Optoelectronic simulation of a high efficiency C2N based solar cell via buffer layer optimization

Yasin, S.; Waar, Ziad Abu; AlZoubi, Tariq; Moustafa, Mohamed

doi:10.1016/j.optmat.2021.111364

Cited by 19 publications

(31 citation statements)

References 41 publications

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“…The solar cell input parameters for simulations are summarized in Table 1, as extracted from [22,24,[29][30][31][32]. For interface layers, the SCAPS-1D default values are shown in Table 2.…”

Section: Architecture Design and Modellingmentioning

confidence: 99%

“…The thickness of the absorber layer in solar cells contributes to overall device performance [22,24,33]. Beer-Lambert law states that the absorbed light intensity increases exponentially when the length of the path decreases [34].…”

Section: Optimizing C 2 N Thicknessmentioning

confidence: 99%

“…It started decreasing beyond 300 nm and then start increasing after 800 nm thickness. Below 800 nm the diffusion length is smaller than the thickness of the absorber layer, with an active recombination rate leading to increased series resistance and power depletion, resulting in increased ll factor [24].…”

Section: Optimizing C 2 N Thicknessmentioning

confidence: 99%

“…Figure 5 (e) and (f) depict that J sc and QE degenerate when the defect density of the active layer increases. The tuning of the bandgap structure occurs by the increase in defect density which inversely contributes to the light absorption process [24]. In this study, the value for simulation is kept at 10 14 cm -3 with the following output parameters: V oc of 1.2257, J sc about 18.257244 mA/cm 2 , FF of 84.96%, and PCE of 19.01%.…”

Section: In Uence Of C 2 N Defect Densitymentioning

confidence: 99%

“…Tsoeu et al, predicted 2D GaS/C 2 N heterojunction to be an appropriate replacement for lead-containing materials and recorded the e ciency of their work at 17.8% [23]. S.Yasin et al developed and simulated C 2 N based solar cells using four different buffer layer and observed that GZO delivers the highest e ciency of 18.57% [24].…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Thin-Film Carbon Nitride (C2N) based solar cell via Zn1−xMgxO as a buffer layer

Ahmad

Farooq

Khan

et al. 2022

Preprint

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Carbon nitride (C2N) based solar cell is getting cynosure in the photovoltaic research community due to their tremendous advantages over other thin-film solar cells such as environmentally friendly material nature and low fabrication cost. In this paper, we theoretically analyzed Zinc Magnesium oxide (Zn1 − xMgxO) as a buffer layer coupled with C2N as an absorber layer to form a p-n junction by using SCAPS- 1D simulation tool. ZMO as an electron transport layer (ETL) utilized with four Mg (x) doped with the concentrations of x = 0.0625, 0.125, 0.1875, and 0.25. After optimizing different layers for the proposed structure, it has been noticed that increasing the thickness of the C2N layer results in the enhancement of efficiency rate. Further, it was observed that the doping density of C2N beyond 1015 cm− 3 degrade the performance of the cell. In addition to this, the optimization of the buffer layer is performed and the optimum performance parameters were achieved at 30 nm. The theoretically modelled structure shows a great enhancement in Open circuit voltage (Voc), Short circuit density (Jsc), Fill factor (FF), and Power conversion efficiency (PCE) with regards to the presented approach. The structure is compared with different kind of other solar cells and obtained parameters shows the higher values of Voc of 1.225 V, Jsc of 18.2572 mA/cm2, FF of 84.96%, and PCE of 19.01%. The recorded results are in good agreement with the standard theoretical studies.

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Section: Architecture Design and Modellingmentioning

confidence: 99%

Section: Optimizing C 2 N Thicknessmentioning

confidence: 99%

Section: Optimizing C 2 N Thicknessmentioning

confidence: 99%

Section: In Uence Of C 2 N Defect Densitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization of Thin-Film Carbon Nitride (C2N) based solar cell via Zn1−xMgxO as a buffer layer

Ahmad

Farooq

Khan

et al. 2022

Preprint

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Understanding the strategies to attain the best performance of all inorganic lead‐free perovskite solar cells: Theoretical insights

Roy

Khare

2022

Intl J of Energy Research

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Summary Within a decade of their existence, the potential of Perovskite solar cells (PSCs) has been recognized by the research community. To date, the highest power conversion efficiency (PCE) attained by PSCs has touched the 25.8% mark. However, most of the leading PSCs have incorporation of toxic lead (Pb), posing a barrier on the market acceptability of these cells. Inorganic lead‐free PSCs are being explored extensively as clean and green energy sources. By bridging the performance gap and stability issues, the drawbacks of lead‐free PSCs can be minimized. In this work, we have optimized CsSn0.5Ge0.5I3‐based PSCs using various organic and inorganic transport layers. A comparative analysis of all the simulated cells in terms of capacitance‐voltage (C‐V) and conductance‐voltage (G‐V) characterization has been done. This work reveals the decisive role of charge transport layers (CTLs) in the determination of the built‐in potential of the cell. The impact of absorber layer thickness (with different levels of defect densities), variation of thickness of electron transport layer (ETL), and hole transport layer (HTL) on the performance of PSCs is studied. The results of study on the effect of carrier concentration on the absorber layer, ETL, and HTL (using both organic and inorganic charge transport layers) on the performance of the cell is also conducted. This study explains the role of energy band level tuning required between CTLs and the absorber layer. The role of band offset at the interface of the CTL (ETL/HTL) and perovskite layer upon charge transportation and collection mechanisms are explained in detail. We have calculated and explained the optimum Valence Band Offset and Conduction Band Offset required for a PSC to exhibit the best possible performance. In addition, we have analyzed the role of contact formation and optimum barrier height (¢B) required between HTL and back contact to obtain efficient PSC using different back contacts. Upon using similar cell configuration and different back contacts (Ni, Au, and Ag), the optimized values of (VBO, ¢B) are (0.15 eV, −0.05 eV), (0.1 eV, −0.4 eV), and (−0.15 eV, −0.51 eV), respectively.

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Adsorption mechanisms of different toxic molecular gases on intrinsic C2N and Ti-C2N-V monolayer: a DFT study

Liu

Guo

2022

J Mol Model

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Optoelectronic simulation of a high efficiency C2N based solar cell via buffer layer optimization

Cited by 19 publications

References 41 publications

Optimization of Thin-Film Carbon Nitride (C2N) based solar cell via Zn1−xMgxO as a buffer layer

Optimization of Thin-Film Carbon Nitride (C2N) based solar cell via Zn1−xMgxO as a buffer layer

Understanding the strategies to attain the best performance of all inorganic lead‐free perovskite solar cells: Theoretical insights

Adsorption mechanisms of different toxic molecular gases on intrinsic C2N and Ti-C2N-V monolayer: a DFT study

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