A novel synthesis route with large-scale sublattice asymmetry in boron doped graphene on Ni(111)

Boron doping; Chemical vapor deposition; Defects; Graphene; Scanning tunneling microscopy; Surfaces, Coatings and Films; x-ray photoelectron spectroscopy; surface science; density functional theory

Abstract :

[en] One of the promising ways to functionalize graphene is incorporation of heteroatoms in carbon sp2 lattice, as it is proven to be an efficient and versatile method for controllably tuning chemistry of graphene. We present unique, contamination-free method for selectively doping graphene with B dopants, which are incorporated in layer from a reservoir created in the bulk of Ni(111) single crystal, during standard CVD growth process, leading to clean, versatile and efficient method for creating B-doped graphene. We combine experimental (STM, XPS) and theoretical (DFT, simulated STM) studies to understand structural and chemical properties of substitutional B dopants. Along with previously reported substitutional B in fcc sites, we have observed, for the first time, two more defects, namely substitutional B in top sites and interstitial B in octahedral subsurface sites. Extensive STM investigations confirm presence of low and high concentration regions of B dopants in as-prepared B-doped graphene, indicating non-uniform boron incorporation. Among two substitutional sites, no preference is observed in low-concentration B-doped regions, whereas in high B concentration regions, one of the sublattices is preferred for incorporation, along with alignment of defects. This generates an asymmetric sublattice doping in as-grown B-doped graphene, which is theoretically predicted to result in notable band gap.

Disciplines :

Physics

Author, co-author :

Patil, Sumati ; CNR - Istituto Officina dei Materiali (IOM), Laboratorio TASC, Italy

Perilli, Daniele ; Department of Materials Science, University of Milano-Bicocca, Milano, Italy

PANIGHEL, Mirco ; CNR - Istituto Officina dei Materiali (IOM), Trieste, Laboratorio TASC, Strada Statale 14, km 163.5, 34149 Basovizza, Italy

Baby, Anu; Department of Materials Science, University of Milano-Bicocca, Milano, Italy

Cepek, Cinzia ; CNR - Istituto Officina dei Materiali (IOM), Laboratorio TASC, Italy

Comelli, Giovanni ; CNR - Istituto Officina dei Materiali (IOM), Laboratorio TASC, Italy ; Department of Physics, University of Trieste, Trieste, Italy

Di Valentin, Cristiana ; Department of Materials Science, University of Milano-Bicocca, Milano, Italy

Africh, Cristina ; CNR - Istituto Officina dei Materiali (IOM), Laboratorio TASC, Italy

External co-authors :

yes

Language :

English

Title :

A novel synthesis route with large-scale sublattice asymmetry in boron doped graphene on Ni(111)

Publication date :

August 2024

Journal title :

Surfaces and Interfaces

eISSN :

2468-0230

Publisher :

Elsevier B.V.

Volume :

Pages :

104700

Peer reviewed :

Peer Reviewed verified by ORBi

Focus Area :

Physics and Materials Science

Additional URL :

https://api.elsevier.com/content/article/PII:S2468023024008587?httpAccept=text/xml

European Projects :

H2020 - 101007417 - NEP - Nanoscience Foundries and Fine Analysis - Europe|PILOT

Funders :

Union Européenne

Funding text :

We acknowledge support from the Italian Ministry of Education, Universities and Research (MIUR) through the program PRIN 2017 - Project no. 2017NYPHN8. S.P. acknowledges support by the \u2018ICTP TRIL Programme, Trieste, Italy\u2019 in the framework of the agreement with CNR- IOM laboratories. M.P. acknowledges funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 101007417 NFFA-Europe Pilot. We thank Ayesha Farooq for her help with XPS experiments. D.P. and C.D.V acknowledge funding from the European Union \u2013 NextGenerationEU through the Italian Ministry of University and Research under PNRR \u2013 M4C2I1.4 ICSC \u2013 Centro Nazionale di Ricerca in High Performance Computing, Big Data and Quantum Computing (Grant No. CN00000013 and Innovation Grant with Leonardo and Ferrovie dello Stato).

