Deposition of zinc oxide as an electron transport layer in planar perovskite solar cells by spray and SILAR methods comparable with spin coating

Dehghan, Mahdieh; Behjat, Abbas

doi:10.1039/c9ra01839e

Cited by 58 publications

(26 citation statements)

References 47 publications

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“…They are also exceptionally versatile and have an incredibly wide range of applications including the development of lasers 8 and light emitting diodes (LEDs) 9,10 . They can also serve as an electron transport layers (ETL) in solar cells particularly in perovskite 11 and organic cells 12 and they have also been used in the manufacturing of core‐shell NPs with fine‐tuned 13 and multifunctional properties 14 . A particularly novel application for them is green chemistry 15 .…”

Section: Introductionmentioning

confidence: 99%

Influence of back donation effects on the structure of ZnO nanoclusters

2020

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The structure and properties of ZnO quantum dots is a very popular and rapidly growing field of research for which accurate quantum calculations are challenging to perform. Since the dependence between system size and wall time scales nonlinearly, certain compromises have to be made. A particularly important limiting factor is the size of the basis used, this is especially the case if accurate large calculations are to be carried out. In our work, we discovered that an important O(2p)->Zn(4p) back donation, which greatly influences the strength of the Zn O bond, can be reproduced only if diffuse functions are added to the basis set. We further tested the basis dependence for the magic-sized wurtzite nanophase ZnO clusters which were previously shown to be able to accurately reproduce the magnetically doped II-IV Qdots. In this work, we outline the minimal basis sets required to properly describe Zn O bonds in a nanocluster. It was demonstrated that the rock salt nanophase is incorrectly stabilized if a basis set does not contain sufficiently diffuse functions while the correct wurtzite phase is stabilized when diffuse functions are added. This tendency, similar to that in the ZnO dimer case, was shown to stem from the incorrect lack of Zn(4p) electron density in calculations when using the diffuse-free basis set.

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Section: Introductionmentioning

confidence: 99%

Influence of back donation effects on the structure of ZnO nanoclusters

2020

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“…Over all three lms, the major peak is at about 345 nm but with a little shi in intensity. 9 By comparing the three coated lms, we observe that the ZnO spin-coating at 5000 rpm had less absorbance and, thus, more transparency than the other two lms. According to the UV-vis plots and the FESEM images, the optical transmittance of the three lms would decrease with an increase in their particle size during the coating process.…”

Section: Zno Thin Lms Analysismentioning

confidence: 90%

“…This material is sandwiched between the electron transport material (ETM) and HTM. 9 However, it is noteworthy that all PSC devices employ noble metals as the CE in tandem with the HTM working as the electron blocking material, leading to high-costs and instability issues. 10 The HTM is highly expensive at present and would restrict its use in many applications.…”

Section: Introductionmentioning

confidence: 99%

High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

Mohammed

2020

RSC Adv.

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“… 27 − 29 It is an earth-abundant, non-toxic, and wide band gap n-type IMO with high electron mobility. 30 The energy band alignment of n-type ZnO is suitably matched with p-type CuO. 31 , 32 Therefore, ZnO could be a promising electron transport layer (ETL) for the CuO-based solar cells.…”

Section: Introductionmentioning

confidence: 99%

Role of a Solution-Processed V₂O₅ Hole Extracting Layer on the Performance of CuO-ZnO-Based Solar Cells

2021

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In this research, a heterostructure of the CuO-ZnO-based solar cells has been fabricated using low-cost, earth-abundant, non-toxic metal oxides by a low-cost, low-temperature spin coating technique. The device based on CuO-ZnO without a hole transport layer (HTL) suffers from poor power conversion efficiency due to carrier recombination on the surface of CuO and bad ohmic contact between the metal electrode and the CuO absorber layer. The main focus of this research is to minimize the mentioned shortcomings by a novel idea of introducing a solution-processed vanadium pentoxide (V 2 O 5 ) HTL in the heterostructure of the CuO-ZnO-based solar cells. A simple and low-cost spin coating technique has been investigated to deposit V 2 O 5 onto the absorber layer of the solar cell. The influence of the V 2 O 5 HTL on the performance of CuO-ZnO-based solar cells has been investigated. The photovoltaic parameters of the CuO-ZnO-based solar cells were dramatically enhanced after insertion of the V 2 O 5 HTL. V 2 O 5 was found to enhance the open-circuit voltage of the CuO-ZnO-based solar cells up to 231 mV. A detailed study on the effect of defect properties of the CuO absorber layer on the device performance was theoretically accomplished to provide future guidelines for the performance enhancement of the CuO-ZnO-based solar cells. The experimental results indicate that solution-processed V 2 O 5 could be a promising HTL for the low-cost, environment-friendly CuO-ZnO-based solar cells.

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Deposition of zinc oxide as an electron transport layer in planar perovskite solar cells by spray and SILAR methods comparable with spin coating

Abstract: We have examined the versatility of spray and SILAR coating methods in fabricating mass produced low cost efficient planar perovskite solar cells.

Cited by 58 publications

References 47 publications

Influence of back donation effects on the structure of ZnO nanoclusters

Influence of back donation effects on the structure of ZnO nanoclusters

High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

Role of a Solution-Processed V₂O₅ Hole Extracting Layer on the Performance of CuO-ZnO-Based Solar Cells

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Deposition of zinc oxide as an electron transport layer in planar perovskite solar cells by spray and SILAR methods comparable with spin coating

Abstract: We have examined the versatility of spray and SILAR coating methods in fabricating mass produced low cost efficient planar perovskite solar cells.

Cited by 58 publications

References 47 publications

Influence of back donation effects on the structure of ZnO nanoclusters

Influence of back donation effects on the structure of ZnO nanoclusters

High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

Role of a Solution-Processed V2O5 Hole Extracting Layer on the Performance of CuO-ZnO-Based Solar Cells

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Product

Resources

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Role of a Solution-Processed V₂O₅ Hole Extracting Layer on the Performance of CuO-ZnO-Based Solar Cells