Vertical solid-state transducers and high voltage solid-state transducers having buried contacts and associated systems and methods

A method of forming a light-emitting diode (LED) comprising:

• forming a light-emitting transducer structure having a light-emitting active region positioned between a first semiconductor material and a second semiconductor material;
• separating the transducer structure into at least first and second electrically isolated junctions;
• electrically coupling a first contact to the first semiconductor material at the first junction;
• electrically coupling a second contact to the second semiconductor material at the second junction, wherein the second contact extends through the first semiconductor material and is electrically isolated from the first semiconductor material;
• forming an interconnect between the first contact and the second contact such that the first and second junctions are electrically connected in series;
• and
• electrically connecting a third contact to the interconnect, wherein the third contact is configured to cross-connect to another contact on a second LED.