Boosting efficiency up to 25% for HTL-free carbon-based perovskite solar cells by gradient doping using SCAPS simulation

Lin, Lingyan; Li, Ping; Kang, Zhenjing; Yan, Qiong; Xiong, Hao; Lien, Shui−Yang; Zhang, Peng; Qiu, Yu

doi:10.1016/j.solener.2020.12.059

Cited by 57 publications

(21 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher excess carrier density present at the CCSCNCs/TiO 2 interface leads to a higher recombination rate. The difference between the two interfaces we obtained is consistent with the previous literature [ 50 , 51 ]. Considering that defects are inevitable in the actual interface, relatively good performance can be obtained when the defect density is less than 10 9 cm −3 .…”

Section: Resultssupporting

confidence: 92%

Design and Numerical Investigation of a Lead-Free Inorganic Layered Double Perovskite Cs4CuSb2Cl12 Nanocrystal Solar Cell by SCAPS-1D

Yang

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

In the last decade, perovskite solar cells have made a quantum leap in performance with the efficiency increasing from 3.8% to 25%. However, commercial perovskite solar cells have faced a major impediment due to toxicity and stability issues. Therefore, lead-free inorganic perovskites have been investigated in order to find substitute perovskites which can provide a high efficiency similar to lead-based perovskites. In recent studies, as a kind of lead-free inorganic perovskite material, Cs4CuSb2Cl12 has been demonstrated to possess impressive photoelectric properties and excellent environmental stability. Moreover, Cs4CuSb2Cl12 nanocrystals have smaller effective photo-generated carrier masses than bulk Cs4CuSb2Cl12, which provides excellent carrier mobility. To date, there have been no reports about Cs4CuSb2Cl12 nanocrystals used for making solar cells. To explore the potential of Cs4CuSb2Cl12 nanocrystal solar cells, we propose a lead-free perovskite solar cell with the configuration of FTO/ETL/Cs4CuSb2Cl12 nanocrystals/HTL/Au using a solar cell capacitance simulator. Moreover, we numerically investigate the factors that affect the performance of the Cs4CuSb2Cl12 nanocrystal solar cell with the aim of enhancing its performance. By selecting the appropriate hole transport material, electron transport material, thickness of the absorber layer, doping density, defect density in the absorber, interface defect density, and working temperature point, we predict that the Cs4CuSb2Cl12 nanocrystal solar cell with the FTO/TiO2/Cs4CuSb2Cl12 nanocrystals/Cu2O/Au structure can attain a power conversion efficiency of 23.07% at 300 K. Our analysis indicates that Cs4CuSb2Cl12 nanocrystals have great potential as an absorbing layer towards highly efficient lead-free all-inorganic perovskite solar cells.

show abstract

Section: Resultssupporting

confidence: 92%

Design and Numerical Investigation of a Lead-Free Inorganic Layered Double Perovskite Cs4CuSb2Cl12 Nanocrystal Solar Cell by SCAPS-1D

Yang

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…In the recent years, significant interests of photovoltaic research are also shifted towards the numerical simulation study for optimization and investigation of various physical parameters. 41,42 The present study utilized SCAPS-1D simulation software developed by University of Gent to identify the optoelectronic performance of PSCs. 43 This software follows three primary basic equations (a) Poisson (b) electron continuity (c) and hole continuity equations to solve the photovoltaic problems, are listed below.…”

Section: Device Configuration and Simulation Methodologymentioning

confidence: 99%

Section: Device Configuration and Simulation Methodologymentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

“…At the end of this section, a comparison between the PCE for single-junction PSCs of the initial design, the optimized PSC without ETL, and other researchers' work is shown in Table 2. ETM/HTM PCE (%) TiO2/CuI [44] 21.32 TiO2/CuI [45] 21.76 ZnOS/CuI [45] 26.11 ZnOS/Cu2O [11] 25.71 ZnOS/Cu2O [11] 30.82 PCBM/Cu2O [46] 19.61 PEDOT:PSS/HATNT [47] 18.1% PEDOT:PSS/TDTP [48] 18.2% TiO2/- [49] 25.15 ZnOS/Cu2O [initial] 29.34 -/Cu2O [optimized] 33.45…”

Section: Temperature Effect and Comparison Of Pcesmentioning

confidence: 99%

“…Consequently, the chosen value of the designed GeTe sub-cell defect density was 10 14 (1/cm 3 ), which is a relatively high and more practical value. 19.61 PEDOT:PSS/HATNT [47] 18.1% PEDOT:PSS/TDTP [48] 18.2% TiO 2 /- [49] 25.…”

Section: The Bottom Sub-cellmentioning

confidence: 99%

High-Efficiency Electron Transport Layer-Free Perovskite/GeTe Tandem Solar Cell: Numerical Simulation

et al. 2022

View full text Add to dashboard Cite

The primary purpose of recent research has been to achieve a higher power conversion efficiency (PCE) with stable characteristics, either through experimental studies or through modeling and simulation. In this study, a theoretical analysis of an efficient perovskite solar cell (PSC) with cuprous oxide (Cu2O) as the hole transport material (HTM) and zinc oxysulfide (ZnOS) as the electron transport material (ETM) was proposed to replace the traditional HTMs or ETMs. In addition, the impact of doping the perovskite layer was investigated. The results show that the heterostructure of n-p PSC without an electron transport layer (ETL) could replace the traditional n-i-p structure with better performance metrics and more stability due to reducing the number of layers and interfaces. The impact of HTM doping and thickness was investigated. In addition, the influence of the energy gap of the absorber layer was studied. Furthermore, the proposed PSC without ETL was used as a top sub-cell with germanium-telluride (GeTe) as a bottom sub-cell to produce an efficient tandem cell and boost the PCE. An ETL-free PSC/GeTe tandem cell is proposed for the first time to provide an efficient and stable tandem solar cell with a PCE of 45.99%. Finally, a comparison between the performance metrics of the proposed tandem solar cell and those of other recent studies is provided. All the simulations performed in this study are accomplished by using SCAPS-1D.

show abstract

Boosting efficiency up to 25% for HTL-free carbon-based perovskite solar cells by gradient doping using SCAPS simulation

Cited by 57 publications

References 24 publications

Design and Numerical Investigation of a Lead-Free Inorganic Layered Double Perovskite Cs4CuSb2Cl12 Nanocrystal Solar Cell by SCAPS-1D

Design and Numerical Investigation of a Lead-Free Inorganic Layered Double Perovskite Cs4CuSb2Cl12 Nanocrystal Solar Cell by SCAPS-1D

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

High-Efficiency Electron Transport Layer-Free Perovskite/GeTe Tandem Solar Cell: Numerical Simulation

Contact Info

Product

Resources

About

Boosting efficiency up to 25% for HTL-free carbon-based perovskite solar cells by gradient doping using SCAPS simulation

Cited by 57 publications

References 24 publications

Design and Numerical Investigation of a Lead-Free Inorganic Layered Double Perovskite Cs4CuSb2Cl12 Nanocrystal Solar Cell by SCAPS-1D

Design and Numerical Investigation of a Lead-Free Inorganic Layered Double Perovskite Cs4CuSb2Cl12 Nanocrystal Solar Cell by SCAPS-1D

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

High-Efficiency Electron Transport Layer-Free Perovskite/GeTe Tandem Solar Cell: Numerical Simulation

Contact Info

Product

Resources

About

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