Nanostructure optoelectronic device with independently controllable junctions

A method of forming an optoelectronic device comprising:

• forming an array of nanostructures, the nanostructures in the array having sidewalls, groups of one or more nanostructures in the array forming pixels, wherein the nanostructure array comprises an array of pixels having different color sub-pixels, wherein individual ones of the nanostructures have multiple photoactive regions for the different color sub-pixels;
• forming a first group of electrical contacts physically and electrically connected to the sidewalls, the first group of electrical contacts are aligned in a first direction;
• forming a second group of electrical contacts physically and electrically coupled to the sidewalls, the second group of electrical contacts are aligned in a second direction that is orthogonal to the first direction, wherein portions of nanostructures at an intersection of respective ones of the first group of electrical contacts and respective ones of the second group of electrical contacts form sub-pixels of a first color;
• forming a third group of electrical contacts physically and electrically coupled to the sidewalls, the third group of electrical contacts are aligned in the first direction, wherein portions of nanostructures at an intersection of respective ones of the second group of electrical contacts and respective ones of the third group of electrical contacts form sub-pixels of a second color;
• and
• providing control logic coupled to the first group and the second group of electrical contacts, wherein the control logic is configured to individually control the sub-pixels by applying appropriate voltages to the first, second, and third groups of electrical contacts to generate or detect light of the first color and the second color.

A method of operating an optoelectronic device that comprises:

• an array of nanostructures, the nanostructures in the array having sidewalls, groups of one or more nanostructures in the array forming pixels, wherein the nanostructure array comprises an array of pixels having different color sub-pixels, wherein individual ones of the nanostructures have multiple photoactive regions for the different color sub-pixels;
• a first group of electrical contacts physically and electrically connected to the sidewalls, the first group of electrical contacts are aligned in a first direction;
• and a second group of electrical contacts physically and electrically coupled to the sidewalls, the second group of electrical contacts are aligned in a second direction that is orthogonal to the first direction, wherein portions of nanostructures at an intersection of respective ones of the first group of electrical contacts and respective ones of the second group of electrical contacts form sub-pixels of a first color, and a third group of electrical contacts physically and electrically coupled to the sidewalls, the third group of electrical contacts are aligned in the first direction, wherein portions of nanostructures at an intersection of respective ones of the second group of electrical contacts and respective ones of the third group of electrical contacts form sub-pixels of a second color;
• the method comprising:
• individually controlling, by control logic coupled to the first group, the second group, and the third group of electrical contacts, ones of the sub-pixels by applying appropriate voltages to the first second, and third groups of electrical contacts to generate or detect light of the first color and the second color.