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Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
Triangular BN-Embedded Molecular Carbons with Zigzag Edges and Their Dual Functionality in Fluoroanion Detection and
Bo Yang1, Yongzhe Li2, Jiale Hu1
1School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
JACS Au
|June 26, 2026
Summary
Researchers synthesized novel boron-nitrogen (B-N) embedded nanographenes, achieving precise atomic control. These B-N nanographenes show promise as interfacial layers in perovskite solar cells, enhancing efficiency and stability.
Area of Science:
- Materials Science
- Organic Chemistry
- Nanotechnology
Background:
- Atomically precise synthesis of nanographenes with boron-nitrogen (B-N) units in hexabenzocoronene (HBC) skeletons remains largely unexplored.
- The unique properties arising from B-N incorporation into extended aromatic systems are yet to be fully understood.
Purpose of the Study:
- To report the synthesis and characterization of novel BN-embedded molecular carbons (BN-Ph and BN-OH) within an HBC framework.
- To investigate the impact of B-N unit incorporation on the structural, photophysical, electronic, and sensing properties of nanographenes.
- To evaluate the performance of these BN-embedded nanographenes as interfacial layers in perovskite solar cells (PSCs).
Main Methods:
- Regioselective synthesis of three B-N bridges at the bay positions of the HBC skeleton.
- Characterization of synthesized BN-embedded nanographenes using various spectroscopic and analytical techniques.
- Fabrication and testing of perovskite solar cells utilizing BN-Ph and BN-OH as interfacial layers.
Main Results:
- Successful synthesis and characterization of BN-Ph and BN-OH, featuring B-N bridges in the HBC skeleton.
- Incorporation of B-N units resulted in unique solid-state stacking, photophysical properties, and electronic structures, while preserving global aromaticity.
- BN-embedded nanographenes demonstrated sensitive and reversible fluoride anion sensing with tunable color.
- Perovskite solar cells with BN-Ph/BN-OH interfacial layers achieved a power conversion efficiency of 25.24% and an open-circuit voltage of 1.187 V.
- The hydrophobicity of the materials enhanced device stability, retaining over 90% efficiency after ambient exposure.
Conclusions:
- The study presents a versatile synthetic platform for chemically customized BN-based functional materials.
- BN-embedded nanographenes offer promising applications as interfacial layers in high-efficiency and stable perovskite solar cells.
- The unique properties of these materials open new avenues for designing advanced functional carbon nanomaterials.
Keywords:
boron−nitrogen dopingglobal aromaticityinterfacical transport materialion sensingmolecular carbonnanographenesperovskite solar cellMore Related Videos
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