Masdar Institute Paper Published in Nature Scientific Reports
Dr. Ammar Nayfeh, Assistant Professor, and PhD student Amro Al Khatib have published the first Masdar Institute-only paper in the prestigious Nature Scientific Reports. This work was done in the Nano Electronics and Photonics lab headed by Professor Nayfeh. The paper is titled "A Complete Physical Germanium-on-Silicon Quantum Dot Self-Assembly Process.”
This research represents an important achievement in material science and quantum assembly. It enhances scientific progress in fields extending from photovoltaics, low power memories and electronics. As a result, it matches perfectly with the vision of Masdar Institute and Abu Dhabi 2030.
Professor Nayfeh says: “We are very excited about this achievement. We are able to precisely locate 10 nm Ge quantum dots without any chemical processing. There are a plethora of potential applications. The fact that we are able to publish this work in Nature is another big step in placing Masdar Institute of Science and Technology on the research and scientific map.”
The work describes an original method for self-assembling precise zero-dimensional quantum structures using an inherently simple manufacturing arrangement. The researchers achieved a simple physical system for achieving germanium (Ge) quantum dots (QDs) assembly on silicon (Si) with high accuracy. The method requires no chemical processing or lithography. Instead, nucleation sites are created using nanoindentation patterning procedure followed by Ge sputtering and annealing. Using this method an ordered self assembled matrix of 10 nm height ordered Ge QDs at predefined locations is achieved. The results achieved highlight an attractive way to manufacture quantum dot structures for future quantum electronics and photonic applications due to its strict precision and simplicity.