2.4 Thin Films

Gaspari, F.

doi:10.1016/b978-0-12-809597-3.00214-5

Cited by 6 publications

(3 citation statements)

References 83 publications

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“…Thin films are-due to their numerous applications, for example, as reflection and antireflection coatings, for corrosion protection, as hard discs for video or audio tapes, and in piezoelectric devices-one major focal point in materials science. [1][2][3] Of course, many materials properties that make thin metallic or alloyed films perfect for certain applications such as hardness and strength depend on the grain size of the microstructure-just as in their polycrystalline bulk counterparts. However, it is particularly interesting to note that due to the reduction in respect to the third dimension, thin films are often characterized by properties different than the corresponding bulk material.…”

Section: Introductionmentioning

confidence: 99%

Texture Controlled Grain Growth in Thin Films Studied by 3D Potts Model

Zöllner

2019

Advcd Theory and Sims

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Thin films have numerous applications in optics, mechanics, and electricity, where the grain microstructure and the corresponding crystallography are key factors influencing materials properties as well as coarsening kinetics. However, even today this problem is often tackled by 2D means of treating thin films as quasi-2D objects. In the present work, it is shown by modified 3D Potts model simulations that not only is the third dimension non-negligible, but also how texture changes the growth kinetics, when the percentage of low angle grain boundaries varies systematically.

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Section: Introductionmentioning

confidence: 99%

Texture Controlled Grain Growth in Thin Films Studied by 3D Potts Model

Zöllner

2019

Advcd Theory and Sims

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“…In addition, the peak positions in the I 3d spectra of all films are significantly different, indicating distinct interactions between different metal oxide and THP perovskite crystals (Figure S5). The four-probe method is used to measure the surface resistivity/electrical conductivity of the semiconductor. , In the measurement protocol adapted in this work, the four-probe method and the XPS method both assist the surface property. Therefore, the electrical conductivity and the Sn(IV) amount can be correlated.…”

Section: Resultsmentioning

confidence: 99%

“…The four-probe method is used to measure the surface resistivity/electrical conductivity of the semiconductor. 37,38 In the measurement protocol adapted in this work, the four-probe method and the XPS method both assist the surface property. Therefore, the electrical conductivity and the Sn(IV) amount can be correlated.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Unveiling the Role of the Metal Oxide/Sn Perovskite Interface Leading to Low Efficiency of Sn-Perovskite Solar Cells but Providing High Thermoelectric Properties

Baranwal

Saini

Sanehira

et al. 2022

ACS Appl. Energy Mater.

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Tin halide perovskites (THPs) have appealing optoelectronic properties similar to lead halide perovskites (LHPs). However, THPs coated on metal oxide electrodes in normal-structure perovskite solar cells exhibit poor diode rectification, resulting in poor efficiency. This poor photoelectric performance in n–i–p-based THP solar cells is in contrast with LHP solar cells. We report that this deficient performance of THP solar cells is triggered by the defect states of the metal oxide layer. The defect states of the metal oxide can trap the electrons from the THP, leading to the prompt formation of Sn(IV), which will increase the carrier density and lead to poor photoelectric performance. This observation was supported by the ultraviolet-photoelectron spectroscopic measurements of inorganic thin films Al2O3, SnO2, TiO2, ZnO, and ZrO2. However, this self-doping phenomenon resulting in the increase in carrier density can be applied to thermoelectric studies. Using CsSnI3/ZrO2 nanocomposites as thermoelectric active layers, we report a power factor of 186.58 μW/mK2 measured at room temperature, which is better than the 148.61 μW/mK2 of the original CsSnI3 thin film.

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Study Concerning the Correspondence Between Optical Materials and Optical Coatings Using Matlab

Rizescu

2022

Lecture Notes in Mechanical Engineering

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2.4 Thin Films

Cited by 6 publications

References 83 publications

Texture Controlled Grain Growth in Thin Films Studied by 3D Potts Model

Texture Controlled Grain Growth in Thin Films Studied by 3D Potts Model

Unveiling the Role of the Metal Oxide/Sn Perovskite Interface Leading to Low Efficiency of Sn-Perovskite Solar Cells but Providing High Thermoelectric Properties

Study Concerning the Correspondence Between Optical Materials and Optical Coatings Using Matlab

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