This work shows that crystal-phase InP quantum dots can exhibit an unusual antibonding hole ground state, despite being defined within a single chemical material. It links this nonintuitive level ordering to the combined role of crystal-phase interfaces and weak strain neglected in simplified models.
Keywords: crystal-phase quantum dots
Main result: crystal-phase InP quantum dots may host an antibonding hole ground state, leaving a clear fingerprint in the excitonic spectrum. Even weak zinc-blende/wurtzite strain can qualitatively reshape the lowest hole states.