Data Set :

https://doi.org/10.5281/zenodo.10419283

Available on ORBilu :

since 01 August 2024

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Bibliography

Novoselov, K.S., Geim, A.K., Morozov, S.V., Jiang, D., Zhang, Y., Dubonos, S.V., Grigorieva, I.V., Firsov, A.A., Electric field effect in atomically thin carbon films. Science 306:5696 (2004), 666–669 https://www.science.org/doi/10.1126/science.1102896.
Novoselov, K.S., Geim, A.K., Morozov, S.V., Jiang, D., Katsnelson, M.I., Grigorieva, I.V., Dubonos, S.V., Firsov, A.A., Two-dimensional gas of massless Dirac fermions in graphene. Nature 438:7065 (2005), 197–200 https://www.nature.com/articles/nature04233.
Bolotin, K.I., Sikes, K.J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P., Stormer, H.L., Ultrahigh electron mobility in suspended graphene. Solid State Commun. 146 (2008), 351–355 https://www.sciencedirect.com/science/article/abs/pii/S0038109808001178.
Lee, C., Wei, X., Kysar, J.W., Hone, J., Measurement of the elastic properties and intrinsic strength of monolayer graphene. Science 321:5887 (2008), 385–388 https://www.science.org/doi/10.1126/science.1157996.
Geim, A.K., Novoselov, K.S., The rise of graphene. Nat. Mater. 6:3 (2007), 183–191 https://www.nature.com/articles/nmat1849.
Betti, M.G., Placidi, E., Izzo, C., Blundo, E., Polimeni, A., Sbroscia, M., Avila, J., Dudin, P., Hu, K., Ito, Y., Prezzi, D., Bonacci, M., Molinari, E., Mariani, C., Gap opening in double-sided highly hydrogenated free-standing graphene. Nano Lett. 22:7 (2022), 2971–2977 https://pubs.acs.org/doi/10.1021/acs.nanolett.2c00162.
Mao, H.Y., Lu, Y.H., Lin, J.D., Zhong, S., Wee, A.T.S., Chen, W., Manipulating the electronic and chemical properties of graphene via molecular functionalization. Prog. Surf. Sci. 88:2 (2013), 132–159 https://www.sciencedirect.com/science/article/abs/pii/S0079681613000038.
Panchakarla, L.S., Subrahmanyam, K.S., Saha, S.K., Govindaraj, A., Krishnamurthy, H.R., Waghmare, U.V., Rao, C.N.R., Structure, and properties of boron- and nitrogen-doped graphene. Adv. Mater. 21:46 (2009), 4726–4730, 10.1002/adma.200901285.
Perilli, D., Fiori, S., Panighel, M., Liu, H., Cepek, C., Peressi, M., Comelli, G., Africh, C., Valentin, C.D., Mechanism of CO intercalation through the graphene/Ni(111) interface and effect of doping. J. Phys. Chem. Lett. 11:20 (2020), 8887–8892 https://pubs.acs.org/doi/full/10.1021/acs.jpclett.0c02447.
Wei, D., Liu, Y., Wang, Y., Zhang, H., Huang, L., Yu, G., Synthesis of N-doped graphene by chemical vapor deposition and its electrical properties. Nano Lett. 9:5 (2009), 1752–1758 https://pubs.acs.org/doi/abs/10.1021/nl803279t.
Błoński, P., Tuček, J., Sofer, Z., Mazánek, V., Petr, M., Pumera, M., Otyepka, M., Zbořil, R., Doping with graphitic nitrogen triggers ferromagnetism in graphene. J. Am. Chem. Soc. 139:8 (2017), 3171–3180 https://pubs.acs.org/doi/10.1021/jacs.6b12934.
Hu, W., Wang, C., Tan, H., Duan, H., Li, G., Li, N., Ji, Q., Lu, Y., Wang, Y., Sun, Z., Hu, F., Yan, W., Embedding atomic cobalt into graphene lattices to activate room-temperature ferromagnetism. Nat. Commun., 12(1), 2021, 1854 https://www.nature.com/articles/s41467-021-22122-2.
Paidi, V.K., Jung, E., Lee, J., Lee, A.T., Shepit, M., Ihm, K., Lee, B.H., Lierop, J.V., Hyeon, T., Lee, K.S., Robust room temperature ferromagnetism in cobalt doped graphene by precision control of metal ion hybridization. Adv. Funct. Mater., 33(3), 2023, 2210722 https://onlinelibrary.wiley.com/doi/10.1002/adfm.202210722.
