Structural and electronic properties of multifunctional carbon composites of organometal halide perovskites

2019 ◽  
Vol 7 (43) ◽  
pp. 25020-25031 ◽  
Author(s):  
Sylwia Klejna
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Carbon Nanostructures ◽  
Electronic Coupling ◽  
Carbon Composites ◽  
Structural And Electronic Properties ◽  
Organometal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Comprehensive Study

Comprehensive study of the electronic coupling at the interface of the organometal halide perovskite thin film and various carbon nanostructures: graphene, graphene oxide, fullerene and fullerenol.

scholarly journals Interaction of light with lead halide perovskites: A review

2019 ◽  
Vol 2 (2) ◽  
pp. 67
Author(s):  
Zhiya Dang ◽  
Duc Anh Dinh
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Light Illumination ◽  
Low Light ◽  
Practical Applications ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
First Time ◽  
Lead Halide ◽  
Sample Environment

Lead halide perovskites are the new rising generation of semiconductor materials due to their unique optical and electrical properties. The investigation of the interaction of halide perovskites and light is a key issue not only for understanding their photophysics but also for practical applications. Hence, tremendous efforts have been devoted to this topic and brunch into two: (i) decomposition of the halide perovskites thin films under light illumination; and (ii) influence of light soaking on their photoluminescence (PL) properties. In this review, we for the first time thoroughly compare the illumination conditions and the sample environment to correlate the PL changes and decomposition of perovskite under light illumination. In the case of vacuum and dry nitrogen, PL of the halide perovskite (MAPbI3–xClx, MAPbBr3–xClx, MAPbI3) thin films decreases due to the defects induced by light illumination, and under high excitations, the thin film even decomposes. In the presence of oxygen or moisture, light induces the PL enhancement of halide perovskite (MAPbI3) thin films at low light illumination, while increasing the excitation, which causes the PL to quench and perovskite thin film to decompose. In the case of mixed halide perovskite ((MA)Pb(BrxI1-x)3) light induces reversible segregation of Br domains and I domains. 

scholarly journals Two-Step Synthesis of Bismuth-Based Hybrid Halide Perovskite Thin-Films

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7827
Author(s):  
Vanira Trifiletti ◽  
Sally Luong ◽  
Giorgio Tseberlidis ◽  
Stefania Riva ◽  
Eugenio S. S. Galindez ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Good Alternative ◽  
Bismuth Iodide ◽  
Earth Abundant ◽  
Low Toxicity ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Scalable Methods ◽  
Lead Halide

Lead halide perovskites have been revolutionary in the last decade in many optoelectronic sectors. Their bismuth-based counterparts have been considered a good alternative thanks to their composition of earth-abundant elements, good chemical stability, and low toxicity. Moreover, their electronic structure is in a quasi-zero-dimensional (0D) configuration, and they have recently been explored for use beyond optoelectronics. A significant limitation in applying thin-film technology is represented by the difficulty of synthesizing compact layers with easily scalable methods. Here, the engineering of a two-step synthesis in an air of methylammonium bismuth iodide compact thin films is reported. The critical steps of the process have been highlighted so that the procedure can be adapted to different substrates and application areas.

The impact of precursor water content on solution-processed organometal halide perovskite films and solar cells

2015 ◽  
Vol 3 (37) ◽  
pp. 19123-19128 ◽  
Author(s):  
Bert Conings ◽  
Aslihan Babayigit ◽  
Tim Vangerven ◽  
Jan D'Haen ◽  
Jean Manca ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Content ◽  
Large Scale ◽  
Photovoltaic Performance ◽  
Scale Production ◽  
Large Scale Production ◽  
Organometal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
The Impact

In this paper, the impact of the water content (up to 10 vol%) in DMF-based precursors on organometal halide perovskites is investigated. The photovoltaic performance is found not to be affected, thus relaxing the conditions for large-scale production of this upcoming photovoltaic technology.

Performance and Stability Improvements in Metal Halide Perovskite with Intralayer Incorporation of Organic Additives

2021 ◽  
Author(s):  
Yanan Li ◽  
Matthew Dailey ◽  
Patrick Lohr ◽  
Adam Printz
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Metal Halide ◽  
Organic Additives ◽  
Semiconducting Materials ◽  
Light Emitting ◽  
Metal Halide Perovskite ◽  
Wide Range ◽  
Halide Perovskites ◽  
Halide Perovskite

Metal halide perovskites are emerging semiconducting materials with a wide range of applications, including photovoltaics, thin-film transistors, and light-emitting diodes. A key advantage of perovskites over more established semiconductor technologies...

