Grain detachment and transport clogging during mineral dissolution in carbonate rocks with permeable grain boundaries

Tailoring electrical transport across grain boundaries in polycrystalline graphene.

Graphene produced by chemical vapor deposition (CVD) is polycrystalline, and scattering of charge carriers at grain boundaries (GBs) could degrade its performance relative to exfoliated, single-crystal graphene. However, the electrical properties of GBs have so far been addressed indirectly without simultaneous knowledge of their locations and structures. We present electrical measurements on i...

Current transport along grain boundaries in d-wave superconductors

The use of a classic phase retrieval algorithm has been previously used to determine the local critical current Jc(x) along the length of grain boundary Josephson junctions that can be characterized using a standard s-wave model. The phase retrieval approach has been modified for use with d-wave dominated superconductors to allow for negative local currents along the boundary. In general soluti...

Effect of grain boundaries on thermal transport in graphene

Andrey Y. Serov, Zhun-Yong Ong, and Eric Pop Department of Electrical & Computer Engineering, University of Illinois, Urbana-Champaign, Illinois 61801, USA Micro and Nanotechnology Laboratory, University of Illinois, Urbana-Champaign, Illinois 61801, USA Department of Physics, University of Illinois, Urbana-Champaign, Illinois 61801, USA Beckman Institute, University of Illinois, Urbana-Champai...

Grain Boundaries in Polycrystalline Alumina

Misorientation-angle-dependent electrical transport across molybdenum disulfide grain boundaries

Grain boundaries in monolayer transition metal dichalcogenides have unique atomic defect structures and band dispersion relations that depend on the inter-domain misorientation angle. Here, we explore misorientation angle-dependent electrical transport at grain boundaries in monolayer MoS2 by correlating the atomic defect structures of measured devices analysed with transmission electron micros...