Practical doping principles

Practical Doping Principles

Theoretical investigations of doping of several wide-gap materials suggest a number of rather general, practical doping principles that may help guide experimental strategies of overcoming doping bottlenecks. This paper will be published as a journal article in the future. Since the operation of carrier-transporting heterojunction devices is predicated on ambipolar (pand -n type) doping, the fa...

Practical Principles in Appointment Scheduling

Appointment schedules aim at achieving a proper balance between the conflicting interests of the service provider and her clients: a primary objective of the service provider is to fully utilize her available time, whereas clients want to avoid excessive waiting times. Setting up schedules that strike a good balance is severely complicated by the fact that the clients’ service times are random....

Basic principles and practical application

Doping of rhenium disulfide monolayers: a systematic first principles study.

The absence of a direct-to-indirect band gap transition in ReS2 when going from the monolayer to bulk makes it special among the other semiconducting transition metal dichalcogenides. The functionalization of this promising layered material emerges as a necessity for the next generation technological applications. Here, the structural, electronic, and magnetic properties of substitutionally dop...

First-principles study on doping and phase stability of HfO2

Choong-Ki Lee,1 Eunae Cho,1 Hyo-Sug Lee,2 Cheol Seong Hwang,3 and Seungwu Han1,* 1Department of Physics, Ewha Womans University, Seoul 120-750, Korea 2Samsung Advanced Institute of Technology, Suwon 400-600, Korea 3Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, Seoul National University, Seoul 151-742, Korea Received 11 March 2008; published ...