NOVELTY - The method comprises cleaning (102) a substrate, filling a first ink jet cartridge with a first chemical solution, depositing (104) the first chemical solution on the substrate with the first inkjet cartridge, filling a second ink jet cartridge with a second chemical solution, depositing (106) the second chemical solution on the substrate with the second inkjet cartridge to mix with the first chemical solution and to form gold nanoparticles on the substrate, and heating (108) the substrate at a temperature of 55-140 degrees C.    USE - The method is useful for depositing nanoparticles on a substrate with inkjet printing, where: the nanoparticles are useful in a LED and a plasmonic solar cell; and the LED is useful in a personal data assistant, a tablet computer, a laptop, a smartphone, a cellular phone, a portable game console, and/or a game console accessory.    ADVANTAGE - The method is capable of easily, controllably and economically depositing the nanoparticles on the substrate with high yield and throughput and desired composition, size and size distribution.    DETAILED DESCRIPTION - The method comprises cleaning (102) a substrate, filling a first ink jet cartridge with a first chemical solution, depositing (104) the first chemical solution on the substrate with the first inkjet cartridge, filling a second ink jet cartridge with a second chemical solution, depositing (106) the second chemical solution on the substrate with the second inkjet cartridge to mix with the first chemical solution and to form gold nanoparticles on the substrate, heating (108) the substrate at a temperature of 55-140 degrees C, selecting a temperature for heating the substrate based on a desired size of the nanoparticles, and integrating the nanoparticles into an optoelectronic device comprising LED and into a plasmonic solar cell. The step of heating the substrate comprises evaporating the solvents of the chemical solutions. The first inkjet cartridge comprises a different cartridge than the second inkjet cartridge. The nanoparticles comprise a binary semiconductor and a ternary semiconductor.    DESCRIPTION OF DRAWING(S) - The diagram shows a flow chart of a method for depositing nanoparticles on a substrate with inkjet printing.    Depositing nanoparticles on a substrate (100)    Cleaning the substrate (102)    Depositing a first solution on a substrate with an inkjet printer (104)    Depositing a second solution on a substrate with an inkjet printer (106)    Heating the substrate. (108)