Low-temperature processed yttrium-doped SrSnO3 perovskite electron transport layer for planar heterojunction perovskite solar cells with high efficiency

Guo, Heng; Chen, Haiyuan; Zhang, Haiyan; Huang, Xu; Xu, Hao; Wang, Bojun; Li, Yulan; Wang, Liping; Wang, Zhiming

doi:10.1016/j.nanoen.2019.01.059

Cited by 57 publications

(38 citation statements)

References 41 publications

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“…[14][15][16] Perovskites (ABO 3 ) are ternary metal oxides with remarkable physical properties that make them suitable for various technological applications. [17][18][19] Alteration of available perovskites and search for new members to get desired properties had remained an active area of research. The stoichiometric ratio of perovskites can be easily tailored by substituting one or two different types of atoms at A or B sites, resulting in more complex double perovskite (DP) structures, such as A 2 BB′O 6 , AA′BB′O 6 , and AA′B 2 O 6 , with A, A′ mostly belonging to the alkaline earth family, and B and B′ are transition or inner transition elements.…”

Section: Discussionmentioning

confidence: 99%

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Understanding the origin of half‐metallicity and thermophysical properties of ductile La ₂ CuMnO ₆ double perovskite

Mir

Gupta

2019

Int J Energy Res

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Summary For first time, the magneto‐electronic structure with thermoelectric and mechanical properties of lanthanum‐based double perovskite La2CuMnO6 are investigated, using first‐principle methods. Generalized gradient approximation and modified Becke‐Jhonson potentials are integrated to figure out exchange‐correlation potential. The alloy stabilizes in cubic structure with ferromagnetic nature and determined structural parameters are consistent with experimental results. The band profile reveals the half‐metallic character, which is further confirmed by calculated electronic conductivities of up and down spin channels. The effect of pressure on the structural and electronic profile is demonstrated here. The analysis of the transport properties portrays that the highest value of 0.39 is achieved for figure of merit at higher temperatures. The mechanical stability of La2CuMnO6 is established, by determination of elastic constants. The calculated elastic parameters specify the ductile behavior of alloy with high melting temperature. The efficient thermoelectric parameters with half‐metallic and ductile character suggest the likelihood of applications of alloy to design hard spintronic devices or potential thermoelectric materials.

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Section: Discussionmentioning

confidence: 99%

“…Perovskites (ABO 3 ) are ternary metal oxides with remarkable physical properties that make them suitable for various technological applications . Alteration of available perovskites and search for new members to get desired properties had remained an active area of research.…”

Section: Introductionmentioning

confidence: 99%

Understanding the origin of half‐metallicity and thermophysical properties of ductile La ₂ CuMnO ₆ double perovskite

Mir

Gupta

2019

Int J Energy Res

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“…They achieved a PCE of 19.0% with negligible J – V hysteresis. [ 115 ] Zirconium stannate (ZrSnO 4 ) nanoparticles were synthesized by Noh et al. at low temperature, by adjusting the synthesis temperature, the optimized device based on ZrSnO 4 ETL achieved a promising device performance of 16.76% PCE.…”

Section: Inorganic Etmsmentioning

confidence: 99%

Inorganic Electron Transport Materials in Perovskite Solar Cells

Lin

Jones

Yang

et al. 2020

Adv Funct Materials

141

106

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In the past decade, the perovskite solar cell (PSC) has attracted tremendous attention thanks to the substantial efforts in improving the power conversion efficiency from 3.8% to 25.5% for single‐junction devices and even perovskite‐silicon tandems have reached 29.15%. This is a result of improvement in composition, solvent, interface, and dimensionality engineering. Furthermore, the long‐term stability of PSCs has also been significantly improved. Such rapid developments have made PSCs a competitive candidate for next‐generation photovoltaics. The electron transport layer (ETL) is one of the most important functional layers in PSCs, due to its crucial role in contributing to the overall performance of devices. This review provides an up‐to‐date summary of the developments in inorganic electron transport materials (ETMs) for PSCs. The three most prevalent inorganic ETMs (TiO2, SnO2, and ZnO) are examined with a focus on the effects of synthesis and preparation methods, as well as an introduction to their application in tandem devices. The emerging trends in inorganic ETMs used for PSC research are also reviewed. Finally, strategies to optimize the performance of ETL in PSCs, effects the ETL has on J–V hysteresis phenomenon and long‐term stability with an outlook on current challenges and further development are discussed.

