High quality perovskite thin films induced by crystal seeds with lead monoxide interfacial engineering

2016 ◽  
Vol 4 (43) ◽  
pp. 16913-16919 ◽  
Author(s):  
Xingyao Liang ◽  
Wenzhe Li ◽  
Jiangwei Li ◽  
Guangda Niu ◽  
Liduo Wang
Keyword(s):  
Thin Films ◽  
Step Method ◽  
High Quality ◽  
Important Method ◽  
Interfacial Engineering ◽  
Lead Monoxide ◽  
One Step

Interfacial engineering is an important method to achieve compact and smooth high-quality perovskite films in a one-step method.

scholarly journals Allylamine PECVD Modification of PDMS as Simple Method to Obtain Conductive Flexible Polypyrrole Thin Films

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2108
Author(s):  
Robert Texidó ◽  
Salvador Borrós
Keyword(s):  
Thin Films ◽  
Step Method ◽  
Great Stability ◽  
Simple Method ◽  
Pdms Surface ◽  
Polymeric Chains ◽  
Plasma Grafting ◽  
One Step ◽  
Different Shapes ◽  
Amine Groups

In this paper, we report a one-step method to obtain conductive polypyrrole thin films on flexible substrates. To do this, substrates were modified through allylamine plasma grafting to create a high amount of reactive amine groups on PDMS surface. These groups are used during polypyrrole particle synthesis as anchoring points to immobilize the polymeric chains on the substrate during polymerization. Surface morphology of polypyrrole thin films are modified, tailoring the polyelectrolyte used in the polypyrrole synthesis obtaining different shapes of nanoparticles that conform to the film. Depending on the polyelectrolyte molecular weight, the shape of polypyrrole particles go from globular (500 nm diameter) to a more constructed and elongated shape. The films obtained with this methodology reflected great stability under simple bending as well as good conductivity values (between 2.2 ± 0.7 S/m to 5.6 ± 0.2 S/cm).

A facile one-step method to reduce surface impurities in solution-processed CuInS2 nanocrystal solar cells

2015 ◽  
Vol 3 (27) ◽  
pp. 14116-14120 ◽  
Author(s):  
Melissa S. Stahl ◽  
Hamed Azimi ◽  
Christoph J. Brabec
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Post Processing ◽  
Step Method ◽  
Simple Method ◽  
Solution Processed ◽  
One Step

This work presents a simple method for post-processing of washing away the impurities formed on the films of solution processed CuInS2 thin films.

A simple one-step method with wide processing window for high-quality perovskite mini-module fabrication

Joule ◽  
2021 ◽  
Author(s):  
Hsin-Hsiang Huang ◽  
Qi-Han Liu ◽  
Hsinhan Tsai ◽  
Shreetu Shrestha ◽  
Li-Yun Su ◽  
...  
Keyword(s):  
Step Method ◽  
High Quality ◽  
Processing Window ◽  
One Step

scholarly journals Fast one step preparation of high quality YBa 2 Cu 3 O 7−x thin films by laser ablation

1989 ◽  
Vol 162-164 ◽  
pp. 123-124 ◽  
Author(s):  
J. Fröhlingsdorf ◽  
P. Leiderer ◽  
R. Feile ◽  
W. Zander ◽  
B. Stritzker
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
High Quality ◽  
One Step

One-step fabrication of a mixed-halide perovskite film for a high-efficiency inverted solar cell and module

2016 ◽  
Vol 4 (35) ◽  
pp. 13525-13533 ◽  
Author(s):  
Chien-Hung Chiang ◽  
Jun-Wei Lin ◽  
Chun-Guey Wu
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Film Casting ◽  
Large Area ◽  
Step Method ◽  
High Quality ◽  
One Step ◽  
Halide Perovskite ◽  
Inverted Solar Cell ◽  
Homogeneous Film

Combining halogen composition and film casting engineering, a high quality homogeneous film with a large area can be prepared using a one-step method. Inverted solar cells and modules, based on mixed-halide perovskite films, achieved the highest efficiency of 16.52% and 14.3%, respectively.

