Difference between revisions of "Bartlomiej Makowski"

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(Created page with "'''Student Details:''' Bartlomiej is a PhD research student with Optics and Photonics research group at University of Nottingham. His background is a Master of Engineering un...")
 
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'''Student Details:'''
 
'''Student Details:'''
  
Bartlomiej is a PhD research student with Optics and Photonics research group at University of Nottingham. His background is a Master of Engineering undergraduate degree in Electrical and Electronic Engineering from the University of Nottingham. He is currently working on PhD project titled '''Phonon Lifetime Engineering by Vibrational Doping'''.  
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Bartlomiej is a first year PhD research student with Optics and Photonics research group at University of Nottingham. His background is a Master of Engineering undergraduate degree in Electrical and Electronic Engineering from the University of Nottingham. He is currently working on PhD project titled '''Phonon Lifetime Engineering by Vibrational Doping'''.  
  
'''PhD Project:''' Phonon Lifetime Engineering by Vibrational Doping
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'''PhD Project:''' '''''Phonon Lifetime Engineering by Vibrational Doping'''''
  
 
'''Project Supervisors:'''  
 
'''Project Supervisors:'''  
  
Eric Larkins [https://www.nottingham.ac.uk/engineering/people/eric.larkins]
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Professor Eric Larkins [https://www.nottingham.ac.uk/engineering/people/eric.larkins]  
  
Tony Kent [https://www.nottingham.ac.uk/physics/people/anthony.kent]
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Professor Tony Kent [https://www.nottingham.ac.uk/physics/people/anthony.kent]  
  
 
'''Project Description:'''
 
'''Project Description:'''
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facilitate the flow of energy from the hot carrier plasma to mobile acoustic phonons.  
 
facilitate the flow of energy from the hot carrier plasma to mobile acoustic phonons.  
  
In the proposed approach, the hot optical phonon generation will be suppressed by phonon engineering of the material using vibrational doping
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'''Contact Details:'''
to reduce the longitudinal optical (LO) phonon lifetime. This will suppress the generation of hot phonons that heat
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the carriers within the device and degrade the performance of devices operating at higher power density. Our estimates
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'''University Email:''' ''ezxbm1''
show that reducing the LO phonon lifetime by 50% could lead to a 25% increase in maximum power and 22%
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decrease in thermal resistance In high-power laser diodes, and in GaN HFETs, where the channel temperature
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'''Location:''' ''L4 Laboratories, Faculty of Engineering''
could be reduced by at least 30% and the transit time shortened by >10% with corresponding improvements in
 
reliability and cut-off frequency.
 

Latest revision as of 03:06, 27 February 2024

Student Details:

Bartlomiej is a first year PhD research student with Optics and Photonics research group at University of Nottingham. His background is a Master of Engineering undergraduate degree in Electrical and Electronic Engineering from the University of Nottingham. He is currently working on PhD project titled Phonon Lifetime Engineering by Vibrational Doping.

PhD Project: Phonon Lifetime Engineering by Vibrational Doping

Project Supervisors:

Professor Eric Larkins [1]

Professor Tony Kent [2]

Project Description:

This project aims to design and create novel semiconducting materials with significantly improved thermal performance through the control of hot phonon effects. Most ‘phonon engineering’ approaches focus on controlling the propagation of acoustic phonons, i.e. heat flow in semiconductor devices, this fundamentally new and transformative approach seeks to suppress the accumulation of heat in stationary hot optical phonons, and so to facilitate the flow of energy from the hot carrier plasma to mobile acoustic phonons.

Contact Details:

University Email: ezxbm1

Location: L4 Laboratories, Faculty of Engineering