SnO2/ZnO Heterostructure as an Electron Transport Layer for Perovskite Solar Cells

Albuquerque, Diego Aparecido Carvalho; Ramos, Raul; Ireno, Caio Eduardo do Prado; Martins, Everson; Durrant, Steven F.; Bortoleto, J. R. R.

doi:10.1590/1980-5373-mr-2021-0050

Cited by 8 publications

(3 citation statements)

References 25 publications

(43 reference statements)

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“…The maximum solar cell parameter values such as V oc , J sc , FF and η were recorded at 1.248533V, 31.35351045mA/cm 2 84.8548% and 33.2172%, respectively. These agreed with [35], experimentally, which revealed that, SnO 2 was deposited at a rate of around 2 nm/min, and its thickness ranged from ~30 to ~180 nm. Also, [36]showed that the thickness of the ETM signi cantly in uences solar cell optimization.…”

Section: Resultssupporting

confidence: 90%

Optimization of Organic-Inorganic Perovskite Solar Cell Layers

Hussain

Hassan

Abed

2022

Preprint

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Obtaining cheap Electronic Transparent Materials (ETM) and Hole Transparent Materials (HTM) is an important challenge for researchers in perovskite solar cells. we used the SCAPS software in order to determine the properties of CH3NH3SnI3-based solar cells with different ETM and HTM layers, such as (IGZO, SnO2, TiO2, ZnO) and (Spiro-OMeTAD, NiO, Cu2O, and CuO), respectively. Our results predict that among these ETMs, the SnO2 is the most promising to result in high photovoltaic (PV) efficiency in combination with Spiro-OMeTAD based HTM. In addition the perovskite absorber's thicknesses are optimized to achieve maximum photovoltaic efficiency. In order to increase efficiency, layer thickness in cell structures can be optimized by fixing the thickness of the first two layers while altering the thickness of the third. The perovskite solar cell's planar structure consists of ETM (SnO2)/perovskite absorber (CH3NH3SnI3) / HTM (Spiro-OMeTAD)/ and Gold (Au) as a back contact. Also, it improved the solar cell performance by optimizing the absorber thickness, which was 1 µm. With these considerations, the power conversion efficiency of 33.2698% is obtained. Also, we explore the effect of the defect at the perovskite/SnO2 interface on solar cell performance.

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Section: Resultssupporting

confidence: 90%

Optimization of Organic-Inorganic Perovskite Solar Cell Layers

Hussain

Hassan

Abed

2022

Preprint

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“…This preparation method is simple and effective, but the growth time of SnO 2 thin shells is up to 48 h, which is not suitable for mass production. ZnO possesses optical and electrical properties similar to those of SnO 2 , and it is known that the metal activity of Zn is more potent than that of Sn, which means that Zn is much more easily oxidized compared with Sn under the same conditions. Therefore, the growth of ZnO shells on the outer layer of the AgNWs is expected to take a shorter time than that of SnO 2 shells.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin Ag@ZnO Core–Shell Nanowires for Stable Flexible Transparent Conductive Films

Jia,

Yang,

Zhao

et al. 2023

ACS Appl. Electron. Mater.

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Silver nanowires (AgNWs) have received much attention from researchers for their superior optoelectronic properties and are thought to be the most potential substitute for indium−tin oxide. However, the poor stability of the AgNW network when exposed to the atmospheric environment for a long time is a pivotal problem. The surface of the AgNW is easily oxidized, and the NW scale is too small, accelerating the degradation mechanism of Ag, which is limited in practical applications. In this study, a simple and inexpensive solution approach is innovatively proposed to prepare ultrathin Ag@ZnO NW networks with core−shell structure to improve the thermal, electrical, and chemical stability of AgNWs. The formed Ag@ZnO NW network has a high transmission of 81% with a low sheet resistance of 7.5 Ω/sq. More importantly, the Ag@ZnO NW network can withstand high temperatures up to 280 °C without performance degradation. In addition, the Ag@ZnO NW network shows excellent thermal and chemical stability and maintains the original performance under harsh conditions such as high temperature, high relative humidity, ultraviolet ozone, strong oxidants (Na 2 S), and salinity (NaCl). Finally, the application of Ag@ZnO NW flexible transparent conductive electrodes (FTCEs) in an electrochromic device is successfully demonstrated to verify the applicability of Ag@ZnO NW FTCEs, and the electrochromic device has cyclability and quick responsiveness.

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“…Organic–inorganic perovskite materials (such as CH 3 NH 3 PbI 3 = MAPbI 3 ) have been successfully used in solar cells applications because of their wide absorption, high light absorption coefficient in the visible region, high ambipolar conductivity, long hole/electron diffusion length, suitable and tunable band gap, and excellent carrier transportation 1 , 2 . However, several studies have shown that the performance of perovskite solar cells (PSCs) depends on factors beyond the active layer, such as electron transfer layer (ETL) optimization 3 . The electron transfer layer plays a vital role in high performance PSCs, which increases the directional charge transfer of perovskite materials, and reduces the recombinant charge 4 .…”

Section: Introductionmentioning

confidence: 99%

SnO2@ZnO nanocomposites doped polyaniline polymer for high performance of HTM-free perovskite solar cells and carbon-based

Arjmand

Golshani

Maghsoudi

et al. 2022

Sci Rep

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Herein, at first, green SnO2@ZnO nanocomposites were synthesized using Calotropis plant extract as an electron transfer material (ETM) to fabricate low-temperature-processed perovskite solar cells (PSCs). Then, the polyaniline (PANI) polymer was applied as an efficient additive to improve perovskite film quality. Under the effects of the small content of PANI additive, the quality of perovskite films is enhanced, which showed higher crystallinity in (110) crystal plane; also, the perovskite grains were found to be enlarged from 342 to 588 nm. The power conversion efficiency (PCE) of the prepared PSCs with SnO2@ZnO.PANI nanocomposites electron transfer layer (ETL) increased by 3.12%, compared with the PCE of SnO2@ZnO nanocomposites. The perovskite devices using SnO2@ZnO.PANI nanocomposites ETL have shown good stability during 480 h of tests. Furthermore, the optimal PSCs were fabricated by the mp-TiO2/SnO2@ZnO.PANI nanocomposites as ETL, which has a power conversion efficiency of 15.45%. We expect that these results will boost the development of low-temperature ETL, which is essential for the commercializing of high-performance, stable, and flexible perovskite solar cells.

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SnO2/ZnO Heterostructure as an Electron Transport Layer for Perovskite Solar Cells

Cited by 8 publications

References 25 publications

Optimization of Organic-Inorganic Perovskite Solar Cell Layers

Optimization of Organic-Inorganic Perovskite Solar Cell Layers

Ultrathin Ag@ZnO Core–Shell Nanowires for Stable Flexible Transparent Conductive Films

SnO2@ZnO nanocomposites doped polyaniline polymer for high performance of HTM-free perovskite solar cells and carbon-based

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