High efficiency planar Sn–Pb binary perovskite solar cells: controlled growth of large grains via a one-step solution fabrication process

2017 ◽  
Vol 5 (9) ◽  
pp. 2360-2367 ◽  
Author(s):  
Lingang Li ◽  
Fan Zhang ◽  
Yuying Hao ◽  
Qinjun Sun ◽  
Zhanfeng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Butyl Alcohol ◽  
Step Method ◽  
High Quality ◽  
Solvent Engineering ◽  
Solvent Annealing ◽  
Alcohol Solvent ◽  
One Step

A well-controlled one-step method, assisted by sec-butyl alcohol solvent engineering and N,N-dimethylformamide solvent annealing under an N2 atmosphere, is developed for the growth of a high quality CH3NH3Pb(1−x)SnxI3 perovskite film.

Preparation of Fe(Pt,Pd) Alloy Thin Films with Flat Surfaces on MgO(001) Single-Crystal Substrates

2015 ◽  
Vol 644 ◽  
pp. 227-231 ◽  
Author(s):  
Mitsuru Ohtake ◽  
Akira Itabashi ◽  
Masaaki Futamoto ◽  
Fumiyoshi Kirino ◽  
Nobuyuki Inaba
Keyword(s):  
Thin Films ◽  
Substrate Surface ◽  
Film Plane ◽  
Film Structure ◽  
Step Method ◽  
Flat Surfaces ◽  
Pd Alloy ◽  
One Step ◽  
Formation Method ◽  
Temperature Deposition

Fe50(Pt1–xPdx)50 (at. %, x = 0, 0.25, 0.5, 0.75, 1) alloy thin films are prepared on MgO(001) substrates by using two methods, high-temperature deposition at 600 °C (one-step method) and low-temperature deposition at 200 °C followed by annealing at 600 °C (two-step method). The influence of formation method on the film structure is investigated. L10 crystals epitaxially grow on the substrates when films are deposited at 600 °C. Disordered crystals transform into L10 structure when films are annealed at 600 °C. The films with x > 0.5 consist of L10(001) crystals with the c-axis normal to the substrate surface, whereas the films with x < 0.25 involve small volumes of L10(100) crystals with the c-axis lying in the film plane. Similar final crystallographic orientation is realized for the Fe (Pt,Pd) films prepared by employing the two different methods. The films prepared by one-step method possess island-like surfaces involving side facets, while those prepared by two-step method have very flat surfaces with the arithmetical mean roughness lower than 0.2 nm. The two-step method is effective for preparation of Fe (Pt,Pd) films with flat surfaces.

scholarly journals Hydrothermal Synthesis of Ag Thin Films and Their SERS Application

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 136
Author(s):  
Nikolay P. Simonenko ◽  
Andrey G. Musaev ◽  
Tatiana L. Simonenko ◽  
Philipp Yu. Gorobtsov ◽  
Ivan A. Volkov ◽  
...  
Keyword(s):  
Thin Films ◽  
Synthesis Temperature ◽  
Temperature Treatment ◽  
Spectral Lines ◽  
Step Method ◽  
Synthesis Conditions ◽  
Sers Substrates ◽  
Low Concentrations ◽  
One Step ◽  
Silver Thin Film

In this article, a facile, one-step method for the formation of silver thin-film nanostructures on the surface of Al2O3 substrates using the hydrothermal method is proposed. The dependence of the SERS effect intensity of the formed films during the detection of methylene blue (MB) low concentrations on the synthesis conditions, additional temperature treatment, and laser radiation wavelength (532 and 780 nm) in comparison with similar dye films on commercial SERS substrates is shown. The detection limit of the analyte used for the indicated lasers is estimated. The effect of the synthesis temperature on the particle size, crystal structure, and microstructure features of the obtained thin films based on silver nanoparticles is demonstrated. Using spreading resistance microscopy, the interface between the substrate and Ag particles is studied, and the dependence of the size of the corresponding gap between them and the nature of microstructural defects on the parameters of hydrothermal treatment of reaction systems in the presence of Al2O3 substrates is shown. As a result of the study, the factors associated with the properties of the obtained SERS substrates and the parameters of recording the spectra, which affect the amplification factor of the spectral lines intensity of the analyte, are revealed.

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