Influence of annealing temperature on the structural, morphological and optical properties of SnO2 nanoparticles

Habte, Abebe G.; Hone, Fekadu Gashaw; Dejene, F.B.

doi:10.1016/j.physb.2019.411760

Cited by 10 publications

(6 citation statements)

References 47 publications

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“…[ 37–39 ] NH 4 + acting as a weak acid could also contribute to the slight increase in the particle size, since many works suggest that SnO 2 nanoparticles synthesized in less basic condition demonstrate increased sizes. [ 53,54 ]…”

Section: Resultsmentioning

confidence: 99%

Design of SnO₂ Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Gil

Yun

Lim

et al. 2023

Adv Materials Inter

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In order for the perovskite solar cells to be truly commercialized, long-term stability of the device must be guaranteed; hence, the individual layers with each interface is of prominent importance. [10][11][12][13] In this aspect, electron transport layer (ETL) and its interface with the perovskite is one of the important sites, which ultimately determines the performance and the stability of the device, since defects generated in the bulk of ETL or accumulated at the ETL/perovskite interface can both damage the charge extraction property and stability of the device, by trapping photogenerated carriers and providing degradation sites. [14][15][16][17] Moreover, for the typical normal n-i-p type device, the ETL side of the device is constantly exposed to the incident light, which can initiate photoinduced degradation or light-induced thermal stress on the device. [18][19][20] Therefore, it is important to smartly design an ETL that can maintain long-term stability under the operation condition.Tin oxide is one of the most widely used materials for ETL due to its high conductivity and appropriate Fermi energy relative to the perovskite. SnO 2 layer can also be easily fabricated by a simple spin-coating of commercially available nanoparticle-type SnO 2 colloidal dispersion, which results in thin and compact layer of stacked SnO 2 nanoparticles applicable to various device structures. [21][22][23][24][25] Here, defects or degradation sites may arise from the inherent defects from the SnO 2 nanoparticle, dangling bonds at the nanoparticle surface from imperfect film formation, or mismatch between nanoparticles and perovskite lattice. [26][27][28][29] To address these issues, various additive compounds have been incorporated into the SnO 2 layer, ranging from ionic salts to chained organic molecules with specialized functional groups. [30][31][32][33][34][35][36] Another alternative method is to synthesize compact SnO 2 layer by using tin (II) chloride hydrate (SnCl 2 •xH 2 O) as a precursor. [37][38][39] Some research groups have even fabricated bilayer-type SnO 2 ETL to improve the film quality, consisting of bare and additivemodified SnO 2 nanoparticles, or nanoparticle-type and SnCl 2derived SnO 2 . [40][41][42] Despite the modified ETLs show merits of passivating charge-trapping defects, these methods require sequential deposition steps for the fabrication of ETLs with multiple heat treatments at different temperatures, which adds

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Section: Resultsmentioning

confidence: 99%

Design of SnO₂ Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Gil

Yun

Lim

et al. 2023

Adv Materials Inter

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show abstract

“…Radiatively occurs by photon energy emitted from direct recombination of conduction band electrons and valence band holes. Non-radiatively occurs by emitting phonon from recombination of carriers through defect states such as dopant and vacancies in bulk and surface and interface channels in heterostructures particles [103][104][105]. Maximum intensities of PL emission of samples are presented in Fig.…”

Section: 5 Photocatalytic Degradation Of Tcementioning

confidence: 99%

Tuning the band-gap and enhancing the trichloroethylene photocatalytic degradation activities of flower-like Ni-doped SnS2/SnO2 heterostructures by partial oxidation

Afzali

Beydokhti

Khodadadi

et al. 2022

Journal of Environmental Chemical Engineering

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“…Such dyes contribute to a number of environmental problems by potentially introducing cancer-causing toxins into the water systems. Therefore, the presence of such harmful dyes in the The synthesis of SnO 2 nanorods is reported in the present study using a simple chemical co-precipitation method [24,25]. The resulting SnO 2 nanorods have been used to remove methylene blue dye adsorptively and photocatalytically by varying parameters such as pH, initial dye concentration, contact time and catalyst dose, etc.…”

Section: Introductionmentioning

confidence: 98%

Adsorptive and photocatalytic removal of carcinogenic methylene blue dye by SnO2 nanorods: an equilibrium, kinetic and thermodynamics exploration

et al. 2020

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The present study reports a simple co-precipitation approach for the synthesis of SnO 2 nanorods. The SnO 2 nanorods were characterized by XRD, SEM, TEM, EDAX, SAED, and FTIR techniques, to examine their structural, morphological, functional group, and elemental properties. The findings of the SEM and TEM reveal the nanorod like morphology. For the adsorptive and photocatalytic removal of methylene blue dye from their aqueous solution the synthesized SnO 2 nanorods have been used. The effect on adsorptive and the photocatalytic removal capability of SnO 2 nanorods was examined by optimizing the various parameters such as pH, initial dye concentration, contact time and catalyst dose. Tha maximum adsorptive and photocatalytic removal of MB up to the 66% and 94% were obtained at pH = 7 and pH = 2, respectively. Besides, experimental adsorption results were used for the exploration of kinetics and adsorption isotherm (Langmuir and Freundlich), which shows that methylene blue adsorption over SnO 2 nanorods follows the pseudo-second-order kinetics with the rate constant K 2 is 1.1 × 10 −1 (g/mg/min) and obeys the Langmuir isotherm. However, the thermodynamic parameters were studied, indicating that adsorption is spontaneous and favorable. The adsorptive removal is an endothermic process and pointing towards the chemisorptions nature of the process.

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Influence of annealing temperature on the structural, morphological and optical properties of SnO2 nanoparticles

Cited by 10 publications

References 47 publications

Design of SnO₂ Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Design of SnO₂ Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Tuning the band-gap and enhancing the trichloroethylene photocatalytic degradation activities of flower-like Ni-doped SnS2/SnO2 heterostructures by partial oxidation

Adsorptive and photocatalytic removal of carcinogenic methylene blue dye by SnO2 nanorods: an equilibrium, kinetic and thermodynamics exploration

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Influence of annealing temperature on the structural, morphological and optical properties of SnO2 nanoparticles

Cited by 10 publications

References 47 publications

Design of SnO2 Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Design of SnO2 Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Tuning the band-gap and enhancing the trichloroethylene photocatalytic degradation activities of flower-like Ni-doped SnS2/SnO2 heterostructures by partial oxidation

Adsorptive and photocatalytic removal of carcinogenic methylene blue dye by SnO2 nanorods: an equilibrium, kinetic and thermodynamics exploration

Contact Info

Product

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About

Design of SnO₂ Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C

Design of SnO₂ Electron Transport Layer in Perovskite Solar Cells to Achieve 2000 h Stability Under 1 Sun Illumination and 85 °C