  The existence of two novel hybrid two-dimensional (2D) monolayers, 2D B3C2P3
and 2D B2C4P2, has been predicted based on the density functional theory
calculations. It has been shown that these materials possess structural and
thermodynamic stability. 2D B3C2P3 is a moderate band gap semiconductor, while
2D B2C4P2 is a zero band gap semiconductor. It has also been shown that 2D
B3C2P3 has a highly tunable band gap under the effect of strain and substrate
engineering. Moreover, 2D B3C2P3 produces low barriers for dissociation of
water and hydrogen molecules on its surface, and shows fast recovery after
desorption of the molecules. The novel materials can be fabricated by carbon
doping of boron phosphide, and directly by arc discharge and laser ablation and
vaporization. Applications of 2D B3C2P3 in renewable energy and straintronic
nanodevices have been proposed.
