Performance optimization of back-contact perovskite solar cells with quasi-interdigitated electrodes

Shalenov, Erik O.; Dzhumagulova, K. N.; Ng, Annie; Jumabekov, Askhat N.

doi:10.1016/j.solener.2020.05.034

Cited by 16 publications

(21 citation statements)

References 37 publications

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“…In our previous work, we have shown that a more homogeneous distribution of electric field in the perovskite layer of QIBC PSCs can be obtained for devices with the width of the base unit area that is 2 times smaller (1 μm) than that used in the current work (2 μm). 28 Fabrication of QIDEs for QIBC PSCs are usually done using standard microfabrication methods such as photolithography or natural (microsphere) lithography. 14−20 Making the width of the base unit area smaller might be impractical from the experimental point of view.…”

Section: Resultsmentioning

confidence: 99%

“…It should be noted that the geometrical dimensions used for QIBC PSCs in this work match the optimized dimensions obtained in our previous study. 28 An extremely fine spatial mesh is utilized to allow COMSOL for the computation of the magnitude of time-averaged power flow (Poynting vector) for the entire region of the base unit area of devices at every single of its nodes and across the visible band for wavelengths between 300 and 800 nm with a 10 nm step. It should be noted that the Poynting quantity is normalized by the incoming power (power on the top side of devices) which, in all cases, is kept fixed so that the comparison is fair.…”

Section: Theoretical Approach and Computational Detailsmentioning

confidence: 99%

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Insights on Desired Fabrication Factors from Modeling Sandwich and Quasi-Interdigitated Back-Contact Perovskite Solar Cells

Shalenov

Dzhumagulova

Seitkozhanov

et al. 2021

ACS Appl. Energy Mater.

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A numerical simulation method is used to investigate the optical and electrical properties of both conventional sandwich and quasi-interdigitated back-contact (QIBC) perovskite solar cells (PSCs). The results reveal the fundamental physics of PSCs with different architectures, exhibiting their difference in working principle and device properties. A two-dimensional optical model, which takes into account both the electromagnetic and electronic properties of various device layers, is selected to accurately describe the device optical properties and to achieve more comprehensive simulations of solar cell properties under different device working conditions. Different carrier recombination mechanisms for two kinds of PSC architectures are also compared. The conditions under which the electrical properties of the perovskite photo-absorber layer enable QIBC PSCs to operate competitively or exhibit better device performance compared to the sandwich PSCs are examined in detail. The case of QIBC PSCs with various combinations of charge-selective layers is analyzed to provide an insight into materials selection for achieving high-efficiency QIBC PSCs. It is found that power conversion efficiencies more than 25% can be potentially achieved for CH3NH3PbI3-based QIBC PSCs after careful optimization of materials selection and device fabrication. The findings of this work can be used as a guideline for the design and fabrication of high-performance QIBC PSCs.

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Section: Resultsmentioning

confidence: 99%

Section: Theoretical Approach and Computational Detailsmentioning

confidence: 99%

Insights on Desired Fabrication Factors from Modeling Sandwich and Quasi-Interdigitated Back-Contact Perovskite Solar Cells

Shalenov

Dzhumagulova

Seitkozhanov

et al. 2021

ACS Appl. Energy Mater.

Self Cite

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“…In general, five major areas are being investigated to come up with possible solutions for the problems mentioned above. They include (i) perovskite composition and crystal structure (Luo and Daoud, 2016;Mitchell et al, 2017), (ii) engineering of perovskite growth methods (Ng et al, 2015(Ng et al, , 2018Babayigit et al, 2018;Shen et al, 2018;Hu et al, 2020a), (iii) optimization of carrier transport materials and interfaces (Liu et al, 2017;Hu et al, 2020b,c;Wang et al, 2021), (iv) device architectures (Hanmandlu et al, 2018;Ren et al, 2018;Maxim et al, 2020;Shalenov et al, 2020), and (v) encapsulation (Dong et al, 2016;Fu et al, 2019;Emami et al, 2020). Some comprehensive review papers on those topics have also been published (Jiang et al, 2018;Sajid et al, 2018;Ouyang et al, 2019;Hanmandlu et al, 2020;Hu et al, 2020a;Zhou et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Perspective on Predominant Metal Oxide Charge Transporting Materials for High-Performance Perovskite Solar Cells

Singh

Chu

2021

Front. Mater.

