Theoretical evidence of high power conversion efficiency in double perovskite solar cell device

Kumar, Manish; Raj, Abhishek; Kumar, Arvind; Anshul, Avneesh

doi:10.1016/j.optmat.2020.110565

Cited by 64 publications

(42 citation statements)

References 52 publications

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“…39 This can be because of the superiority of carrier recombination along with the presence of parasitic resistance losses. 40 The PCE increased initially with the thickness and reached a maximum value of 21.21% at 1000 nm, which was chosen as the final optimum absorber thickness. Then it declined with a further enhancement in the absorber thickness.…”

Section: Simulated Parametersmentioning

confidence: 99%

Investigating the theoretical performance ofCs₂TiBr₆‐based perovskite solar cell with La‐dopedBaSnO₃andCuSbS₂as the charge transport layers

Shivesh

Alam

Kushwaha³

et al. 2021

Intl J of Energy Research

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A lead-free, completely inorganic, and nontoxic Cs 2 TiBr 6 -based double perovskite solar cell (PSC) was simulated via SCAPS 1-D. La-doped BaSnO 3 (LBSO) was applied as the electron transport layer (ETL) unprecedentedly in the simulation study of PSCs, while CuSbS 2 was utilized as the hole transport layer (HTL). wxAMPS was used to validate the results of SCAPS simulations. Moreover, the first-principle density function theory (DFT) calculations were performed for validating the 1.6 eV bandgap of the Cs 2 TiBr 6 absorber. To enhance the device performance, we analyzed and optimized various parameters of the PSC using SCAPS. The optimum thickness, defect density, and bandgap of the absorber were 1000 nm, 10 13 cm À3 , and 1.4 eV, respectively. Furthermore, the optimum thickness, hole mobility, and electron affinity of the HTL were 400 nm, 10 2 cm 2 V À1 s À1 , and 4.1 eV, respectively. However, the ETL thickness had a negligible effect on the device's efficiency. The optimized values of doping density for the absorber layer, HTL, and ETL were 10 15 , 10 20 , and 10 21 cm À3 , respectively. Herein, the effect of different HTLs was analyzed by matching up the built-in voltage (V bi ) in respect of the open-circuit voltage (V OC ). It was found that the V bi was directly proportional to the V OC , and CuSbS 2 was the champion in terms of efficiency for the PSC. The optimum work function of metal contact and temperature of the PSC were 5.9 eV and 300 K, respectively. After the final optimization, the device achieved an exhilarating PCE of 29.13%. Novelty Statement• LBSO was used as the ETL for the very first time in the simulation study of PSCs, while CuSbS 2 was utilized as the HTL.

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Section: Simulated Parametersmentioning

confidence: 99%

Investigating the theoretical performance ofCs₂TiBr₆‐based perovskite solar cell with La‐dopedBaSnO₃andCuSbS₂as the charge transport layers

Shivesh

Alam

Kushwaha³

et al. 2021

Intl J of Energy Research

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“…This is due to the inherent volatile nature of the organic counterpart in perovskite materials used as absorber layer in PSCs. [ 35 ] However, this study uses different inorganic Cs containing halide perovskites and hence it becomes necessary to analyze the photovoltaic performance stability of the device configuration with increase in temperature. With this view, the operating temperature of the device configurations under study is varied from 300 to 500 K. The results are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Design and Comparative Performance Analysis of High‐Efficiency Lead‐Based and Lead‐Free Perovskite Solar Cells

Jayan

2022

Physica Status Solidi (a)

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Recently, the attention of photovoltaic (PV) community has been switched to a newcomer in the PV industry, namely the perovskite solar cells (PSCs) owing to their high power conversion efficiency (PCE), suitable band alignment, high diffusion length of charge carriers, and efficient photon absorption in the visible and near IR region of the electromagnetic spectrum. The continuing research efforts to improve the performance parameters of PSCs have improved the PCE from 3.9% in 2009 to a high value of 25.6% in 2021. [1,2] Even so, the commercialization of PSCs with the most popular absorber material, viz. CH 3 NH 3 PbI 3 (methyl ammonium lead iodide or MAPbI 3 ), is severely constrained as the entire perovskite absorber layer is chemically and thermally unstable due to the inherent instability of the organic cation present in it. One possible solution to improve the stability of the device is to replace the hybrid organic inorganic perovskite layer with an inorganic halide perovskite layer without affecting the charge extraction efficiency of the device. The current research effort in device architecture, materials, and interfaces makes the expected commercialization and use of PSCs very plausible and fascinating. Cesium (Cs) remains the best option for the unstable organic methyl ammonium (MA) cation in the widely used perovskite absorber material MAPbI 3 . Studies show that Cs incorporation in hybrid perovskites may increase thermal stability at temperatures above 100 C, optimise optical and electrical properties, control thermodynamic phase stability, finely regulate layer formation, and enhance device performance consistency. [3] Beyond Cs-doped hybrid perovskites, its fully inorganic counterpart, in which the organic part is totally replaced by Cs cation, also exhibits intriguing properties, which can be modified further to improve the interface between the active material and the neighboring transport layers of the device to enhance the transport of charge carriers. [4][5][6][7] A study shows that a highest PCE of 19.03% can be achieved with the device configuration FTO/TiO 2 /CsPbI 3 / SpiroMeOTAD/Ag when the popular but unstable transport layers TiO 2 and SpiroMeOTAD are employed with the CsPbI 3 absorber layer. [8] However, under optimum values of input parameters, a simulation study shows that a PCE of 21.4% for CsPbI 3 -based PSC with SnO 2 and Cu 2 O as transport layers can be achieved. [9] Even when the inorganic Cs-based lead halide perovskites exhibit comparatively good PCE, the toxic nature of lead (Pb) and the overall instability of the solar cell itself pose significant obstacles toward the large-scale commercialization of PSCs. [10] The substitution of nontoxic cations like Ge 2þ or Sn 2þ for poisonous Pb 2þ in inorganic Cs-based lead halide perovskites is one of the important steps toward the commercialization of PSCs. [11] Due to the intrinsic oxidation of Sn 2þ and Ge 2þ to Sn 4þ and Ge 4þ states, respectively, leading to device instability, computational modeling, and performance analysis o...

