scholarly journals Perovskites: Photoluminescence Enhancement in Formamidinium Lead Iodide Thin Films (Adv. Funct. Mater. 26/2016)

2016 ◽  
Vol 26 (26) ◽  
pp. 4804-4804 ◽  
Author(s):  
Hong-Hua Fang ◽  
Feng Wang ◽  
Sampson Adjokatse ◽  
Ni Zhao ◽  
Maria Antonietta Loi
Keyword(s):  
Thin Films ◽  
Lead Iodide ◽  
Photoluminescence Enhancement

Photoluminescence Enhancement in Formamidinium Lead Iodide Thin Films

2016 ◽  
Vol 26 (26) ◽  
pp. 4653-4659 ◽  
Author(s):  
Hong-Hua Fang ◽  
Feng Wang ◽  
Sampson Adjokatse ◽  
Ni Zhao ◽  
Maria Antonietta Loi
Keyword(s):  
Thin Films ◽  
Lead Iodide ◽  
Photoluminescence Enhancement

Lead Iodide Thin Films via rf Sputtering

2020 ◽  
Vol 20 (3) ◽  
pp. 1531-1537 ◽  
Author(s):  
José Maria Clemente da Silva Filho ◽  
Nelson Fabián Villegas Borrero ◽  
Gustavo Alexandre Viana ◽  
Rafael Borges Merlo ◽  
Francisco Chagas Marques
Keyword(s):  
Thin Films ◽  
Rf Sputtering ◽  
Lead Iodide

scholarly journals Correction to “Persistent Energetic Electrons in Methylammonium Lead Iodide Perovskite Thin Films”

2017 ◽  
Vol 139 (19) ◽  
pp. 6777-6777 ◽  
Author(s):  
Daniel Niesner ◽  
Haiming Zhu ◽  
Kiyoshi Miyata ◽  
Prakriti P. Joshi ◽  
Tyler J. S. Evans ◽  
...  
Keyword(s):  
Thin Films ◽  
Lead Iodide ◽  
Energetic Electrons ◽  
Methylammonium Lead Iodide

Electrical Transport Mechanisms and Photoconduction in Undoped Crystalline Flash-Evaporated Lead Iodide Thin Films

2017 ◽  
Vol 47 (3) ◽  
pp. 1806-1818 ◽  
Author(s):  
Tariq M. Al-Daraghmeh ◽  
Mahmoud H. Saleh ◽  
Mais Jamil A. Ahmad ◽  
Basim N. Bulos ◽  
Khawla M. Shehadeh ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Transport ◽  
Transport Mechanisms ◽  
Lead Iodide

scholarly journals Ferroelectric Poling of Methylammonium Lead Iodide Thin Films

2019 ◽  
Vol 30 (5) ◽  
pp. 1908657 ◽  
Author(s):  
Holger Röhm ◽  
Tobias Leonhard ◽  
Michael J. Hoffmann ◽  
Alexander Colsmann
Keyword(s):  
Thin Films ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

scholarly journals Shedding Light on Phase Stability and Surface Engineering of Formamidinium Lead Iodide (FaPbI3) Thin Films for Solar Cells

2021 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Julia Marí-Guaita ◽  
Amal Bouich ◽  
Bernabé Marí
Keyword(s):  
Thin Films ◽  
Surface Engineering ◽  
Optical Analysis ◽  
X Ray Diffraction ◽  
Lead Iodide ◽  
X Ray ◽  
Structure Surface ◽  
Uv Visible ◽  
The Stability ◽  
Humidity Environment

In this work, FAPbI3 thin films with different antisolvents (toluene, diethyl ether and chlorobenzene) were successfully elaborated by the spin coating technique to study the influence of the different antisolvents in the films. The crystal structure, surface morphology and optical properties were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) photoluminescence and UV–visible spectrometry. According to XRD, the crystalline structure of FAPbI3 was found in the orientation of the (110) plane, and it is observed that the type of antisolvent content in the absorber layer plays an important role in the growth and stabilization of the film. Here, chlorobenzene leads to a smooth and homogenous surface, a large grain size and a pinhole-free perovskite film. Additionally, the optical analysis revealed that the band gap is in the range from 1.55 to 1.57 eV. Furthermore, in an approximately 60% humidity environment and after two weeks, the stability and absorption of FaPbI3 showed low degradation.

scholarly journals Tracking Intrinsic Properties of CH3NH3PbI3 Perovskite Thin Films Grown by Spin Coating Technique at Ambient Temperature

2019 ◽  
Vol 6 (2) ◽  
pp. 59-68
Author(s):  
Cliff Orori Mosiori ◽  
John Maera
Keyword(s):  
Thin Films ◽  
Optical Constants ◽  
Transient Absorption ◽  
Large Fraction ◽  
Perovskite Solar Cells ◽  
Transient Absorption Spectrum ◽  
Decay Kinetics ◽  
Lead Iodide ◽  
Time Resolved ◽  
Optoelectronic Applications

Methyl ammonium lead iodide has become a burgeoning class of hybrid halide perovskites of solution-processed semiconductors. Advancements in its processing and characterization underscore structural, optical, and electronic properties. They have led to the development of perovskite solar cells, photo detectors, lasers, and photo diodes with power conversion efficiencies mature to be classified as first and second-generation technologies. Characterizing forms an integral understanding the operating principles and fundamental limitations for optoelectronics applications. Studies outlined in this paper covers CH3NH3PbI3 using time-resolved pump-probe spectroscopy, X-ray diffractometry, spectrophotometry and other measurements. Thus this investigatiosn may serve as principle tool in analyzing excited state decay kinetics and optical nonlinearities in CH3NH3PbI3 thin films. It is demonstrated herein that non-resonant photoexcitation yields a large fraction of free carriers on a sub-picosecond time scale. If applied in practical optoelectronic applications then any photogenerated carriers may travel long carrier lengths before they are extracted to realize large external quantum efficiencies and efficient charge extraction. The optical constants of CH3NH3PbI3 are interpreted using ab initio calculations through models. Findings show good agreement between the optical constants derived from QSGW and those from related literature. Transition from the highest valence band (VB) to the lowest conduction band (CB) was found to be responsible for almost all the optical responses between 1.2 and 5.5 eV. It was concluded that optical constants and energy band diagrams of CH3NH3PbI3 can be used to simulate the contributions from different optical transitions to a typical transient absorption spectrum for many optoelectronic applications.

scholarly journals Photoluminescence Enhancement and Change in the Second Nearest Neighbor Distance of Sm‐Doped TiO 2 Thin Films

2019 ◽  
Vol 256 (6) ◽  
pp. 1800522 ◽  
Author(s):  
Mariko Murayama ◽  
Kensaku Yoda ◽  
Keita Shiraishi ◽  
Iain F. Crowe ◽  
Shuji Komuro ◽  
...  
Keyword(s):  
Thin Films ◽  
Nearest Neighbor ◽  
Neighbor Distance ◽  
Photoluminescence Enhancement ◽  
Nearest Neighbor Distance
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