Low-dimensional Transition Metal Chalcogenides for Electronics Applications
Author | : Matthew Abbott Bloodgood |
Publisher | : |
Total Pages | : 232 |
Release | : 2018 |
ISBN-10 | : OCLC:1041852735 |
ISBN-13 | : |
Rating | : 4/5 (35 Downloads) |
Download or read book Low-dimensional Transition Metal Chalcogenides for Electronics Applications written by Matthew Abbott Bloodgood and published by . This book was released on 2018 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry and structure of low-dimensional materials are an important consideration for nanoscale, electronics applications. The oxidative chemistry of 2-dimensional 1T-TiSe2 and 1T-TaSe2 is explored in chapter II. Oxidation onset temperature, oxide layer thickness, and polymorph transitions associated with prolonged, ambient storage are discussed. The oxidative stability of 1T-TiSe2 was found to be lower than that of 1T-TaSe2 with each material reaching full oxidation at 400 and 600 ℗ʻC after 1 h, respectively. A phase transition in TaSe2 after prolonged storage in ambient conditions inspired further study of polymorphism. Investigation of the polymorphic, transitional pathways of 1T-TaSe2 in chapter III revealed two previously unreported transitions. The first is a transition to the room temperature stable phase from 3R to 2H-TaSe2, followed by a transition to the metastable 4H(x) polymorphs (x = a or c). Polymorphism investigation is continued with the study of the NbS3 system described in chapter IV. Two newly established polymorphs of NbS3, along with high-resolution characterization, are reported. These studies are integral advances in knowledge for the advancement of nanoscale electronics.