METHOD FOR DEPOSTING A FUNCTIONAL MATERIAL ON A SUBSTRATE
A method for depositing a functional material on a substrate is disclosed. A plate having a first surface and a second surface is provided. A layer of light scattering material is applied onto the first surface of the plate, and a layer of reflective material is applied onto the second surface of the plate. After a group of wells has been formed on the second surface of the plate, a layer of light-absorbing material is applied on the second surface of the plate. Next, the wells are filled with a functional material. The plate is then irradiated with a pulse of light to heat the light-absorbing material in order to generate gas at an interface between the light-absorbing material and the functional material to release the functional material from the wells onto a receiving substrate.
1 . A method for depositing a functional material on a substrate, said method comprising:
providing a plate having a first surface and a second surface;
removing materials from said second surface to form a plurality of wells within said second surface, wherein said plurality of wells have different depths;
depositing a light scattering material layer on said first surface:
depositing a light absorbing material layer on said second surface including said plurality of wells:
filling said plurality of wells with a functional material; and
irradiating said plate with pulsed light to heat said light-absorbing material in order to generate gas at an interface between said light-absorbing material and said functional material to release said functional material from said plurality of wells onto a receiving substrate.
2 . The method of claim 1 , wherein said plate is optically transparent.
3 . The method of claim 1 , wherein depths of said plurality of wells range from 10 nm to 1,000 μm.
4 . The method of claim 1 , wherein said light-absorbing material is tungsten.
5 . The method of claim 1 , wherein said removing includes laser drilling.
6 . The method of claim 1 , wherein said removing includes etching.
7 . The method of claim 1 , wherein said method further includes depositing a light scattering material layer on said second surface of said plate.
8 . The method of claim 1 , wherein said method further includes roughening said first surface.
9 . The method of claim 1 , wherein said second surface is non-planar.
10 . The method of claim 1 , wherein said receiving substrate is non-planar.
11 . A method for depositing a functional material on a substrate, said method comprising:
providing a plate having a first surface and a second surface:
removing materials from said second surface to form a plurality of wells within said second surface, wherein said plurality of wells have different depths;
coating said second surface of said plate except said plurality of wells with a light reflecting material layer;
depositing a light absorbing material layer directly on said light reflecting material layer and inside said plurality of wells;
filling, said plurality of wells with a functional material; and
irradiating said plate with pulsed light to heat said light-absorbing material in order to generate gas at an interface between said light-absorbing material and said functional material to release said functional material from said plurality of wells onto a receiving substrate.
12 . The method of claim 11 , wherein said plate is optically transparent.
13 . The method of claim 11 , wherein depths of said plurality of wells range from 10 nm to 1,000 μm.
14 . The method of claim 11 , wherein said light-absorbing material is tungsten.
15 . The method of claim 1 , wherein said removing includes laser drilling.
16 . The method of claim 1 , wherein said removing includes etching.
17 . The method of claim 11 , wherein said method further includes depositing a light scattering material layer on said second surfaces of said plate before said deposition of said reflective layer.
18 . The method of claim 11 , wherein said second surface is non-planar.
19 . The method of claim 11 , wherein said receiving substrate is non-planar.