Hole in one: Pathways to deterministic single-acceptor incorporation in Si(100)-2 x 1
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. of Maryland, College Park, MD (United States)
We report that stochastic incorporation kinetics can be a limiting factor in the scalability of semiconductor fabrication technologies using atomic-precision techniques. While these technologies have recently been extended from donors to acceptors, the extent to which kinetics will impact single-acceptor incorporation has yet to be assessed. To identify the precursor molecule and dosing conditions that are promising for deterministic incorporation, we develop and apply an atomistic model for the single-acceptor incorporation rates of several recently demonstrated molecules: diborane (B2H6), boron trichloride (BCl3), and aluminum trichloride in both monomer (AlCl3) and dimer forms (Al2Cl6). While all three precursors can realize single-acceptor incorporation, we predict that diborane is unlikely to realize deterministic incorporation, boron trichloride can realize deterministic incorporation with modest heating (50 °C), and aluminum trichloride can realize deterministic incorporation at room temperature. We conclude that both boron and aluminum trichloride are promising precursors for atomic-precision single-acceptor applications, with the potential to enable the reliable production of large arrays of single-atom quantum devices.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0003525
- OSTI ID:
- 1870448
- Alternate ID(s):
- OSTI ID: 1847198
- Report Number(s):
- SAND2022-3603J; 704496
- Journal Information:
- AVS Quantum Science, Journal Name: AVS Quantum Science Journal Issue: 1 Vol. 4; ISSN 2639-0213
- Publisher:
- American Institute of Physics (AIP) - American Vacuum SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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