Role of Liquid Indium in the Structural Purity of Wurtzite InAs Nanowires That Grow on Si(111)

Nano Letters ◽  
2014 ◽  
Vol 14 (12) ◽  
pp. 6878-6883 ◽  
Author(s):  
Andreas Biermanns ◽  
Emmanouil Dimakis ◽  
Anton Davydok ◽  
Takuo Sasaki ◽  
Lutz Geelhaar ◽  
...  
Keyword(s):  
2021 ◽  
Author(s):  
Shuai Li ◽  
Yushuang Liu ◽  
Peigen Zhang ◽  
Yan Zhang ◽  
Chengjie Lu ◽  
...  

Abstract The mechanism behind spontaneous growth of metal whiskers is essential to develop lead-free whisker mitigation strategy for the sake of long-term reliability of electronics, and has been sought for several decades. However, a consensus about it still lacks, and a host of factors influencing the phenomenon have been investigated, but the role of interface energy has not been paid adequate attention. In this study, the whisker growth propensities of ball-milled Ti2InC/In and non-MAX phase TiC/In and SiC/In are comparatively studied in the terms of the wettability, thermal behavior and crystal structures. The wetting angles of indium with Ti2InC, TiC, and SiC (144.4°, 155.7°, and 142.2°, respectively) are large and quite close, indicating the poor wettability between liquid indium and the three ceramics. The thermal behaviors of all the three systems have obvious changes after ball milling. The number density of indium whiskers on ball-milled Ti2InC are significantly greater than those on the TiC and SiC substrates, which is explained based on interface energy and the crystal structure difference of the ceramic substrates.


Nano Letters ◽  
2008 ◽  
Vol 8 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Qingling Hang ◽  
Fudong Wang ◽  
Patrick D. Carpenter ◽  
Dmitri Zemlyanov ◽  
Dmitri Zakharov ◽  
...  

Nano Letters ◽  
2004 ◽  
Vol 4 (10) ◽  
pp. 1961-1964 ◽  
Author(s):  
Linus E. Jensen ◽  
Mikael T. Björk ◽  
Sören Jeppesen ◽  
Ann I. Persson ◽  
B. Jonas Ohlsson ◽  
...  

2007 ◽  
Vol 111 (36) ◽  
pp. 13331-13336 ◽  
Author(s):  
Shadi A. Dayeh ◽  
Edward T. Yu ◽  
Deli Wang

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 2994 ◽  
Author(s):  
Valeria Demontis ◽  
Mirko Rocci ◽  
Maurizio Donarelli ◽  
Rishi Maiti ◽  
Valentina Zannier ◽  
...  

In this work, we isolate individual wurtzite InAs nanowires and fabricate electrical contacts at both ends, exploiting the single nanostructures as building blocks to realize two different architectures of conductometric sensors: (a) the nanowire is drop-casted onto—supported by—a SiO2/Si substrate, and (b) the nanowire is suspended at approximately 250 nm from the substrate. We test the source-drain current upon changes in the concentration of humidity, ethanol, and NO2, using synthetic air as a gas carrier, moving a step forward towards mimicking operational environmental conditions. The supported architecture shows higher response in the mid humidity range (50% relative humidity), with shorter response and recovery times and lower detection limit with respect to the suspended nanowire. These experimental pieces of evidence indicate a minor role of the InAs/SiO2 contact area; hence, there is no need for suspended nanostructures to improve the sensing performance. Moreover, the sensing capability of single InAs nanowires for detection of NO2 and ethanol in the ambient atmosphere is reported and discussed.


2011 ◽  
Vol 115 (30) ◽  
pp. 14449-14454 ◽  
Author(s):  
Haibo Shu ◽  
Xiaoshuang Chen ◽  
Zongling Ding ◽  
Ruibing Dong ◽  
Wei Lu

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.


2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.


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