Kong, X.K., Chen, C.L., Chen, Q.W., Doped graphene for metal-free catalysis. Chem. Soc. Rev. 43:8 (2014), 2841–2857 https://pubs.rsc.org/en/content/articlelanding/2014/cs/c3cs60401b.
Jiao, Y., Zheng, Y., Jaroniec, M., Qiao, S.Z., Origin of the electrocatalytic oxygen reduction activity of graphene-based catalysts: a roadmap to achieve the best performance. J. Am. Chem. Soc. 136:11 (2014), 4394–4403 https://pubs.acs.org/doi/full/10.1021/ja500432h.
Wang, L., Sofer, Z., Pumera, M., Will any crap we put into graphene increase its electrocatalytic effect?. ACS Nano 14:1 (2020), 21–25 https://pubs.acs.org/doi/10.1021/acsnano.9b00184.
Wang, H., Maiyalagan, T., Wang, X., Review on recent progress in nitrogen-doped graphene: synthesis, characterization, and its potential applications. ACS Catal. 2:5 (2012), 781–794 https://pubs.acs.org/doi/10.1021/cs200652y.
Riedl, C., Coletti, C., Starke, U., Structural and electronic properties of epitaxial graphene on SiC(0 0 0 1): a review of growth, characterization, transfer doping and hydrogen intercalation. J. Phys. D Appl. Phys., 43(37), 2010, 374009 https://iopscience.iop.org/article/10.1088/0022-3727/43/37/374009.
Ferrighi, L., Trioni, M.I., Valentin, C.D., Boron-doped, nitrogen-doped, and codoped graphene on Cu(111): a DFT + vdW study. J. Phys. Chem. C 119:11 (2015), 6056–6064 https://pubs.acs.org/doi/abs/10.1021/jp512522m.
Freddi, S., Perilli, D., Vaghi, L., Monti, M., Papagni, A., Di Valentin, C., Sangaletti, L., Pushing down the limit of NH3 detection of graphene-based chemiresistive sensors through functionalization by thermally activated tetrazoles dimerization. ACS Nano 16:7 (2022), 10456–10469.
Srivastava, M., Srivastava, A., DFT analysis of nitrogen and boron doped graphene sheet as lead detector. Mater. Sci. Eng. B, 269, 2021, 115165.
Kwon, B., Bae, H., Lee, H., Kim, S., Hwang, J., Lim, H., Lee, W.H., Ultrasensitive N-channel graphene gas sensors by nondestructive molecular doping. ACS Nano 16:2 (2022), 2176–2187.
M Dieb, T., Hou, Z., Tsuda, K., Structure prediction of boron-doped graphene by machine learning. J. Chem. Phys., 148(24), 2018.
Gebhardt, J., Koch, R.J., Zhao, W., Höfert, O., Gotterbarm, K., Mammadov, S., Papp, C., Görling, A., Steinrück, H.-P., Seyller, Th., Growth and electronic structure of boron-doped graphene. Phys. Rev. B., 87, 2013, 155437 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.155437.
Yen, W.C., Medina, H., Huang, J.S., Lai, C.C., Shih, Y.C., Lin, S.M., Li, J.G., Wang, Z.M., Chueh, Y.L., Direct synthesis of graphene with tunable work function on insulators via in situ boron doping by nickel-assisted growth. J. Phys. Chem. C. 118:43 (2014), 25089–25096 https://pubs.acs.org/doi/10.1021/jp508365h.
Rao, B.K., Cabral, T.L.G., de Melo Rodrigues, D.C., de Souza, F.A., Scopel, W.L., Amorim, R.G., Pandey, R., Boron-doped graphene topological defects: unveiling high sensitivity to NO molecule for gas sensing applications. Phys. Chem. Chem. Phys. 26:5 (2024), 4466–4473.
Ferrighi, L., Datteo, M., Valentin, C.D., Boosting graphene reactivity with oxygen by boron doping: density functional theory modeling of the reaction path. J. Phys. Chem. C 118:1 (2014), 223–230 https://pubs.acs.org/doi/abs/10.1021/jp410966r.
