Study on the Role of Absorption Defect Density, Layer Thickness and Transport Layer Doping Concentration on the Performance of Lead Free Perovskite Solar Cell

2021 ◽  
pp. 25-32
Author(s):  
Priyanka Roy ◽  
Ayush Khare
Keyword(s):  
Solar Cell ◽  
Layer Thickness ◽  
Doping Concentration ◽  
Defect Density ◽  
Perovskite Solar Cell ◽  
Transport Layer ◽  
Lead Free ◽  
Absorption Defect

scholarly journals Modeling and Simulation of Lead-Free Perovskite Solar Cell Using SCAPS-1D

2021 ◽  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
Doping Concentration ◽  
Defect Density ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Lead Free ◽  
Cell Parameters ◽  
Transport Medium

In this work, the effect of some parameters on tin-based perovskite (CH3NH3SnI3) solar cell were studied through device simulation with respect to adjusting the doping concentration of the perovskite absorption layer, its thickness and the electron affinities of the electron transport medium and hole transport medium, as well as the defect density of the perovskite absorption layer and hole mobility of hole transport material (HTM). A device simulator; the one-dimensional Solar Cells Capacitance Simulator (SCAPS‑1D) program was used for simulating the tin-based perovskite solar cells. The current-voltage (J-V) characteristic curve obtained by simulating the device without optimization shows output cell parameters which include; open circuit voltage (Voc) = 0.64V, short circuit current density (Isc) = 28.50mA/, fill factor (FF) = 61.10%, and power conversion efficiency (PCE) = 11.30% under AM1.5 simulated sunlight of 100mW/cm2 at 300K. After optimization, values of the doping concentration, defect density, electron affinity of electron transport material and hole transport material were determined to be: 1.0x1016cm-3, 1.0x1015cm-3, 3.7 eV and 2.3 eV respectively. Appreciable values of solar cell parameters were obtained with Jsc of 31.38 mA/cm2, Voc of 0.84 V, FF of 76.94% and PCE of 20.35%. when compared with the initial device without optimization, it shows improvement of ~1.10 times in Jsc, ~1.80 times in PCE, ~1.31 times in Voc and ~1.26 time in FF. The results show that the lead-free CH3NH3SnI3 perovskite solar cell which is environmentally friendly is a potential solar cell with high theoretical efficiency of 20.35%.

Numerical modeling of planar lead free perovskite solar cell using tungsten disulfide (WS2) as an electron transport layer and Cu2O as a hole transport layer

2020 ◽  
Vol 34 (24) ◽  
pp. 2050258
Author(s):  
Anjan Kumar ◽  
Sangeeta Singh
Keyword(s):  
Solar Cell ◽  
Electron Transport ◽  
Defect Density ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Tungsten Disulfide ◽  
Transport Layer ◽  
Lead Free ◽  
Electron Transport Layer ◽  
Hole Transport Layer

Metal halide-perovskite solar cells have managed to attain soaring heights in power conversion efficiency in the past decade, rising from 3.8% to around 24% in 2019. Formal lead-based perovskites have captivated massive attention because of their then toxic nature and short-term stability of fabricated devices. Therefore, lead-free perovskites have drawn the researcher’s interest in recent years. In this work, we projected a unique planar perovskite structure constituted of [Formula: see text] Tungsten Disulfide [Formula: see text] lead-free perovskite[Formula: see text]. Herein, Tungsten Disulfide (WS2) acts as an electron transport layer (ETL) due to its excellent electron transport capability. The cuprous oxide is used as a hole transport layer (HTL) due to its perfect band alignment with perovskites. The proposed structure is quantitatively analyzed using a solar cell capacitance simulator. The simulation carried out revealed that tin halide perovskite (CH3NH3SnI3) is having the great potential to be an absorbent layer. The proposed configuration demonstrated excellent power configuration efficiency (PCE) of 23% at an optimized thickness of different segments. The impact of neutral defect density and position of defect energy level with respect to active layer on device performance was quantitatively analyzed. The results showed that values of performance parameters ([Formula: see text], FF, [Formula: see text] and PCE) of proposed device configurations are drastically reduced with increasing the total defect density of interfacial and perovskite layers. These simulated results will help the researchers working in the specific area of lead-free perovskite solar cell (LFPSC) fabrication.

scholarly journals Effect of Different HTM Layers and Electrical Parameters on ZnO Nanorod-Based Lead-Free Perovskite Solar Cell for High-Efficiency Performance

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Farhana Anwar ◽  
Rafee Mahbub ◽  
Sakin Sarwar Satter ◽  
Saeed Mahmud Ullah
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Defect Density ◽  
Nanorod Array ◽  
Perovskite Solar Cell ◽  
Lead Free ◽  
Zno Nanorod ◽  
Metal Work Function ◽  
Optimum Parameters ◽  
Efficiency Performance

Simulation has been done using SCAPS-1D to examine the efficiency of CH3NH3SnI3-based solar cells including various HTM layers such as spiro-OMeTAD, Cu2O, and CuSCN. ZnO nanorod array has been considered as an ETM layer. Device parameters such as thickness of the CH3NH3SnI3 layer, defect density of interfaces, density of states, and metal work function were studied. For optimum parameters of all three structures, efficiency of 20.21%, 20.23%, and 18.34% has been achieved for spiro-OMeTAD, Cu2O, and CuSCN, respectively. From the simulations, an alternative lead-free perovskite solar cell is introduced with the CH3NH3SnI3 absorber layer, ZnO nanorod ETM layer, and Cu2O HTM layer.

scholarly journals Analysis of the role of hole transport layer materials to the performance of perovskite solar cell