The Efficacy of Lewis Affinity Scale Metrics to Represent Solvent Interactions with Reagent Salts in All-Inorganic Metal Halide Perovskite Solutions

2021 ◽  
Author(s):  
Oluwaseun Victor Romiluyi ◽  
Yannick Eatmon ◽  
Ruihao Ni ◽  
Barry P. Rand ◽  
Paulette Clancy
Keyword(s):  
Thin Film ◽  
Metal Halide ◽  
Solution Processing ◽  
Solvent Interactions ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite

Solvents employed in the solution processing of metal halide perovskites are known to play a key role in defining the morphology and properties of the resulting thin film, and thus...

scholarly journals Small-Angle Scattering to Reveal the Colloidal Nature of Halide Perovskite Precursor Solution

2021 ◽  
Author(s):  
Marion Flatken ◽  
Armin Hoell ◽  
Robert Wendt ◽  
Eneli Härk ◽  
Andre Dallmann ◽  
...  
Keyword(s):  
Thin Film ◽  
Low Temperature ◽  
Small Angle ◽  
High Performance ◽  
Low Cost ◽  
Precursor Solution ◽  
Angle Scattering ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Thin Film Devices

Halide perovskites are crystalline semiconductors gaining incremental attention as low-cost, high-performance materials for optoelectronics. Their processing from solution at low temperature is compatible with fast manufacturing of thin-film devices, including...

Optical properties of organometal halide perovskite thin films and general device structure design rules for perovskite single and tandem solar cells

2015 ◽  
Vol 3 (17) ◽  
pp. 9152-9159 ◽  
Author(s):  
Chang-Wen Chen ◽  
Sheng-Yi Hsiao ◽  
Chien-Yu Chen ◽  
Hao-Wei Kang ◽  
Zheng-Yu Huang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Optical Constants ◽  
Structure Design ◽  
Device Structure ◽  
Design Rules ◽  
Tandem Solar Cells ◽  
Organometal Halide Perovskite ◽  
Halide Perovskite ◽  
First Time

The optical constants of a CH3NH3PbI3−xClxperovskite thin film were acquired for the first time.

scholarly journals Study on A-Site Compositional Mixing for the Shear Coating Process of FA-Based Lead Halide Perovskites

2021 ◽  
Vol 59 (5) ◽  
pp. 321-328
Author(s):  
Hansol Kim ◽  
Hyewon Gu ◽  
Minju Song ◽  
Choong-Heui Chung ◽  
Yong-Jun Oh ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Ab Initio Calculations ◽  
Ab Initio ◽  
Perovskite Solar Cells ◽  
Future Research ◽  
Coating Process ◽  
Lead Iodide ◽  
Halide Perovskites ◽  
Halide Perovskite

Halide perovskite solar cells have been attracting tremendous attention as next-generation solar cell materials because of their excellent optical and electrical properties. Formamidinium lead tri-iodide (FAPbI3) exhibits the narrowest band gap among lead iodide perovskites and shows excellent thermal and chemical stability, also. However, the large-area coating of FAPbI3 needed for commercialization has not been successful because of the instability of the black phase of FAPbI3 at ambient temperature. This study presents a compositional engineering direction to control the polymorph of the FAPbI3 thin film for the shear coating processes, without halide mixing. By adopting a hot substrate above 100 oC, our shear coating process can produce the black phase FA-based halide perovskites without halide mixing. We carefully investigate the Cs-FA and MA-FA mixed lead iodide perovskites’ phase stability by combining the study with thin-film fabrication and ab initio calculations. Cs-FA mixing shows promising behaviors for stabilizing α-FAPbI3 (black phase) compared with MA-FA. Stable FA-rich perovskite films cannot be achieved via shear coating processes with MA-FA mixing. Ab initio calculations revealed that Cs-FA mixing is excellent for inhibiting phase decomposition and water incorporation. This study is the first report that FA-based halide perovskite thin films can be made with the shear coating process without MA-Br mixing. We reveal the origin of the stable film formation with Cs-FA mixing, and present future research directions for fabricating FA-based perovskite thin films using shear coating.

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