Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation
Toxicity and poor stability remain major barriers to large-scale production of hybrid organic-inorganic lead halide perovskite solar cells. Considering the isoelectronic nature of lead (II) and bismuth (III) ions, stable and non-toxic alternatives for developing photovoltaic devices could potentiall...
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Elsevier
2025-02-01
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| Series: | Optical Materials: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590147824001098 |
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| author | G. Gordillo O.G. Torres C.A. Celis M. Reinoso J I Clavijo |
| author_facet | G. Gordillo O.G. Torres C.A. Celis M. Reinoso J I Clavijo |
| author_sort | G. Gordillo |
| collection | DOAJ |
| description | Toxicity and poor stability remain major barriers to large-scale production of hybrid organic-inorganic lead halide perovskite solar cells. Considering the isoelectronic nature of lead (II) and bismuth (III) ions, stable and non-toxic alternatives for developing photovoltaic devices could potentially be found. Rb3Bi2I9 perovskite films inherently suffer from unavoidable pinhole defects and poor surface morphology, which limit device performance. In this work we explored a dual-source thermal sequential evaporation approach to growth uniform and pinhole-free morphology of Rb3Bi2I9 polycrystalline thin films. The influence of post-deposition annealing in a high-pressure N2 atmosphere on the structural, optical, morphological, and electronic properties of the resulting films was studied experimentally using X-ray diffraction (XRD), optical spectrophotometry, scanning electron microscopy (SEM), and computationally via Density Functional Theory (DFT) calculations. The results revealed that post deposition annealing significantly improves both the morphology and degradation processes of Rb3Bi2I9 films, when they are exposed to environmental conditions for long periods of time. |
| format | Article |
| id | doaj-art-4d061ba2f9224a6db25770b6132e1c19 |
| institution | Kabale University |
| issn | 2590-1478 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Optical Materials: X |
| spelling | doaj-art-4d061ba2f9224a6db25770b6132e1c192025-02-08T05:01:05ZengElsevierOptical Materials: X2590-14782025-02-0125100397Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential EvaporationG. Gordillo0O.G. Torres1C.A. Celis2M. Reinoso3 J I Clavijo4Grupo de Semiconductores y Energía Solar, Departamento de Física, Universidad Nacional de Colombia, 111321, Bogotá, DC, Colombia; Corresponding author.Grupo de Semiconductores y Energía Solar, Departamento de Física, Universidad Nacional de Colombia, 111321, Bogotá, DC, ColombiaGrupo de Semiconductores y Energía Solar, Departamento de Física, Universidad Nacional de Colombia, 111321, Bogotá, DC, ColombiaFac, de Ingeniería, Universidad Estatal de Milagro, Milagro, EcuadorDepartamento de Química, Universidad Nacional de Colombia, 111321, Bogotá, ColombiaToxicity and poor stability remain major barriers to large-scale production of hybrid organic-inorganic lead halide perovskite solar cells. Considering the isoelectronic nature of lead (II) and bismuth (III) ions, stable and non-toxic alternatives for developing photovoltaic devices could potentially be found. Rb3Bi2I9 perovskite films inherently suffer from unavoidable pinhole defects and poor surface morphology, which limit device performance. In this work we explored a dual-source thermal sequential evaporation approach to growth uniform and pinhole-free morphology of Rb3Bi2I9 polycrystalline thin films. The influence of post-deposition annealing in a high-pressure N2 atmosphere on the structural, optical, morphological, and electronic properties of the resulting films was studied experimentally using X-ray diffraction (XRD), optical spectrophotometry, scanning electron microscopy (SEM), and computationally via Density Functional Theory (DFT) calculations. The results revealed that post deposition annealing significantly improves both the morphology and degradation processes of Rb3Bi2I9 films, when they are exposed to environmental conditions for long periods of time.http://www.sciencedirect.com/science/article/pii/S2590147824001098Inorganic perovskitesRb3Bi2I9 thin filmsSequential evaporationOpticalStructural and morphological characterization |
| spellingShingle | G. Gordillo O.G. Torres C.A. Celis M. Reinoso J I Clavijo Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation Optical Materials: X Inorganic perovskites Rb3Bi2I9 thin films Sequential evaporation Optical Structural and morphological characterization |
| title | Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation |
| title_full | Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation |
| title_fullStr | Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation |
| title_full_unstemmed | Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation |
| title_short | Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation |
| title_sort | evaluation of the optical structural morphological and electronic properties of rb3bi2i9 perovskites films prepared by sequential evaporation |
| topic | Inorganic perovskites Rb3Bi2I9 thin films Sequential evaporation Optical Structural and morphological characterization |
| url | http://www.sciencedirect.com/science/article/pii/S2590147824001098 |
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