TECHNOLOGY FOCUS - ELECTRONICS - Preferred Method: The mixture comprises a semiconducting carbon nanotube. The method further comprises providing a purification of the mixture from metallic inclusions, providing a partial separation of the stacked together carbon nanotubes, and providing the contact between the mixture that contains nano-objects and the surface of the substance by a mechanical force, a gravitational force, or an inertial force. At least some part of the substance for some (nonzero) period of time during the energy transfer is kept at a temperature so that the difference between this temperature and a temperature selected from a melting transition temperature of a part of the substance, an evaporation transition temperature of a part of the substance, an activation temperature of a chemical reaction that involves a part of the substance, an activation temperature of a chemical reaction that involves the nano-objects, is less than a maximal difference between temperatures of any parts of the nano-objects at the surface during energy transfer. At some part of the substance for some (nonzero) period of time during the energy transfer is kept at a temperature so that the difference between this temperature and at least one temperature selected from a melting transition temperature of a part of the substance, or an evaporation transition temperature of a part of the substance, is less than a maximal difference between temperatures of any parts of the carbon nanotubes during energy transfer, and some part of the substance during the energy transfer at least one time changes its phase from one phase from a solid phase, a liquid phase, or a vapor phase, to another phase from the same group. The surface of the substance has a shape with a high ratio (greater than or equal to 1.5) of the surface area to the surface area of a flat geometrical figure with the same overall length and width. The energy transfer includes an electromagnetic radiation in the frequency of 100 MHz to 400 THz. It also includes transferring energy in a form selected from a microwave electromagnetic radiation or a far infrared electromagnetic radiation. The separation of the weaker bonded and non-bonded nano-objects from the surface is conducted using a process selected from a separation by a gas flow, a separation by a liquid flow, a separation by an ultrasonication, a separation by an electrostatic force, a separation by a magnetic force, a separation by a gravitational force, a separation by an inertial force, a separation by dissolving other components, and/or a separation by evaporating other components. The energy transfer includes transferring energy by a narrow bandwidth electromagnetic radiation with a photon energy at the edge of resonance electron transitions in the nano-objects in the frequency of 100 MHz to 400 THz. The energy transfer includes transferring energy in a form selected from an electromagnetic radiation in the frequency of 100 MHz to 400 THz, an energy transfer from an electrical source by a direct electrical current that provides heat, and/or an energy transfer from an electrical source by an alternating electrical current that provides heat. The energy transfer includes transferring energy from an electrical source by an electrical current selected from a direct current that provides heat and/or an alternating current that provides heat. The weaker bonded carbon nanotubes and non-bonded carbon nanotubes comprises a bigger than average portion of the semiconducting carbon nanotubes. Sorting nano-objects comprises: (a) providing a contact between an initial mixture that comprises the nano-objects with different electrical conductivities and an electrical conducting surface of a substance selected from a solid, a liquid, and/or a soft matter; (b) providing a deposition of a material in an electrolyte while driving an electrical current through the contact at least during some (nonzero) period of time during this deposition with a thickness of the material layer deposited per unit of time on the nano-objects dependent on their electrical conductivities until at least some of the nano-objects are bonded to the surface with an average strength of this bonding dependent on the nano-objects electrical conductivities; (c) selectively separating mostly the weaker bonded and non-bonded nano-objects from the surface; and (d) obtaining at least one product that comprises the nano-objects with an average electrical conductivity that is different from the average electrical conductivity of the nano-objects in the initial mixture. Increasing the portion of semiconducting nano-objects in a mixture that comprises nano-objects with different electrical conductivities further comprises providing a purification of the mixture from metallic inclusions, and providing a partial separation of the stacked together carbon nanotubes. The gas medium comprises a gas selected from an oxygen gas, an ozone gas, a fluorine gas, and/or an oxidizing agent gas, with a partial pressure that is at least by 10% higher than the partial pressure of this gas in air. At least some part of the gas medium for at least some (nonzero) period of time during the energy transfer is kept at a temperature so that the difference between this temperature and an activation temperature of a chemical reaction that involves the nano-objects and the gas medium is less than a maximal difference between temperatures of any parts of the nano-objects during energy transfer. Preferred Apparatus: The electrical conducting surface, the material, and the electrolyte comprises a chemical element selected from an alkali metal, an alkaline earth metal, carbon, hydrogen, silicon, arsenic, gallium, indium, antimony, copper, gold, palladium, platinum, silver, aluminum, nickel, cobalt, iron, tin, zinc, mercury, and/or lead. The deposition of the material comprises an electroplating deposition with providing an electrical potential difference in the electrolyte between at least some (nonzero) part of the mixture and at least one other electrode in the electrolyte.