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“…Except for the common ternary semiconductor oxides mentioned earlier, SrSnO 3 , [ 156 ] BaTiO 3 , [ 157 ] NaTaO 3 , [ 158 ] and Ti 0.5 Fe 0.5 O x [ 159 ] have also been reported in PSCs. In summary, ternary semiconductor oxides seem to induce faster crystallization, high transparency, and better surface coverage for perovskite layers.…”

Section: Preparation and Characteristics Of Electron Transport Materialsmentioning

confidence: 99%

“…The results showed that the moderate amount of Y/Ti molar ratio could increase the density of nanorods, improve the carrier injection and transport at the interface, and finally achieve an optimal PCE of 18.11%. Very recently, Guo et al [ 156 ] prepared Y 3+ –SrSnO 3 as an ETL via a simple solution‐processed method in PSCs (Figure 12e). It was found that Y 3+ doping presented higher electron conductivity and more proper band alignment with the perovskite layer, which would further enhance the photovoltaic parameters of PSCs with negligible hysteresis (Figure 12f).…”

Section: Doping Of Semiconductor Oxides Etlsmentioning

confidence: 99%

Doping in Semiconductor Oxides‐Based Electron Transport Materials for Perovskite Solar Cells Application

et al. 2021

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From the perspective of the device structure of perovskite solar cells (PSCs), the electron transport layer is one of the essential components and plays a significant role in suppressing carrier recombination. Furthermore, its decisiveness is related to the quality of perovskite film, the rapid interface carrier extraction, and the bandgap alignment. However, the deficiency of the semiconductor oxides based electron transport materials, especially for most studied TiO2, is that their carrier mobility is one to three orders of magnitude lower than the most commonly used hole transport materials, leading to an imbalanced carrier flux and unpredicted hysteresis. Doping new ions are the most effective ways to improve electron mobility and tune the bandgap, while the fundamental mechanism of doping in the majority of cases are still lacking. Herein, the doping effect on semiconductor oxides is reviewed and emphasized by classifying the doping ions according to the critical factors of lattice optimization, a carrier transporting improvement, and interface modification. This review is the first systematic summary of the ion doping characteristics in oxide electron transport layers of PSCs. Finally, the implementation of doping ions in electron transport materials is briefly discussed for further enhancing the photovoltaic performance of PSCs.

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Low-temperature processed yttrium-doped SrSnO3 perovskite electron transport layer for planar heterojunction perovskite solar cells with high efficiency

Cited by 57 publications

References 41 publications

Understanding the origin of half‐metallicity and thermophysical properties of ductile La ₂ CuMnO ₆ double perovskite

Understanding the origin of half‐metallicity and thermophysical properties of ductile La ₂ CuMnO ₆ double perovskite

Inorganic Electron Transport Materials in Perovskite Solar Cells

Doping in Semiconductor Oxides‐Based Electron Transport Materials for Perovskite Solar Cells Application

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Low-temperature processed yttrium-doped SrSnO3 perovskite electron transport layer for planar heterojunction perovskite solar cells with high efficiency

Cited by 57 publications

References 41 publications

Understanding the origin of half‐metallicity and thermophysical properties of ductile La 2 CuMnO 6 double perovskite

Understanding the origin of half‐metallicity and thermophysical properties of ductile La 2 CuMnO 6 double perovskite

Inorganic Electron Transport Materials in Perovskite Solar Cells

Doping in Semiconductor Oxides‐Based Electron Transport Materials for Perovskite Solar Cells Application

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Understanding the origin of half‐metallicity and thermophysical properties of ductile La ₂ CuMnO ₆ double perovskite

Understanding the origin of half‐metallicity and thermophysical properties of ductile La ₂ CuMnO ₆ double perovskite