Fazio, G., Ferrighi, L., Valentin, C.D., Boron-doped graphene as active electrocatalyst for oxygen reduction reaction at a fuel-cell cathode. J. Catal. 318 (2014), 203–210 https://www.sciencedirect.com/science/article/abs/pii/S0021951714002139.
Zhao, L., Levendorf, M., Goncher, S., Schiros, T., P´alov´a, L., Zabet-Khosousi, A., Rim, K.T., Guti´errez, C., Nordlund, D., Jaye, C., Hybertsen, M., Reichman, D., Flynn, G.W., Park, J., Pasupathy, A.N., Local atomic and electronic structure of boron chemical doping in monolayer graphene. Nano Lett. 13:10 (2013), 4659–4665 https://pubs.acs.org/doi/10.1021/nl401781d.
Usachov, D.Y., Fedorov, A.V., Petukhov, A.E., Vilkov, O.Y., Rybkin, A.G., Otrokov, M.M., Arnau, A., Chulkov, E.V., Yashina, L.V., Farjam, M., Adamchuk, V.K., Senkovskiy, B.V., Laubschat, C., Vyalikh, D.V., Epitaxial B-graphene: large-scale growth and atomic structure. ACS Nano 9:7 (2015), 7314–7322 https://pubs.acs.org/doi/abs/10.1021/acsnano.5b02322.
Rybin, M.G., Kondrashov, I.I., Pozharov, A.S., Nguyen, V.C., Phan, N.M., Obraztsova, E.D., In situ control of CVD synthesis of graphene film on nickel foil. Phys. Status Solidi B, 255(1), 2018, 1700414 https://onlinelibrary.wiley.com/doi/abs/10.1002/pssb.201700414.
Gao, L., Guest, J.R., Guisinger, N.P., Epitaxial graphene on Cu(111). Nano Lett. 10:9 (2010), 3512–3516 https://pubs.acs.org/doi/10.1021/nl1016706.
Marchini, S., Günther, S., Wintterlin, J., Scanning tunneling microscopy of graphene on Ru(0001). Phys. Rev. B., 76, 2007, 075429 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.76.075429.
Coraux, J., N‘Diaye, A.T., Busse, C., Michely, T., Structural coherency of graphene on Ir(111). Nano Lett. 8:2 (2008), 565–570 https://pubs.acs.org/doi/abs/10.1021/nl0728874.
Nečas, D., Klapetek, P., Gwyddion: an open-source software for SPM data analysis. Cent. Eur. J. Phys. 10:1 (2012), 181–188.
Patera, L.L., Africh, C., Weatherup, R.S., Blume, R., Bhardwaj, S., Cudia, C.C., Gericke, A.K., Schloegl, R., Comelli, G., Hofmann, S., Cepek, C., In situ observations of the atomistic mechanisms of Ni catalyzed low temperature graphene growth. ACS Nano 7:9 (2013), 7901–7912 https://pubs.acs.org/doi/abs/10.1021/nn402927q.
Giannozzi, P., Baroni, S., Bonini, N., Calandra, M., Car, R., Cavazzoni, C., Ceresoli, D., Chiarotti, G.L., Cococcioni, M., Dabo, I., Dal Corso, A., Fabris, S., Fratesi, G., de Gironcoli, S., Gebauer, R., Gerstmann, U., Gougoussis, C., Kokalj, A., Lazzeri, M., Martin-Samos, L., Marzari, N., Mauri, F., Mazzarello, R., Paolini, S., Pasquarello, A., Paulatto, L., Sbraccia, C., Scandolo, S., Sclauzero, G., Seitsonen, A.P., Smogunov, A., Umari, P., Wentzcovitch, R.M., QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials. J. Phys. Condens. Matter, 21, 2009, 395502 https://iopscience.iop.org/article/10.1088/0953-8984/21/39/395502.
Giannozzi, P., Andreussi, O., Brumme, T., Bunau, O., Buongiorno Nardelli, M., Calandra, M., Car, R., Cavazzoni, C., Ceresoli, D., Cococcioni, M., Colonna, N., Carnimeo, I., Dal Corso, A., de Gironcoli, S., Delugas, P., DiStasio Jr, R.A., Ferretti, A., Floris, A., Fratesi, G., Fugallo, G., Gebauer, R., Gerstmann, U., Giustino, F., Gorni, T., Jia, J., Kawamura, M., Ko, H.-Y., Kokalj, A., Küçükbenli, E., Lazzeri, M., Marsili, M., Marzari, N., Mauri, F., Nguyen, N.L., Nguyen, H.-V., Otero-de-la-Roza, A., Paulatto, L., Poncé, S., Rocca, D., Sabatini, R., Santra, B., Schlipf, M., Seitsonen, A.P., Smogunov, A., Timrov, I., Thonhauser, T., Umari, P., Vast, N., Wu, X., Baroni, S., Advanced capabilities for materials modelling with Quantum ESPRESSO. J. Phys. Condens. Matter, 29, 2017, 465901 https://iopscience.iop.org/article/10.1088/1361-648X/aa8f79/meta.
