• Single-step thermal process produces high-density, narrowband quantum emitters in hexagonal boron nitride. • Emitters exhibit narrow spectral linewidths, ideal for single-photon applications with sub-nanometer precision. • Over 25% of emitters enable room-temperature optical spin readout at ambient conditions. • Spin states identified as S=1 and S=1/2 complexes in hBN. • Charge transfer between strongly and weakly coupled spin pairs explains spin behavior. • Findings advance 2D material platforms for quantum photonics and spintronics.

Article Summaries:

  • A single-step thermal process reliably generates high-density, narrowband quantum emitters in hexagonal boron nitride. More than 25% of these emitters show room-temperature optical spin readout, revealing S = 1 and S = 1/2 spin complexes that are explained by charge transfer from strongly to weakly coupled spin pairs. This is a preview of subscription content, access via your institution Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 27,99 € / 30 days cancel any time Subscribe to this journal Receive 12 print issues an

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