Advancing Materials for Quantum Information Science: CVD Growth and Functionalization of Graphene with Ordered Arrays of Nanodiamonds
EMSL Project ID
49668
Abstract
Quantum information science is an up and coming area of research aimed to transform computing capabilities in the future. The use of quantum bits, or qubits, in place of traditional bits is predicted to yield extraordinary processing power suitable for applications in encryption and communication. However, to date, the scalability of previous approaches beyond a single or a few qubits has been poor as quantum information is readily deconstructed by small material defects and interferences. In order to produce reliable high-performance quantum computing platforms, significant improvements in qubit architecture design and fabrication must be achieved. Our project aims to develop new materials featuring ordered arrays of qubits operating at room temperature to yield more experimental evidence supporting the promise of quantum computing. Specifically, we aim to construct large area diamond-graphene heterostructures. In this architecture, photons emitted from engineered nanoscale-diamond act as qubits and a conductive graphene substrate allows transmission and extraction of diamond photon emission by electrical means. We will grow graphene by chemical vapor deposition (CVD) and will use EMSL for analyzing the films produced. Using a combination of in situ and ex situ techniques will aid in screening the films in terms of purity and surface composition. Ensuring the graphene substrate is of high quality and uniformity is essential for interfacing with diamond materials and minimizing decoherence when processing quantum information. Optimization of nanoscale-diamond films and particles in terms of luminescent properties, array spacing, and surface chemistry for self-assembling or patterning to graphene will also be undertaken in this work. This proposal work aims to take advantage of our team’s chemistry and materials science background and the suite of characterization and fabrication tools at ESML to make useful materials for QIS.
Project Details
Start Date
2016-11-03
End Date
2017-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Co-Investigator(s)
Team Members
Related Publications
Kennedy ZC, CA Barrett, and MG Warner. 2017. "Direct Functionalization of Acid-Terminated Nanodiamond with Azide: Enabling Access to 4-Substituted-1,2,3-Triazole Functionalized Particles." Langmuir 33(11):2790-2798. doi:10.1021/acs.langmuir.6b04477