Vanderbilt, D., Soft self-consistent pseudopotentials in a generalized eigenvalue formalism. Phys. Rev. B. 41:11 (1990), 7892–7895 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.41.7892.
Lee, K., Murray, É.D., Kong, L., Lundqvist, B.I., Langreth, D.C., Higher-accuracy van der Waals density functional. Phys. Rev. B., 82(8), 2010, 081101 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.82.081101.
Hamada, I., Otani, M., Comparative van der Waals density-functional study of graphene on metal surfaces. Phys. Rev. B., 82(15), 2010, 153412 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.82.153412.
Cooper, V.R., Van der Waals density functional: an appropriate exchange functional. Phys. Rev. B, 81(16), 2010, 161104.
Muñoz-Galán, H., Vines, F., Gebhardt, J., Görling, A., Illas, F., The contact of graphene with Ni (111) surface: description by modern dispersive forces approaches. Theor. Chem. Acc. 135 (2016), 1–9.
Garcia-Lekue, A., Ollé, M., Sánchez-Portal, D., Palacios, J.J., Mugarza, A., Ceballos, G., Gambardella, P., Substrate-induced stabilization and reconstruction of zigzag edges in graphene nanoislands on Ni (111). J. Phys. Chem. C 119:8 (2015), 4072–4078.
Parreiras, D.E., Soares, E.A., Abreu, G.J.P., Bueno, T.E.P., Fernandes, W.P., De Carvalho, V.E., Paniago, R., Graphene/Ni (111) surface structure probed by low-energy electron diffraction, photoelectron diffraction, and first-principles calculations. Phys. Rev. B, 90(15), 2014, 155454.
Voloshina, E., Dedkov, Y., Graphene on metallic surfaces: problems and perspectives. Phys. Chem. Chem. Phys. 14:39 (2012), 13502–13514.
Del Puppo, S., Carnevali, V., Perilli, D., Zarabara, F., Rizzini, A.L., Fornasier, G., Peressi, M., Tuning graphene doping by carbon monoxide intercalation at the Ni (111) interface. Carbon 176 (2021), 253–261.
Monkhorst, H.J., Pack, J.D., Special points for Brillouin-zone integrations. Phys. Rev. B., 13(12), 1976, 5188 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.13.5188.
Tersoff, J., Hamann, D.R., Theory of the scanning tunneling microscope. Phys. Rev. B., 31(2), 1985, 805 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.31.805.
Momma amd F. Izumi, K., VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data. J. Appl. Crystallogr. 44:6 (2011), 1272–1276 https://onlinelibrary.wiley.com/doi/abs/10.1107/S0021889811038970.
Xu, J., Saeys, M., First principles study of the effect of carbon and boron on the activity of a Ni catalyst. J. Phys. Chem. C. 113 (2009), 4099–4106 https://pubs.acs.org/doi/abs/10.1021/jp805579d.
Joucken, F., Tison, Y., Lagoute, J., Dumont, J., Cabosart, D., Zheng, B., Repain, V., Chacon, C., Girard, Y., Méndez, A.R.B., Rousset, S., Sporken, R., Charlier, J.C., Henrard, L., Localized state and charge transfer in nitrogen-doped graphene. Phys. Rev. B Condens. Matter Mater. Phys., 85, 2012, 161408 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.85.161408.
Fiori, S., Perilli, D., Panighel, M., Cepek, C., Ugolotti, A., Sala, A., Liu, H., Comelli, G., Valentin, C.D., Africh, C., “Inside out” growth method for high-quality nitrogen-doped graphene. Carbon 171 (2021), 704–710 https://www.sciencedirect.com/science/article/abs/pii/S0008622320309155.
