Date of Award


Degree Type


Degree Name

Master of Science in Electrical and Computer Engineering (MSECE)


Electrical and Computer Engineering

Committee Chair

Michael J. Manfra

Committee Member 1

Gabor Csathy

Committee Member 2

Peide Ye


Cryogen-free dilution refrigerators (dry fridges) have become an increasingly popular solution to researchers’ cryogenic measurement needs due to their user friendliness and long term use cost savings (4He does not need to be replenished). However, commercially available dry fridges frequently have an effective electron temperatures much warmer than the base temperature of the mixing chamber of the dry fridge. This thesis documents efforts taken to reduce the electron temperature in a dry fridge and the direct probing of the electron temperature via Coulomb blockade thermometry in a 500 nm wide quantum dot.