Project R-16701

Investigation of phosphorus doping in CVD diamond through in-situ plasma diagnostic techniques (Research)

The primary objective of this research study is to investigate how plasma composition influences phosphorus incorporation in single-crystal diamond synthesized via microwave plasma-enhanced chemical vapor deposition (MW PECVD). CVD diamond synthesis and doping are intricate processes that require precise control. By analyzing various plasma gas compositions and their corresponding impurity profiles, this project seeks to identify optimized routes for the diamond doping process. To achieve this objective, the research stay will leverage the expertise and infrastructure at Princeton Plasma Physics Laboratory. The work will focus on advanced in-situ diagnostic tools, specifically optical emission spectroscopy and laser-induced fluorescence, to characterize methyl- and phosphorus-associated growth species within the plasma. Following the stay, the samples will undergo post-growth characterization at the home institution, including temperature-dependent Hall measurements to evaluate phosphorus incorporation efficiency. This collaborative effort will bridge the gap between plasma diagnostics and material synthesis needed to control the CVD diamond-doping process. Ultimately, the project contributes to the forefront of quantum material synthesis, fostering a deeper understanding of controlled diamond doping through international interdisciplinary cooperation.

27 April 2026 - 08 May 2026