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Nowadays, the power conversion efficiency of organometallic mixed halide perovskite solar cells (PSCs) is beyond 25%. To fabricate highly efficient and stable PSCs, the performance of metal oxide charge transport layers (CTLs) is one of the key factors. The CTLs are employed in PSCs to separate the electrons and holes generated in the perovskite active layer, suppressing the charge recombination rate so that the charge collection efficiency can be increased at their respective electrodes. In general, engineering of metal oxide electron transport layers (ETLs) is found to be dominated in the research community to boost the performance of PSCs due to the resilient features of ETLs such as excellent electronic properties, high resistance to thermal temperature and moisture, ensuring good device stability as well as their high versatility in material preparation. The metal oxide hole transport layers in PSCs are recently intensively studied. The performance of PSCs is found to be very promising by using optimized hole transport materials. This review concisely discusses the evolution of some prevalent metal oxide charge transport materials (CTMs) including TiO2, SnO2, and NiOx, which are able to yield high-performance PSCs. The article begins with introducing the development trend of PSCs using different types of CTLs, pointing out the important criteria for metal oxides being effective CTLs, and then a variety of preparation methods for CTLs as employed by the community for high-performance PSCs are discussed. Finally, the challenges and prospects for future research direction toward scalable metal oxide CTM-based PSCs are delineated.

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“…To further understand the device properties and improve the PCE of the IBC-PSCs, several numerical simulation works have been developed, primarily spearheaded by Bach, Jumabekov, and Ye. [12][13][14][15][16][17][18] Although the PCE reported so far is relatively low, the simulation results predict that IBC-PSCs hold immense potential; the theoretical upper limit of PCE of IBC-PSCs is over 28.27%. [19] More research was extended to investigate the influences of electronic and geometrical parameters on the performance of IBC-PSCs.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the PCE value of conventional structure IBC-PSCs was lower than 10% for the W pitch over 200 μm. [12,13,15] It is critical to design and develop a novel IBC structure to obtain high-efficiency and broad-pitch IBC-PSCs with industrially compatible patterning approaches.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient and Industrially Feasible Interdigitated Back‐Contact Perovskite Solar Cells with Front Carrier Transport Layers Selected Using 2D Simulation

Lin

Xiong

et al. 2021

Solar RRL

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Interdigitated back‐contact (IBC) perovskite solar cells (PSCs) have great potential for highly efficient and low‐cost solar energy conversion. However, their full potential has not been achieved. In particular, there is no practically available front surface and rear contact design for IBC‐PSCs as for the conventional crystalline silicon IBCs, which propose challenges in realizing high efficiency. Herein, innovative quasi‐interdigitated back‐contact (QIBC) PSC designs that enhance the effective lateral transport of carriers are proposed and therefore a realistic wide pitch for back contacting in the range of hundreds of micrometers is allowed. The novel design features implementing an appropriate conductive and well‐passivated carrier transport layer, referred to as a front‐carrier transport layer (FCTL), on the front surface of the QIBC‐PSC. Technology computer‐aided design optical/device simulations are used to investigate the function of the FCTL in increasing the cell performance and achieve 23.23% of power conversion efficiency (PCE) after FCTL design optimizations for a QIBC‐PSC with a rear contact pitch of 200 μm. Further improvement of the PCE over 25% can be potentially achievable by improving the film and passivation quality. This work opens up a new approach to fabricate realistic highly efficient IBC‐PSCs.

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Performance optimization of back-contact perovskite solar cells with quasi-interdigitated electrodes

Cited by 16 publications

References 37 publications

Insights on Desired Fabrication Factors from Modeling Sandwich and Quasi-Interdigitated Back-Contact Perovskite Solar Cells

Insights on Desired Fabrication Factors from Modeling Sandwich and Quasi-Interdigitated Back-Contact Perovskite Solar Cells

Perspective on Predominant Metal Oxide Charge Transporting Materials for High-Performance Perovskite Solar Cells

Highly Efficient and Industrially Feasible Interdigitated Back‐Contact Perovskite Solar Cells with Front Carrier Transport Layers Selected Using 2D Simulation

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