Thermochromic, threshold switching, and optical properties of Cr-doped VO2 thin films
JOURNAL OF ALLOYS AND COMPOUNDS
Authors: Zou, Zhaorui; Zhang, Zhenhua; Xu, Jing; Yu, Ziyang; Cheng, Ming; Xiong, Rui; Lu, Zhihong; Liu, Yong; Shi, Jing
Abstract
In this paper, undoped and Cr-doped VO2 thin films were fabricated and deposited onto Al2O3 substrates using a sol-gel method. Then, the effects of Cr-doping on the thermochromic, and optical properties of the thin films were investigated. Doping with Cr ions gradually increased the metal-insulator transition (MIT) temperature of the films, while the luminous transmittance (T-lum) and the sol modulation efficiency (Delta T-sol) gradually decreased. Additionally, Pt/VO2/ITO devices and Cr-doped VO2 devices were prepared to study their threshold switching (TS) properties. For devices fabricated with Cr-doped VO2 films, both the threshold voltage (Vth+) and the OFF-state current decreased as the amount of Cr doping increased. In contrast, the ON/OFF ratio increased from 10(4) to 10(5). These results provide insight into the potential for using VO2 in thermochromic, optical, and TS applications. (C) 2019 Elsevier B.V. All rights reserved.
Worsening anxiety and depression after initiation of lumacaftor/ivacaftor combination therapy in adolescent females with cystic fibrosis
JOURNAL OF CYSTIC FIBROSIS
Authors: McKinzie, Cameron J.; Goralski, Jennifer L.; Noah, Terry L.; Retsch-Bogart, George Z.; Prieur, Mary Beth
Abstract
In both phase III studies of LUM/IVA, as well as an extension study, worsening of mental health was not reported as a common side effect. Here we describe five cases in adolescent female patients that suggest a worsening of anxiety or depression associated with its use. In these five patients, two experienced suicidal ideation and three made suicide attempts that resulted in psychiatric hospitalizations. (C) 2017 European Cystic Fibrosis Society. Published by Elsevier B.V. All rights reserved.
COA
Publication 
Loading ......
