Methylammonium lead iodide grain boundaries exhibit depth-dependent electrical properties

2016 ◽  
Vol 9 (12) ◽  
pp. 3642-3649 ◽  
Author(s):  
Gordon A. MacDonald ◽  
Mengjin Yang ◽  
Samuel Berweger ◽  
Jason P. Killgore ◽  
Pavel Kabos ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Grain Boundaries ◽  
Lead Iodide ◽  
Photo Response ◽  
Methylammonium Lead Iodide

In this communication, the nanoscale through-film and lateral photo-response and conductivity of large-grained methylammonium lead iodide (MAPbI3) thin films are studied.

Effect of Grain Boundaries on Charge Transport in Methylammonium Lead Iodide Perovskite Thin Films

2019 ◽  
Vol 123 (9) ◽  
pp. 5321-5325 ◽  
Author(s):  
Hamidreza Khassaf ◽  
Srinivas K. Yadavalli ◽  
Yuanyuan Zhou ◽  
Nitin P. Padture ◽  
Angus I. Kingon
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

scholarly journals Structural and Electrical Studies on ZnO-Based Thin Films by Laser Irradiation

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Shanyue Zhao ◽  
Yinqun Hua ◽  
Ruifang Chen ◽  
Jian Zhang ◽  
Ping Ji
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Electrical Properties ◽  
Grain Boundaries ◽  
Laser Irradiation ◽  
Nonlinear Coefficient ◽  
Acceptor State ◽  
Xrd Pattern ◽  
Electrical Studies ◽  
Structural And Electrical Properties

The effects of laser irradiation on the structural and electrical properties of ZnO-based thin films were investigated. The XRD pattern shows that the thin films were highly textured along thec-axis and perpendicular to the surface of the substrate. Raman spectra reveal that Bi2O3segregates mainly at ZnO-ZnO grain boundaries. After laser irradiation processing, the grain size of the film was reduced significantly, and the intrinsic atomic defects of grain boundaries and Bi element segregated at the grain boundary were interacted frequently and formed the composite defects of acceptor state. The nonlinear coefficient increased to 24.31 and the breakdown voltage reduced to 5.34 V.

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

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

Microtexture Dependence of Mechanical and Electrical Properties of Gold Thin Films Used for Micro Bumps of 3D Stacking Structures

2020 ◽  
Author(s):  
Genta Nakauchi ◽  
Shota Akasaki ◽  
Hideo Miura
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Electrical Properties ◽  
Grain Boundaries ◽  
Indentation Test ◽  
Electron Back Scatter Diffraction ◽  
Effective Lifetime ◽  
Mechanical And Electrical Properties ◽  
Gold Thin Films ◽  
3D Stacking

Abstract The variation of their crystallinity, in other words, the order of atom arrangement of grain boundaries in electroplated gold thin films was investigated by changing their manufacturing conditions. Then, the effect of the crystallinity on both their mechanical and electrical properties was measured by using nano-indentation test and electromigration test. The crystallinity of the gold thin films was varied by changing the under-layer material used for electroplating. Also, the micro texture of gold thin films was evaluated by EBSD (Electron Back-Scatter Diffraction) and XRD (X-Ray Diffraction). It was clarified that the crystallinity of the electroplated gold thin films changed drastically depending on the crystallinity of the under-layer materials and electroplating conditions such as current density and temperature. This variation of the crystallinity should have caused wide variation of mechanical properties of the films. In addition, their mechanical properties such as Young’s modulus and hardness showed wide variation by about 3 times comparing with those of bulk gold. Similarly, the EM resistance of the electroplated gold bumps varied drastically depending on the ratio of porous grain boundaries and their crystallinity. Both the ratio and crystallinity also varied depending on the crystallinity of the under layer and electroplating conditions. The effective lifetime of the gold bumps was successfully predicted by considering both the crystallinity and residual stress of fine gold bumps. The lifetime varied more than 10 times as a strong function of the crystallinity of grain boundaries in the fine bumps. Therefore, it is very important to control the crystallinity of the under-layer for electroplating in order to control the distribution of the mechanical properties and reliability of the electroplated gold thin films.

Persistent Energetic Electrons in Methylammonium Lead Iodide Perovskite Thin Films

2016 ◽  
Vol 138 (48) ◽  
pp. 15717-15726 ◽  
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

scholarly journals Effect of temperature on light induced degradation in methylammonium lead iodide perovskite thin films and solar cells

2018 ◽  
Vol 174 ◽  
pp. 566-571 ◽  
Author(s):  
Ghada Abdelmageed ◽  
Cameron Mackeen ◽  
Kaitlin Hellier ◽  
Leila Jewell ◽  
Lydia Seymour ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Effect Of Temperature ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

Ferroelectric domains in methylammonium lead iodide perovskite thin-films

2017 ◽  
Vol 10 (4) ◽  
pp. 950-955 ◽  
Author(s):  
Holger Röhm ◽  
Tobias Leonhard ◽  
Michael J. Hoffmann ◽  
Alexander Colsmann
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Ferroelectric Domains ◽  
Methylammonium Lead Iodide ◽  
Insight Into ◽  
Ferroic Properties

A comprehensive AFM study provides insight into the ferroic properties of methylammonium lead iodide as commonly incorporated into perovskite solar cells.

scholarly journals Optical response of mixed methylammonium lead iodide and formamidinium tin iodide perovskite thin films

AIP Advances ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 075108 ◽  
Author(s):  
Kiran Ghimire ◽  
Dewei Zhao ◽  
Yanfa Yan ◽  
Nikolas J. Podraza
Keyword(s):  
Thin Films ◽  
Optical Response ◽  
Lead Iodide ◽  
Tin Iodide ◽  
Methylammonium Lead Iodide
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