Zhao, L., He, R., Rim, K.T., Schiros, T., Kim, K.S., Zhou, H., Gutiérrez, C., Chockalingam, S.P., Arguello, C.J., Pálová, L., Nordlund, D., Hybertsen, M.S., Reichman, D.R., Heinz, T.F., Kim, P., Pinczuk, A., Flynn, G.W., Pasupathy, A.N., Visualizing individual nitrogen dopants in monolayer graphene. Science 333 (2011), 999–1003 https://www.science.org/doi/10.1126/science.1208759.
Wan, W., Li, H., Huang, H., Wong, S.L., Lv, L., Gao, Y., Wee, A.T.S., Bottom-up growth of epitaxial graphene on 6H-SiC(0001). ACS Nano 8 (2014), 970–976 https://pubs.acs.org/doi/abs/10.1021/nn800711v.
Jian, Y., Jihua, H., Dongyu, F., Shuhai, C., Xingke, Z., First-principles investigation on the interaction of boron atom with nickel Part I: from surface adsorption to bulk diffusion. J. Alloys Compd. 663 (2016), 116–122 https://www.sciencedirect.com/science/article/abs/pii/S0925838815319290.
Patera, L.L., Bianchini, F., Africh, C., Dri, C., Soldano, G., Mariscal, M.M., Peressi, M., Comelli, G., Real-time imaging of adatom-promoted graphene growth on nickel. Science 359:6381 (2018), 1243–1246 https://www.science.org/doi/10.1126/science.aan8782.
Carnevali, V., Patera, L.L., Prandini, G., Jugovac, M., Modesti, S., Comelli, G., Peressi, M., Africh, C., Doping of epitaxial graphene by direct incorporation of nickel adatoms. Nanoscale 11:21 (2019), 10358–10364 https://pubs.rsc.org/en/content/articlelanding/2019/nr/c9nr01072f.
Lawlor, J.A., Ferreira, M.S., Sublattice asymmetry of impurity doping in graphene: a review. Nanotechnol 5 (2014), 1210–1217 https://www.beilstein-journals.org/bjnano/articles/5/133.
Lherbier, A., Botello-Méndez, A.R., Charlier, J.C., Electronic and transport properties of unbalanced sublattice N-doping in graphene. Nano Lett. 13 (2013), 1446–1450 https://pubs.acs.org/doi/10.1021/nl304351z.
Rani, P., Jindal, V.K., Designing band gap of graphene by B and N dopant atoms. RSC Adv. 3 (2013), 802–812 https://pubs.rsc.org/en/content/articlelanding/2013/ra/c2ra22664b.
Usachov, D.Y., Fedorov, A.V., Vilkov, O.Y., Petukhov, A.E., Rybkin, A.G., Ernst, A., Otrokov, M.M., Chulkov, E.V., Ogorodnikov, I.I., Kuznetsov, M.V., Yashina, L.V., Kataev, E.Y., Erofeevskaya, A.V., Voroshnin, V.Y., Adamchuk, V.K., Laubschat, C., Vyalikh, D.V., Large-scale sublattice asymmetry in pure and boron-doped graphene. Nano Lett. 16:7 (2016), 4535–4543 https://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b01795.
Zabet-Khosousi, A., Zhao, L., Pálová, L., Hybertsen, M.S., Reichman, D.R., Pasupathy, A.N., Flynn, G.W., Segregation of sublattice domains in Nitrogen-doped graphene. J. Am. Chem. Soc. 136:4 (2014), 1391–1397 https://pubs.acs.org/doi/10.1021/ja408463g.
Cuxart, M.G., Perilli, D., Tömekce, S., Deyerling, J., Haag, F., Muntwiler, M., Allegretti, F., Valentin, C.D., Auwärter, W., Spatial segregation of substitutional B atoms in graphene patterned by the moiré superlattice on Ir(111). Carbon 201 (2023), 881–890 https://www.sciencedirect.com/science/article/abs/pii/S0008622322008193.
Tiwari, A., Palepu, J., Choudhury, A., Bhattacharya, S., Kanungo, S., Theoretical analysis of the NH3, NO, and NO2 adsorption on boron-nitrogen and boron-phosphorous co-doped monolayer graphene-a comparative study. FlatChem, 34, 2022, 100392.