Monolayers and Langmuir-Blodgett films of luminescent 1,3,5-triazine derivatives containing naphthalene or anthracene chromophores

►Luminescent triazine ultrathin films were prepared. ►Hydrogen bond stabilized two-dimensional monolayers. ►Substituents of triazines dominate morphology and phase separation of aggregates. ►Luminescent wavelength and lifetime depend on substituents of triazines.