, offering optical advantages over ITO and IZO alternatives. In this work, we have shown experimental data indicating that ICD-doping of graphene does not impact its …
Boron-doped graphene, synthesized by annealing a mixture of graphite oxide and B2O3, has shown a high conversion efficiency of 6.73% as a counter electrode (CE) for dye-sensitized solar cells, which is better …
Controlling the morphology and surface passivation in perovskite solar cells is paramount in obtaining optimal optoelectronic …
Interface engineering is a critical factor in achieving high photovoltaic performances for large-area, printable, flexible and low cost organic solar cells (OSCs). Herein, we developed a solution …
The J–V curves of the CZTS/CdS and CZTS/N-doped graphene solar cells. 4. Conclusion. In this study, the effect of using N-doped graphene film as a buffer layer on the photovoltaic performance of CZTS-based thin film solar cell was investigated. The XRD and Raman spectroscopy measurements of Cu-poor and Zn-rich CZTS …
Nitrogen-doped graphene was demonstrated as an efficient and alternative metal-free electrocatalyst for dye-sensitized solar cells. Electrochemical measurements showed that the nitrogen-doping process can remarkably improve the catalytic activity of graphene toward triiodide reduction, lower the charge transfer resistance, and thus enhance the …
Tin oxide (SnO2) is widely adopted as an electron transport layer in perovskite solar cells (PeSCs) because it has high electron mobility, excellent charge selective behavior owing to a large …
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 6.85%. • The thick photoactive layer enables production of a 1.6 cm 2-large flexible cell with ...
In recent years, graphene-based materials have been successfully applied in all types of photovoltaics including Si-based Schottky junction solar cells to the newest member of this family, the perovskite solar cells [12,13,14,15,16,17,18].Though the success is still restricted to laboratory-based research scale, it has a great potential to replace …
The overpotentials for doped graphene and Pt were calculated and the best doped structure for each dopant element was identified (Supplementary Table S1) gs. 1 B and 1 C show the free energy diagrams of IRR for the best doped structures under an equilibrium potential of 0.54 V. The free energy diagrams of 0 V potential of …
Tin oxide (SnO2) is widely adopted as an electron transport layer in perovskite solar cells (PeSCs) because it has high electron mobility, excellent charge selective behavior owing to a large band gap of 3.76 eV, and low-temperature processibility. To achieve highly efficient SnO2-based PeSCs, it is necessary to control the oxygen …
Nitrogen-doped graphene frameworks (N-GFs) with a large specific surface area (1149 m 2 g −1) are successfully synthesized from fumaric acid in the presence of sodium carbonate with urea added as nitrogen precursor through a facile one-step fast pyrolysis.The N-GFs can be utilized as an excellent counter electrode in hole transport material (HTM)-free …
High quality freestanding pristine graphene (PG) and boron-doped graphene (BG) were prepared by a novel and versatile method. BG is more conductive than PG due to a larger density of state generated near the Fermi level. Using BG as a back electrode, we achieved improved hole-collecting ability and photovoltaic efficiency for CdTe solar cells.
The quick reduction and regeneration of the electrolyte (triiodide/iodide redox couple, I 3− /I −) is one of the main issues in dye-sensitized solar cells (DSSCs).The well-known platinum counter electrodes (CEs) that facilitate electrolyte reduction and regeneration are very expensive; hence, low-cost and efficient CEs are in demand to …
Schottky junction solar cells fabricated with TFSA doped graphene have exhibited a PCE of 8.6% [29]. In addition, in polymer light emitting diodes, the work function of graphene electrode was tuned by TFSA doping for efficient hole injection [30].
Shown in (d) is the comparison of performances of ITO with modified PEDOT:PSS by O 2 plasma (IIIA) and graphene doped with AuCl 3 (10 mM) (IIC). ... Organic solar cells (OSCs) are a promising low ...
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Electronic properties investigation of pristine and doped graphene sheet with various concentrations of P and N atom indicates that pristine graphene has zero …
The electrodes were attached to the PSCs by lamination. The PSC sample area was chosen to be 2 × 3 mm 2 on the basis of the overlapping area of the FTO and graphene electrodes. 2.2. Si solar cells. Boron-doped Cz-mono-Si wafers were used as the bulk of c-Si solar cells. The p-n junction was formed by POCl 3 gas diffusion process …
Graphene (G) has been a game-changer for conductive optical devices and has shown promising aspects for its implementation in the power industry due to its diverse structures. Graphene has played an essential role as electrodes, hole transport layers (HTLs), electron transport layers (ETLs), and a chemical modulator for perovskite …
Here, we report an effective method to improve the performance and long-term stability of graphene-based OSCs using electrostatically doped graphene films via …
We are presenting a solar cell consisting of electron-doped graphene (n-G)/holes-doped silicon (p-Si) Schottky junction, which provides a very high power conversion efficiency (PCE). The high PCE of our solar cell is caused by its high Schottky barrier height, which gives a very low value for the saturated reverse current (I0), and …
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