Phosphorous-doped graphene as an efficient interfacial layer material for application in solution-processed photodetectors

Verma, Seema; Chaudhary, Swati; Mishra, Tapas Kumar; Gupta, Saral K.; Negi, Chandra Mohan Singh

doi:10.1016/j.nanoso.2022.100937

Cited by 4 publications

(2 citation statements)

References 41 publications

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“…Third-generation solar cells, such as perovskite solar cells (PSCs), are currently receiving a lot of scientific attention because they offer a new area for solar energy research. They are also cost-effective and highly efficient [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Engineering the active layer of lead-free perovskite (CH₃NH₃SnI₃) solar cells using numerical simulation

Yadav,

Gupta,

Negi

2024

Phys. Scr.

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We conduct a thorough numerical simulation to examine the impact of the thickness, defect density, and doping density of the active layer on the photovoltaic performance of the lead-free CH3NH3SnI3 perovskite solar cell (PSC). We observe that increasing the thickness of the active layer initially from 100 nm to 400 nm improved the power conversion efficiency (PCE) from 10.4% to 11.6%. However, further increasing the thickness to 800 nm resulted in a slight decline in PCE to 11.1%. This unexpected trend can be attributed to the high carrier mobility of charges in the CH3NH3SnI3 perovskite, which enables fast extraction of charge carriers, offsetting losses due to charge recombination. Increasing active layer trap density substantially declines the PCE from 11.5% at 1014 cm-3 to 7.5% at 1018 cm-3, as a result of the noticeable drop in open-circuit voltage (VOC) and fill factor (FF) with a growing defect density due to the enhancement in trap-assisted recombination. This is backed by a striking reduction in the shunt resistance upon increasing the defect density. Raising the active layer doping firstly enhances the PCE, reaching a peak value of 12.5% at the active layer doping density of 1017 cm-3, after which the PCE decreases as the doping density continues to increase. We explain these observations by energy level diagrams deduced at various doping levels.

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Section: Introductionmentioning

confidence: 99%

Engineering the active layer of lead-free perovskite (CH₃NH₃SnI₃) solar cells using numerical simulation

Yadav,

Gupta,

Negi

2024

Phys. Scr.

Self Cite

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“…[64][65][66][67][68][69] Much efforts have been made to improve the efficiency and performance of PSCs by introducing various materials in different parts of these cells. [70][71][72][73] Among these compounds, GBNs found a special place due to their unique properties including excellent electrical conductivity, EC, (7 × 10 7 to 1 × 10 8 S m −1 ), high thermal conductivity, TC (∼5000 W m −1 K −1 ), large theoretical specic surface area (2630 m 2 g −1 ), high carrier mobility (200 000 cm 2 V −1 s −1 ), high Young's modulus (∼1 TPa), and high mechanical strength (130 GPa). 66,[74][75][76][77][78][79][80][81] Also, GBNs increases the exibility of these cells.…”

Section: Introductionmentioning

confidence: 99%

Recent progress on the use of graphene-based nanomaterials in perovskite solar cells

2023

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Optoelectronic performance of MAPbI3:PCBM bulk heterojunction photodetectors

Diwakar,

Upadhyaya,

Yadav

et al. 2024

Bull Mater Sci

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Phosphorous-doped graphene as an efficient interfacial layer material for application in solution-processed photodetectors

Cited by 4 publications

References 41 publications

Engineering the active layer of lead-free perovskite (CH₃NH₃SnI₃) solar cells using numerical simulation

Engineering the active layer of lead-free perovskite (CH₃NH₃SnI₃) solar cells using numerical simulation

Recent progress on the use of graphene-based nanomaterials in perovskite solar cells

Optoelectronic performance of MAPbI3:PCBM bulk heterojunction photodetectors

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Phosphorous-doped graphene as an efficient interfacial layer material for application in solution-processed photodetectors

Cited by 4 publications

References 41 publications

Engineering the active layer of lead-free perovskite (CH3NH3SnI3) solar cells using numerical simulation

Engineering the active layer of lead-free perovskite (CH3NH3SnI3) solar cells using numerical simulation

Recent progress on the use of graphene-based nanomaterials in perovskite solar cells

Optoelectronic performance of MAPbI3:PCBM bulk heterojunction photodetectors

Contact Info

Product

Resources

About

Engineering the active layer of lead-free perovskite (CH₃NH₃SnI₃) solar cells using numerical simulation

Engineering the active layer of lead-free perovskite (CH₃NH₃SnI₃) solar cells using numerical simulation