In-depth study of the effect of annealing temperature on the structural, chemical, and optical properties of MAPI thin films prepared by a one-step deposition method

Montano, B.; Diaz, Jose Juan; Koudriavtsev, Iouri; Cosme, Ismael; Korneev, N.; Mansurova, S.

doi:10.1007/s10854-023-10437-3

Cited by 5 publications

(4 citation statements)

References 41 publications

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“…This observation is consistent with previous studies on MAPbI 3 degradation processes. 8,24,31 Furthermore, this finding may also be consistent with the lower Voc observed in device A compared to device B, both made under the same fabrication conditions (blue and red lines in Figure 3). It is well-established in the literature that the decomposition of perovskite films and chemical reactions of the decomposition products with the selective layers (ETL and HTL) or the electrode, 43,44 are associated with a decrease in Voc.…”

Section: Discussionsupporting

confidence: 83%

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Secondary ion mass spectrometry study of organic and inorganic interfaces in methylammonium lead triiodide solar cells

Montano,

Díaz López,

Kudriavtsev

et al. 2023

Organic, Hybrid, and Perovskite Photovoltaics XXIV

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This study focuses on investigating interfaces in perovskite solar cells (PSCs) fabricated by using two different deposition methods. One structure involves all-solution processing, with the photoactive layer spin-coated, and organic semiconductors for the hole and electron transporting layers (HTL and ETL). The other structure incorporates inorganic HTL and ETL layers deposited via magnetron sputtering. We analyze the interfaces using TOF-SIMS and SEM, comparing the two manufacturing approaches to understand their impact on interface quality. Additionally, we explore how different humidity levels during fabrication influence solar cell performance. This research aims to advance the understanding of the correlation between interface quality and the performance of perovskite solar cells.

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Section: Discussionsupporting

confidence: 83%

“…For the deposition of the MAPbI 3 ink, a one-step spin-coating process was employed under N 2 ambient at 4000 rpm for 30 seconds . 31 To enhance the film formation, chlorobenzene was added as an anti-solvent. Subsequently, the film was annealed at 120°C for 10 minutes.…”

Section: Active Layer Preparation and Depositionmentioning

confidence: 99%

Secondary ion mass spectrometry study of organic and inorganic interfaces in methylammonium lead triiodide solar cells

Montano,

Díaz López,

Kudriavtsev

et al. 2023

Organic, Hybrid, and Perovskite Photovoltaics XXIV

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“…As a result of the scanning process that was carried out in a 5 × 5 μm region, it was inferred that surface morphology and roughness enhanced with the thermal annealing. 52 As the annealing temperature increased from 100 to 300 °C, the rootmean-square roughness of the thin films varied from 13 to 93 nm for the pristine films and from 26 to 81 nm for the Mndoped CAIC NC thin films. The increase in the annealing temperature to 300 °C showed a phase shift and the formation of bigger crystals, which were further substantiated in the AFM images.…”

Section: ■ Results and Discussionmentioning

confidence: 98%

“…The two-dimensional images of the thin films of pristine and Mn-doped CAIC NCs are displayed in Figure (a) and (b). As a result of the scanning process that was carried out in a 5 × 5 μm region, it was inferred that surface morphology and roughness enhanced with the thermal annealing . As the annealing temperature increased from 100 to 300 °C, the root-mean-square roughness of the thin films varied from 13 to 93 nm for the pristine films and from 26 to 81 nm for the Mn-doped CAIC NC thin films.…”

Section: Resultsmentioning

confidence: 99%

Temperature-Dependent Structure–Property Relationship of Mn-Doped Cs₂AgInCl₆ Thin Films Impacts Its Application as a Self-Powered UV Photodetector

Lavadiya,

Ahmed,

Barman

et al. 2024

ACS Appl. Electron. Mater.

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Lead-free halide double perovskites (DP) have garnered significant attention as potential substitutes for lead halide systems in optoelectronic applications. In this context, Cs 2 AgInCl 6 (CAIC), a wide and direct bandgap DP, exhibits considerable promise as a material for ultraviolet photodetectors. However, the processing of thin films composed of CAIC nanocrystals (NCs) has demonstrated significant challenges. Herein, we study the temperature-dependent structure−property relationship of CAIC and Mn-doped CAIC NCs in this work. These films were pre-and post annealed at 100−300 °C to determine their effect on self-powered UV photodetectors. X-ray diffraction (XRD) and atomic force microscopy (AFM) data revealed that the perovskite phase of pristine and Mn-doped CAIC NCs remained stable until a specific annealing temperature was reached but significantly changed at 300 °C. Mn-doped samples show phase orientation changes at 150 °C due to lattice dilatation. Broad photoluminescence (PL) spectra are observed due to the emission of self-trapped exciton (STE) states from [AgCl] −5 octahedra deformation, which was strongly dependent on annealing temperatures. AFM, UV−visible absorption, Raman, and time-resolved PL investigations improved our understanding of surface physics, shape, optical properties, and charge carrier lifetimes. Finally, self-powered UV photodetectors were made using the best annealed 150 °C temperature of both pristine and Mn-doped CAIC NCs thin films exhibiting good figures of merits. These devices had responsivities of 0.03 and 0.06 A/W and on/off ratios of 129 and 271, respectively. The photophysical phenomena and device characterizations discussed in this study are anticipated to offer insights into the fundamental understanding and correlation of optoelectronic applications.

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Effect of PEDOT:PSS optical properties at the frontal interface on electrical performance in MAPbI3 perovskite solar cells

Reyes-Molina,

Carrillo-Sendejas,

Mansurova

et al. 2024

Optical Materials

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In-depth study of the effect of annealing temperature on the structural, chemical, and optical properties of MAPI thin films prepared by a one-step deposition method

Cited by 5 publications

References 41 publications

Secondary ion mass spectrometry study of organic and inorganic interfaces in methylammonium lead triiodide solar cells

Secondary ion mass spectrometry study of organic and inorganic interfaces in methylammonium lead triiodide solar cells

Temperature-Dependent Structure–Property Relationship of Mn-Doped Cs₂AgInCl₆ Thin Films Impacts Its Application as a Self-Powered UV Photodetector

Effect of PEDOT:PSS optical properties at the frontal interface on electrical performance in MAPbI3 perovskite solar cells

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In-depth study of the effect of annealing temperature on the structural, chemical, and optical properties of MAPI thin films prepared by a one-step deposition method

Cited by 5 publications

References 41 publications

Secondary ion mass spectrometry study of organic and inorganic interfaces in methylammonium lead triiodide solar cells

Secondary ion mass spectrometry study of organic and inorganic interfaces in methylammonium lead triiodide solar cells

Temperature-Dependent Structure–Property Relationship of Mn-Doped Cs2AgInCl6 Thin Films Impacts Its Application as a Self-Powered UV Photodetector

Effect of PEDOT:PSS optical properties at the frontal interface on electrical performance in MAPbI3 perovskite solar cells

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Product

Resources

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Temperature-Dependent Structure–Property Relationship of Mn-Doped Cs₂AgInCl₆ Thin Films Impacts Its Application as a Self-Powered UV Photodetector