Solid-state transducers (“SSTs”) and SST arrays having backside contacts are disclosed herein. An SST in accordance with a particular embodiment can include a transducer structure having a first semiconductor material at a first side of the transducer structure, and a second semiconductor material at a second side of the transducer structure. The SST can further include a first contact at the first side and electrically coupled to the first semiconductor material, and a second contact extending from the first side to the second semiconductor material and electrically coupled to the second semiconductor material. A carrier substrate having conductive material can be bonded to the first and second contacts.