Articles with "pbi2" as a keyword



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Detrimental Effect of Unreacted PbI2 on the Long-Term Stability of Perovskite Solar Cells.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.201905035

Abstract: Excess/unreacted lead iodide (PbI2 ) has been commonly used in perovskite films for the state-of-the-art solar cell applications. However, an understanding of intrinsic degradation mechanisms of perovskite solar cells (PSCs) containing unreacted PbI2 has been… read more here.

Keywords: pbi2; detrimental effect; perovskite solar; unreacted pbi2 ... See more keywords
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Multifunctional Metal-organic Frameworks Capsules Modulate Reactivity of Lead Iodide toward Efficient Perovskite Solar Cells with Ultraviolet Resistance.

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Published in 2023 at "Advanced materials"

DOI: 10.1002/adma.202301852

Abstract: The two-step sequential deposition process is demonstrated as a reliable technology for the fabrication of efficient perovskite solar cells (PVSCs). However, the complete conversion of dense PbI2 to perovskite in planar PVSCs is tough without… read more here.

Keywords: pbi2; lead iodide; solar cells; zif ... See more keywords
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Growth of Ultraflat PbI2 Nanoflakes by Solvent Evaporation Suppression for High-Performance UV Photodetectors.

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Published in 2019 at "Small"

DOI: 10.1002/smll.201901767

Abstract: 2D lead iodide (PbI2 ) is attracting great interest due to its great potential in the application of UV photodetectors. In this work, a facile solution-based method is developed to synthesize ultraflat PbI2 nanoflakes for… read more here.

Keywords: pbi2; pbi2 nanoflakes; performance photodetectors; ultraflat pbi2 ... See more keywords
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Tunable excitonic properties in two-dimensional heterostructures based on solution-processed PbI2 flakes

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Published in 2020 at "Journal of Materials Science"

DOI: 10.1007/s10853-020-04735-y

Abstract: We investigate the manifestations of band structure engineering in few-layer PbI2-based heterostructures by probing their tunable optical properties. First, we have successfully prepared atomically thin flakes from PbI2 solution by two distinct approaches. A drop-casting… read more here.

Keywords: pbi2; two dimensional; band alignment; solution ... See more keywords
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Roughness and structural modification of PbI2 thin films by isopropanol treatment to improve methylammonium lead halide formation and solar cell efficiency

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Published in 2019 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-019-02100-7

Abstract: Perovskite thin films can be prepared by two-step spin coating technique, in which lead iodide (PbI2) is first deposited followed by methylammonium halide. The addition of isopropanol (IPA) in the first deposition leads to more… read more here.

Keywords: pbi2; thin films; treatment; methylammonium ... See more keywords

Enhancing the hydrogen generation of TiO2 nanoparticles by decorating its surface with BiI3 and PbI2 quantum dots

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Published in 2021 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2020.12.027

Abstract: Abstract This work reports the performance of TiO2/BiI3 and TiO2/PbI2 nanocomposites for hydrogen generation. BiI3 and PbI2 quantum dots (QDs) were grown on TiO2 (P25 Degussa) using a fast injection method. According to the analysis… read more here.

Keywords: tio2; bii3; pbi2; hydrogen generation ... See more keywords
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Nanoparticle-induced fast nucleation of pinhole-free PbI2 film for ambient-processed highly-efficient perovskite solar cell

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Published in 2018 at "Nano Energy"

DOI: 10.1016/j.nanoen.2018.03.081

Abstract: Abstract Fully ambient, low temperature-processed, and high-performance perovskite solar cells (PSCs) fabricated with sequential deposition method (SDM) are especially attractive for future commercialization. However, it is extremely difficult as uncontrollable crystallization of PbI2 upon deposition… read more here.

Keywords: pbi2; ambient processed; perovskite solar; pinhole free ... See more keywords
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Fabrication and characterization of La doped PbI2 nanostructured thin films for opto-electronic applications

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Published in 2019 at "Solid State Sciences"

DOI: 10.1016/j.solidstatesciences.2019.02.010

Abstract: Abstract Herein, we report a facile, cost-effective, solution processed fabrication method for pure and lanthanum (La3+) doped lead iodide (PbI2) thin films and investigated structural, optical, dielectric and electrical properties. Synthesis of PbI2 was confirmed… read more here.

Keywords: fabrication; thin films; doped pbi2; pure pbi2 ... See more keywords
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Atomic Layer Deposition of PbI2 Thin Films

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Published in 2019 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.8b04969

Abstract: Atomic layer deposition (ALD) enables the deposition of numerous materials in thin film form, yet there are no ALD processes for metal iodides. Herein, we demonstrate an ALD process for PbI2, a metal iodide with… read more here.

Keywords: pbi2 films; atomic layer; deposition; layer deposition ... See more keywords
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Control of the Morphology and Crystallinity of a PbI2 Layer for Large-Area Perovskite Films Prepared by Close Space Sublimation

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Published in 2018 at "ACS Applied Energy Materials"

DOI: 10.1021/acsaem.8b00610

Abstract: In this work, homogeneous PbI2 films were prepared by the spin-coating technique from PbI2-DMF solutions heated at temperatures ranging from room temperature to 120 °C. The homogeneity and morphology of the films change according to… read more here.

Keywords: pbi2; films prepared; prepared close; perovskite films ... See more keywords
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High-Light-Tolerance PbI2 Boosting the Stability and Efficiency of Perovskite Solar Cells.

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Published in 2021 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.1c02929

Abstract: Excess lead iodide (PbI2) plays a crucial role in passivating the defects of perovskite films and boosting the power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, the photolysis of PbI2 is easily triggered… read more here.

Keywords: light tolerance; pbi2; high light; perovskite solar ... See more keywords