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“…However, typically hole confirm lesser diffusion length on account of higher effective mass but generally in the simulation studies, it has been neglected due to very little variation in device output and adopted same diffusion length for both electron and hole. [49][50][51][52][53] The device architecture FTO/TiO 2 /MASnI 3 /Spiro-OMeTAD/Au is used for this study as shown in Figure 1A along with the energy band diagram and grading of energy parameters in Figure 1B,C, respectively. The TiO 2 as electron transport layer (ETL) is chosen after the optimization of different ETLs.…”

Section: Device Configuration and Simulation Methodologymentioning

confidence: 99%

“…In the present simulation, all the electrical and physical parameters are collected from previous reported studies, as listed in the Table 1. 22,46,50,[53][54][55][56][57][58][59][60][61] The interfacial contact between ETL/absorber and absorber/HTL play very crucial role in the PSCs. Two defect states such as TiO 2 / MASnI 3 and MASnI 3 /Spiro-OMeTAD are taken into consideration to understand the carrier recombination and tabulated in Table 2.…”

Section: Device Configuration and Simulation Methodologymentioning

confidence: 99%

“…The diffusion length value is considered as same for both electron and holes. However, typically hole confirm lesser diffusion length on account of higher effective mass but generally in the simulation studies, it has been neglected due to very little variation in device output and adopted same diffusion length for both electron and hole 49‐53 …”

Section: Device Configuration and Simulation Methodologymentioning

confidence: 99%

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Computational analysis of bandgap tuning, admittance and impedance spectroscopy measurements in lead‐free MASnI ₃ perovskite solar cell device

Kumar

Raj

Kumar

et al. 2022

Intl J of Energy Research

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Summary Recently, lead‐free perovskite solar cell (PSC) heterostructure using CH3NH3SnI3 (MASnI3) absorber layer received significant attention due to their superior device performance. However, the effect of deep defect state on device performance is only little known about the MASnI3 absorber based PSC. In the present study, initially we optimized the power conversion efficiency of the device via the bandgap tuning and electron affinity variations in MASnI3 absorber layer using SCAPS‐1D simulator. Thereafter, the capacitance‐voltage (C‐V), Mott‐Shottkey (MS) (1/C2‐V) and conductance‐voltage (G‐V) measurements are performed through simulation approach, which confirmed a solid sign of deep defects in the perovskite heterostructure device. In addition, temperature dependent capacitance‐frequency (C‐f) characteristics confirmed the clear expectancy of thermally‐induced variations in capacitance (or dielectric constant) under illumination and dark, respectively. Further, supremacy of the space charge region in MASnI3 based PSC is confirmed from the voltage dependent semicircular nature of the Nyquist plots. Shrink in the semicircles of the Nyquist plots with the increase of the forward bias voltage also confirm the improvement of carriers under forward bias which increase the conductivity and therefore decrease the impedance.

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Theoretical evidence of high power conversion efficiency in double perovskite solar cell device

Cited by 64 publications

References 52 publications

Investigating the theoretical performance ofCs₂TiBr₆‐based perovskite solar cell with La‐dopedBaSnO₃andCuSbS₂as the charge transport layers

Investigating the theoretical performance ofCs₂TiBr₆‐based perovskite solar cell with La‐dopedBaSnO₃andCuSbS₂as the charge transport layers

Design and Comparative Performance Analysis of High‐Efficiency Lead‐Based and Lead‐Free Perovskite Solar Cells

Computational analysis of bandgap tuning, admittance and impedance spectroscopy measurements in lead‐free MASnI ₃ perovskite solar cell device

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Theoretical evidence of high power conversion efficiency in double perovskite solar cell device

Cited by 64 publications

References 52 publications

Investigating the theoretical performance ofCs2TiBr6‐based perovskite solar cell with La‐dopedBaSnO3andCuSbS2as the charge transport layers

Investigating the theoretical performance ofCs2TiBr6‐based perovskite solar cell with La‐dopedBaSnO3andCuSbS2as the charge transport layers

Design and Comparative Performance Analysis of High‐Efficiency Lead‐Based and Lead‐Free Perovskite Solar Cells

Computational analysis of bandgap tuning, admittance and impedance spectroscopy measurements in lead‐free MASnI 3 perovskite solar cell device

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Investigating the theoretical performance ofCs₂TiBr₆‐based perovskite solar cell with La‐dopedBaSnO₃andCuSbS₂as the charge transport layers

Investigating the theoretical performance ofCs₂TiBr₆‐based perovskite solar cell with La‐dopedBaSnO₃andCuSbS₂as the charge transport layers

Computational analysis of bandgap tuning, admittance and impedance spectroscopy measurements in lead‐free MASnI ₃ perovskite solar cell device