2018 ◽  
Vol 67 ◽  
pp. 01021 ◽  
Author(s):  
Istighfari Dzikri ◽  
Michael Hariadi ◽  
Retno Wigajatri Purnamaningsih ◽  
Nji Raden Poespawati
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Open Circuit ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

Research in solar cells is needed to maximize Indonesia’s vast solar potential that can reach up to 207.898 MW with an average radiation of 4.8 kWh/m2/day. Organometallic perovskite solar cells (PSCs) have gained immense attention due to their rapid increase in efficiency and compatibility with low-cost fabrication methods. Understanding the role of hole transport layer is very important to obtain highly efficient PSCs. In this work, we studied the effect of Hole Transport Layer (HTL) to the performance of perovskite solar cell. The devices with HTL exhibit substantial increase in power conversion efficiency, open circuit voltage and short circuit current compared to the device without HTL. The best performing device is PSC with CuSCN as HTL layer, namely Voc of 0.24, Isc of 1.79 mA, 0.27 FF and efficiency of 0.09%.

Numerical study of highly efficient tin-based perovskite solar cell with MoS2 hole transport layer

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Muhammad Shafiqul Islam ◽  
Sabrina Rahman ◽  
Adil Sunny ◽  
Md. Ashfaqul Haque ◽  
Md. Suruz Mian ◽  
...  
Keyword(s):  
Solar Cell ◽  
Molybdenum Disulfide ◽  
Numerical Study ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Lead Free ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Highly Efficient

Abstract The present work investigates a tin-based highly efficient perovskite solar cell (PSC) by a solar cell capacitance simulator in one dimension. Molybdenum disulfide is introduced as hole transport layer in the proposed solar cell device structure. The photovoltaic performances of the proposed solar cell are investigated by varying thickness, doping concentration, and bulk defect density of various layers. Furthermore, the operating temperature and the series and shunt resistances are analyzed systematically. A higher conversion efficiency of 25.99% is obtained at the absorber thickness of 2000 nm. The optimum doping density of 1017 cm−3 is estimated for the absorber, electron transport layer (ETL), and hole transport layer (HTL), respectively. The optimum thicknesses of 50 nm, 1000 nm, and 60 nm are also found for the titanium dioxide as ETL, methylammonium tin triiodide (CH3NH3SnI3) as absorber layer, and molybdenum disulfide as HTL, respectively. The efficiency of the proposed lead-free CH3NH3SnI3-based solar cell with the alternative molybdenum disulfide HTL is calculated to be 24.65% with open-circuit voltage of 0.89 V, short-circuit current density of 34.04 mA/cm2, and fill-factor of 81.46% for the optimum parameters of all layers. These findings would contribute to fabricate low-cost, non-toxic, stable, and durable lead-free PSCs for the next generation.

scholarly journals Device Optimization of a Lead-Free Perovskite/Silicon Tandem Solar Cell with 24.4% Power Conversion Efficiency

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3383
Author(s):  
Khaoula Amri ◽  
Rabeb Belghouthi ◽  
Michel Aillerie ◽  
Rached Gharbi
Keyword(s):  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Doping Concentration ◽  
Power Conversion ◽  
Transport Layer ◽  
Lead Free ◽  
Electron Transport Layer ◽  
Tandem Solar Cell ◽  
Whole Cell

In this work, simulations were performed to optimize the parameters of a lead-free perovskite/silicon tandem solar cell for the improved efficiency and stability of commercial devices. The top sub-cell is based on a lead-free perovskite with a large bandgap of 1.8 eV, an electron transport layer of SnO2/PCBM, which is known for its anti-hysteresis effect, and a hole transport layer of NiO to improve stability, whereas the bottom sub-cell is based on n-type silicon to increase the efficiency of the whole cell. First, the two sub-cells were simulated under standalone conditions for calibration purposes. Then, the current matching condition was obtained by optimizing the thicknesses of the absorber layers of both sub-cells and the doping concentration of the back surface field (BSF) layer of the silicon sub-cell. As a result of this optimization phase, thicknesses of 380 nm and 20 µm for the top and bottom sub-cells, respectively, and a doping concentration of 1022 cm–3 were used in the configuration of the tandem cell, yielding a large open-circuit voltage of 1.76 V and a power conversion efficiency of 24.4% for the whole cell. Finally, the effect of the working temperature was evaluated, and the results reveal that the high performance of lead-free perovskite sub-cells is less affected by an increase in temperature compared to lead-based solar cells, such as those based on CH3NH3PbI3 perovskite.

scholarly journals Design of Dopant and Lead-Free Novel Perovskite Solar Cell for 16.85% Efficiency

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2110
Author(s):  
Syed Abdul Moiz ◽  
Ahmed N. M. Alahmadi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Lead Free ◽  
Hole Transport Layer

Halide based perovskite offers numerous advantages such as high-efficiency, low-cost, and simple fabrication for flexible solar cells. However, long-term stability as well as environmentally green lead-free applications are the real challenges for their commercialization. Generally, the best reported perovskite solar cells are composed of toxic lead (Pb) and unstable polymer as the absorber and electron/hole-transport layer, respectively. Therefore, in this study, we proposed and simulated the photovoltaic responses of lead-free absorber such as cesium titanium (IV) bromide, Cs2TiBr6 with dopant free electron phenyl-C61-butyric acid methyl ester (PCBM), and dopant free hole transport layer N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB) for the Ag/BCP/PCBM/Cs2TiBr6/NPB/ITO based perovskite solar cell. After comprehensive optimization of each layer through vigorous simulations with the help of software SCAPS 1D, it is observed that the proposed solar cell can yield maximum power-conversion efficiency up to 16.85%. This efficiency is slightly better than the previously reported power-conversion efficiency of a similar type of perovskite solar cell. We believe that the outcome of this study will not only improve our knowledge, but also triggers further investigation for the dopant and lead-free perovskite solar cell.

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