Electron transport layer-free planar perovskite solar cells: Further performance enhancement perspective from device simulation

Huang, Like; Sun, Xiaoxiang; Chang, Li; Xu, Rui; Xu, Jie; Du, Yangyang; Wu, Yuxiang; Ni, Jian; Cai, Hongkun; Li, Juan; Hu, Ziyang

doi:10.1016/j.solmat.2016.08.025

Cited by 200 publications

(110 citation statements)

References 43 publications

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“…From the results of the simulations, it can be summarized that ZnO nr/CH 3 NH 3 SnI 3 /Cu 2 O PSC structure is a potential alternative for the third generation solar cell which can be reasonably efficient and inexpensive. For further improvement of performance, other perovskite materials such as CH 3 NH 3 SnI 3−x Br x (x = 0, 1, 2, and 3) can be used as an absorber layer [24]. Experimental studies are needed for extensive investigation regarding our proposed PSC structure.…”

Section: Resultsmentioning

confidence: 99%

“…Values of parameters used for the simulation of both the structures are based on experimental study, literature values, or in some cases reasonable estimation in accord with the simulation procedure [8,11,[21][22][23][24]. Figure 10 shows the device structure of methylammonium lead triiodide PSC structure suggested by Lee et al [20] along with our proposed Pb-free ZnO nanorod-based PSC.…”

Section: Comparison Between Typical Psc Andmentioning

confidence: 94%

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

Anwar

Mahbub

Satter

et al. 2017

International Journal of Photoenergy

200

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Simulation has been done using SCAPS-1D to examine the efficiency of CH 3 NH 3 SnI 3 -based solar cells including various HTM layers such as spiro-OMeTAD, Cu 2 O, and CuSCN. ZnO nanorod array has been considered as an ETM layer. Device parameters such as thickness of the CH 3 NH 3 SnI 3 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, Cu 2 O, and CuSCN, respectively. From the simulations, an alternative lead-free perovskite solar cell is introduced with the CH 3 NH 3 SnI 3 absorber layer, ZnO nanorod ETM layer, and Cu 2 O HTM layer.

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Section: Resultsmentioning

confidence: 99%

Section: Comparison Between Typical Psc Andmentioning

confidence: 94%

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

Anwar

Mahbub

Satter

et al. 2017

International Journal of Photoenergy

200

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“…Figure shows schematic of a planar p‐i‐n PVSC, which was simulated by the SCAPS‐1D software (version 3.3.03) to solve Poisson and continuity equations for solar cell simulation . The device was illuminated under AM1.5G spectrum (1000 W/m 2 ; T = 300°K).…”

Section: Methodsmentioning

confidence: 99%

“…Other parameters used for all layers include effective density of states in the conduction and valence band of 2.2 × 10 18 and 1.8 × 10 19 cm −3 , respectively; electron and holes thermal velocity of 1 × 10 7 cm s −1 ; electron and hole‐capture cross‐section of 2 × 10 −14 cm 2 ; and natural‐type defects located at mid‐gap with a Gaussian‐type energetic distribution and characteristic energy of 0.1 eV . To calculate absorption coefficient spectra in the software, the equation of α ( E ) = A α ( E – E g ) 1/2 was used, where A was considered to be 10 5 cm −1 .…”

Section: Methodsmentioning

confidence: 99%

Numerical Study of Cu₂O, SrCu₂O₂, and CuAlO₂ as Hole‐Transport Materials for Application in Perovskite Solar Cells

Shasti

Mortezaali

2019

Physica Status Solidi (a)

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Herein, the application of Cu2O, SrCu2O2, and CuAlO2 as the hole‐transport materials (HTMs) in perovskite solar cells (PVSCs) using solar cell capacitance simulator (SCAPS‐1D) software, is numerically investigated. The effects of various parameters such as the perovskite layer thickness, the defect density of perovskite and interfaces, acceptor density of HTM and valance band offset of HTM/perovskite interface on device performance are studied. According to the simulation outcomes, the SrCu2O2 and CuAlO2 known as p‐type transparent conductive oxide are introduced as promising HTMs for fabrication of highly stable and efficient PVSCs. The Cu2O‐based devices exhibit the low power‐conversion efficiency (PCE) of 17.38% whereas, compared with 2,2′,7,7′‐tetrakis‐(N,N‐di‐4‐methoxyphenylamino)‐9,9′‐spirobifluorene (Spiro‐OMeTAD)‐based devices (PCE = 19.23%), the SrCu2O2 and CuAlO2 based‐devices show an enhanced PCE of 19.67% and 19.82%, respectively, under the hole‐transport layer (HTL) side illumination. This improvement can be attributed to lower light absorption in the HTL for devices based on SrCu2O2 and CuAlO2 than Cu2O due to wider bandgap which is formed.

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“…For HTL, it can extract the holes from i layer by hole flow or injection with energetic favorable energy level alignment at the i-p interface. [52] On the other hand, the widely used high temperature processed TiO 2 based ETL encountered process compatibility issues in flexible application and stability issues due to its UV photocatalytic degradation effect. Some studies have shown that the V oc of PSCs depends on the splitting degree between Fermi level of perovskite and HTL.…”

Section: Working Principle Of Pscs From a Heterojunction Point Of Viewmentioning

confidence: 99%

Simple, Robust, and Going More Efficient: Recent Advance on Electron Transport Layer‐Free Perovskite Solar Cells

Huang

2019

Advanced Energy Materials

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Perovskite solar cells (PSCs) have shown great potential for photovoltaic applications with their unprecedented power conversion efficiency advancement. Such devices generally have a complex structure design with high temperature processed TiO2 as the electron transport layer (ETL). Further careful design of device configuration to fully tap the potentials of perovskite materials is expected. Particularly, for the practical application of PSCs, it is crucial to simplify their device structures thus the associated manufacturing process and cost while maintaining their efficiency to be comparable with the conventional devices. But how simple is simple? ETL‐free PSCs promise the simplest structured, thus simple manufacturing processes and low cost large area PSCs in practical applications. They can also help the further exploration of the great potential of perovskite materials and understanding the working principle of PSCs. Within this review, the evolution of the PSC is outlined by discussing the recent advances in the simplification of device configuration and processes for cost effective, highly efficient, and robust PSCs, with a focus on ETL‐free PSCs. Their advancement, key issues, working mechanism, existing problems, and future performance enhancements. This review aims to promote the future development of low cost and robust ETL‐free PSCs toward more efficient power output.

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Electron transport layer-free planar perovskite solar cells: Further performance enhancement perspective from device simulation

Cited by 200 publications

References 43 publications

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

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

Numerical Study of Cu₂O, SrCu₂O₂, and CuAlO₂ as Hole‐Transport Materials for Application in Perovskite Solar Cells

Simple, Robust, and Going More Efficient: Recent Advance on Electron Transport Layer‐Free Perovskite Solar Cells

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Electron transport layer-free planar perovskite solar cells: Further performance enhancement perspective from device simulation

Cited by 200 publications

References 43 publications

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

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

Numerical Study of Cu2O, SrCu2O2, and CuAlO2 as Hole‐Transport Materials for Application in Perovskite Solar Cells

Simple, Robust, and Going More Efficient: Recent Advance on Electron Transport Layer‐Free Perovskite Solar Cells

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Numerical Study of Cu₂O, SrCu₂O₂, and CuAlO₂ as Hole‐Transport Materials for Application in Perovskite Solar Cells