Science Advances

Supplementary Materials

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  • Fig. S1. CVD setup for BNCO growth.
  • Fig. S2. Morphology of growth substrate (copper) with and without boron and nitrogen source.
  • Fig. S3. Morphological characterizations of sample and substrate after growth.
  • Fig. S4. XPS analysis of the chemical composition of the 2D-BNCO samples.
  • Fig. S5. 2D-BNCO surface coverage analysis.
  • Fig. S6. Detailed Raman spectroscopic analysis.
  • Fig. S7. DFT-computed electronic properties of metastable structures of C38(BN)3B2O4 and C35(BN)3B3O6 nano patches.
  • Fig. S8. Source-drain current as a function of back gate voltage measured from BNCO-6 sample.
  • Fig. S9. Absorption spectroscopy studies.
  • Fig. S10. Variation of resistance with temperature in a typical BNCO sample, demonstrating semiconducting behavior with a negative temperature coefficient of resistance (TCR).
  • Fig. S11. Temperature dependence of resistance.
  • Fig. S12. Phototransmittance characteristics of 2D-BNCO.
  • Table S1. Calculated TCR values for BNCO samples.
  • References (36−38)

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