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  Chemical vapor deposition of highly conjugated, transparent boron carbon nitride thin films

Giusto, P., Cruz, D., Heil, T., Tarakina, N. V., Patrini, M., & Antonietti, M. (2021). Chemical vapor deposition of highly conjugated, transparent boron carbon nitride thin films. Advanced Science, 8(17): 2101602. doi:10.1002/advs.202101602.

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 Creators:
Giusto, Paolo1, Author              
Cruz, Daniel2, Author              
Heil, Tobias3, Author              
Tarakina, Nadezda V.3, Author              
Patrini, Maddalena, Author
Antonietti, Markus2, Author              
Affiliations:
1Paolo Giusto, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3245192              
2Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              
3Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2522693              

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Free keywords: boron carbon nitride, chemical vapor deposition, optical properties, refractive index, thin films
 Abstract: Ternary materials made up only from the lightweight elements boron, carbon, and nitrogen are very attractive due to their tunable properties that can be obtained by changing the relative elemental composition. However, most of the times, the synthesis requires to use up to three different precursor and very high temperatures for the synthesis. Moreover, the low reciprocal solubility of boron nitride and graphene often leads to BN-C composite materials due to phase segregation. Herein, an innovative method is presented to prepare BCN thin films by chemical vapor deposition from a single source precursor, melamine diborate. The deposition occurs homogenously at relatively low temperatures generating very high degree of sp2 conjugation. The as-prepared thin films possess high transparency and refractive index values in the visible range that are of interest for reflective mirrors and lenses. Furthermore, they are wide-bandgap semiconductor with very positive valence band, making these materials very stable against oxidation of interest as protective coating and charge transport layer for solar cells. The simple chemical vapor deposition method that relies on commonly available and low-hazard precursor can open the way for application of BCN thin films in optics, optoelectronics, and beyond.

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Language(s): eng - English
 Dates: 2021-07-032021
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1002/advs.202101602
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Title: Advanced Science
  Other : Adv. Sci.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 8 (17) Sequence Number: 2101602 Start / End Page: - Identifier: ISSN: 2198-3844