Developed graphene/Si Schottky junction solar cells based on the top-window structure

Busaidi, Hilal Al; Suhail, Ahmed; Jenkins, David; Pan, G.

doi:10.1016/j.cartre.2023.100247

Cited by 11 publications

(7 citation statements)

References 34 publications

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“…Regarding the E f , E c , E v , N c , and N v , the N a (doping concentration acceptor) would be calculated for p-type germanene using equation (5), and the N d (doping concentration donor) would be calculated for n-type germanene using equation (6).…”

Section: Simulation and Model Detailsmentioning

confidence: 99%

“…The extraordinary properties of graphene have gained tremendous attention in recent years and have turned [1,2] it into an excellent option to be applied in the structure of the solar cells [3][4][5], demonstrating that the other 2D structures of the periodic table's IV group, such as germanene, can be used in the solar cell structure. Germanene is a hexagonal buckled honeycombed structure of germanium atoms in two dimensions [6,7].…”

Section: Introductionmentioning

confidence: 99%

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Investigating the potential of Germanene in solar cells: A simulation study on a-SiGe/c-Si structure

Madmeli,

Ganji

2024

Preprint

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Utilizing the two-dimensional (2D) nano-bands with graphene-like atom arrangement in the structure of the solar cells is of significant importance to present the next generation of solar cells. The present study used germanene (a 2D structure made of germanium atoms) as p-type and n-type semiconductor layers in structure ITO/germanene (1, 2, 3)/MoS2 (n)/a-SiGe: H (i)/c-Si (P)/Au of the heterojunction cell. In this structure, germanene (1, 2, 3) is the p-type germanene semiconductor layer doped with AL, the n-type germanene semiconductor layer doped with P, and the p-type germanene semiconductor layer doped with In, represented by germanene1, germanene2, and germanene3 respectively, and were used separately in the solar cell structure. Also, the free-standing germanene was used as front contact in structure germanene/MoS2 (n)/a-SiGe: H (i)/c-Si (P)/Au of the heterojunction cell. The impacts of different radiant intensities at 300 K temperature by the Am1.5 spectrum radiation were investigated using AFORS-HET simulation tool. According to the results, in 1 Sun radiant intensity, by employing germanene1, germanene2, and germanene3 layers separately in the cell structure, the highest efficiency was achieved in the presence of the germanene2, which was 18.64. The highest efficiency in 0.1 Sun and 100 Sun radiant intensities was 17.78 and 19.56, respectively, both obtained in the presence of the germanene2 layer. By applying the free-standing germanene in the structure of the proposed cell, the efficiency in radiant intensities of 1 Sun, 0.1 Sun, and 50 Sun were 26.98, 25.87, and 27.99, respectively. The positive effects of the germanene layer, both as semiconductor layers and free-standing germanene (front contact), were observable in all investigated radiant intensities.

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Section: Simulation and Model Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating the potential of Germanene in solar cells: A simulation study on a-SiGe/c-Si structure

Madmeli,

Ganji

2024

Preprint

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“…The application of graphene in the solar cell structure has been highlighted due to its stunning properties (Chen et al 2020;Gong et al 2021;Al Busaidi et al 2023). This 2D structure, discovered in 2004 (Novoselov et al 2004), shows particular properties that suggest that the 2D structures of other elements of the periodic table's IV group (such as silicene) might be capable of being used in the structure of solar cells.…”

Section: Introductionmentioning

confidence: 99%

Simulation of a-SiGe/c-Si solar cell with silicene front contact

Madmeli,

Ganji

2024

Preprint

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The objective of the present study was to utilize the two-dimensional (2D) structures of silicone (known as silicene) in the structure of solar cells. Its spectacular optical and electronic properties justify its application in solar structures. For this purpose, silicene was involved in the solar cell structure in 3 manners: as silicene1, an n-type semiconductor layer doped with P impurity; silicene2, a p-type semiconductor layer doped with Al; and as the free-standing silicene for the front contact. The former two applications were conducted in the ITO/silicene (1, 2)/MoS2 (n)/a-SiGe: H (i)/c-Si (P)/Au structure, while the latter was in the Silicene/MoS2 (n)/a-SiGe: H (i)/c-Si (P)/Au structure. Using the AFORS-HET software, the solar cells were exposed to Am1.5 spectrum radiation at 300K temperature, and the impacts of 1 sun, 0.1 sun, and 10 sun of radiant intensity were evaluated to obtain a better insight into the function of this nanoribbon. The highest efficiencies in the mentioned radiant intensities were observed in the proposed cell with the silicene1 layer as the semiconductor, which were 18.96%, 17.96%, and 19.22%, respectively. Moreover, the efficiencies of the cell with free-standing silicene as the front contact were 27.13%, 25.95%, and 27.65%, respectively, in the mentioned radiant intensities.

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“…On the other hand, thin-film solar cells represent the latest advancement in PV technology. An ideal photoactive material for use in solar cells must meet several key requirements, including high optical absorption, long diffusion lengths, and the ability to form a decent electronic junction (homo/hetero/Schottky) with appropriately well-matched materials [8][9][10]. In this context, all-polymer solar cells (all-PSCs) represent a highly competitive PV technology with high efficiency and low cost.…”

Section: Introductionmentioning

confidence: 99%

TCAD Device Simulation of All-Polymer Solar Cells for Indoor Applications: Potential for Tandem vs. Single Junction Cells

Alanazi

2023

Polymers

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The utilization of indoor photovoltaics makes it feasible to harvest energy from artificial light sources. Although single-junction indoor photovoltaics have demonstrated exceptional efficacy when using LED lighting, there is still a need for more comprehensive testing of tandem structures. Herein, the first systematic TCAD simulation study on the potential for tandem all-polymer solar cells (all-PSCs) for indoor applications is provided. The presented all-PSCs are based on experimental work in which the top wide bandgap subcell comprises a polymer blend PM7:PIDT, while the bottom narrow bandgap subcell has a polymer blend PM6:PY-IT. Standalone and tandem cells are simulated under AM1.5G solar radiation, and the simulation results are compared with measurements to calibrate the physical models and material parameters revealing PCE values of 10.11%, 16.50%, and 17.58% for the front, rear, and tandem cells, respectively. Next, we assessed the performance characteristics of the three cells under a white LED environment for different color temperatures and light intensities. The results showed a superior performance of the front cell, while a deterioration in the performance was observed for the tandem cell, reflecting in a lower PCE of 16.22% at a color temperature of 2900 K. Thus, an optimized tandem for outdoor applications was not suitable for indoor conditions. In order to alleviate this issue, we propose designing the tandem for indoor lightening by an appropriate choice of thicknesses of the top and bottom absorber layers in order to achieve the current matching point. Reducing the top absorber thickness while slightly increasing the bottom thickness resulted in a higher PCE of 27.80% at 2900 K.

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Developed graphene/Si Schottky junction solar cells based on the top-window structure

Cited by 11 publications

References 34 publications

Investigating the potential of Germanene in solar cells: A simulation study on a-SiGe/c-Si structure

Investigating the potential of Germanene in solar cells: A simulation study on a-SiGe/c-Si structure

Simulation of a-SiGe/c-Si solar cell with silicene front contact

TCAD Device Simulation of All-Polymer Solar Cells for Indoor Applications: Potential for Tandem vs. Single Junction Cells

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