Device for in situ thermal control and transfer of a monolayer or thin film

Patent metadata

Field	Value
Publication number	US-11031268-B2
Application number	US-201816038232-A
Country	US
Kind code	B2
Filing date	Jul 18, 2018
Priority date	Jul 18, 2017
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

This invention generally relates to a device for preparing and transferring a monolayer or thin film. In particular this present invention is a device for preparing and transferring a monolayer or thin film to a substrate using an improved version of the Langmuir-Schaefer technique, which incorporates in situ thermal control, for instance to heat the supporting substrate before and/or during the transfer process.

First claim

What is claimed is:

1. A device for transferring a monolayer or a thin film comprising
a) a magnetic sample disc; and
b) a heater body encompassing
i. a cartridge heater operatively connected to a temperature controller for heating and temperature control; and
ii. a thermocouple operatively connected to the temperature controller for heating and temperature control; and

c) a magnet positioned at one end of the heater body to provide sufficient force for picking up said magnetic sample disc without physically touching the magnetic sample disc.

2. The device of claim 1 further comprising a supporting substrate connected to the magnetic sample disc by thermally conductive tape or epoxy.

3. The device of claim 2 , wherein the supporting substrate is a layered material.

4. The device of claim 3 , wherein said layered material is graphene, highly ordered pyrolytic graphite (HOPG), MoS 2 , or WS 2 .

5. The device of claim 1 , wherein the heater body further comprises a groove at the bottom edge of the body to facilitate gripping the magnetic sample disc for loading and unloading of the supporting substrate.

6. The device of claim 1 , wherein the heater body further comprises a pin to facilitate operational handling.

7. The device of claim 1 , wherein the heating and temperature control through said thermocouple is operative at an elevated temperature in a range from about 25° C. to about 250° C.

8. The device of claim 1 , wherein heating is provided by way of either pre-heating of the supporting substrate or continuous heating with a constant temperature throughout the transferring process.

9. A method for transferring a monolayer or a thin film comprising the steps of
a) preparing a monolayer or a thin film; and
b) using a device comprising
1) a magnetic sample disc; and
2) a heater body encompassing
i. a cartridge heater operatively connected to a temperature controller for heating and temperature control; and
ii. a thermocouple operatively connected to the temperature controller for heating and temperature control; and

3) a magnet positioned at one end of the heater body to provide sufficient force for picking up said magnetic sample disc without physically touching the magnetic sample disc.

10. The method of claim 9 , wherein said device further comprises a supporting substrate connected to the magnetic sample disc by thermally conductive tape or epoxy.

11. The method of claim 10 , wherein the supporting substrate is a layered material.

12. The method of claim 11 , wherein said layered material is graphene, highly ordered pyrolytic graphite (HOPG), MoS 2 , or WS 2 .

13. The method of claim 9 , wherein said heater body further comprises a groove at the bottom edge of the heater body to facilitate gripping the magnetic sample disc for loading and unloading of the supporting substrate.

14. The method of claim 9 , wherein said heater body further comprises a pin to facilitate operational handling.

15. The method of claim 9 , wherein said heating and temperature control through said thermocouple is operative at an elevated temperature in the range from about 25° C. to about 250° C.

16. The method of claim 9 , wherein heating is provided by way of either pre-heating of the supporting substrate or continuous heating with a constant temperature throughout the transferring process.

17. A device for transferring a monolayer or a thin film comprising
a) a magnetic sample disc;
b) a cartridge heater body operatively connected to a temperature controller for heating and temperature control;
c) a thermocouple operatively connected to the temperature controller for heating and temperature control;
d) a magnet positioned at one end of the cartridge heater body to provide sufficient force for picking up said magnetic sample disc without physically touching the magnetic sample disc; and
e) a supporting substrate connected to the magnetic sample disc by thermally conductive tape or epoxy.

18. The device of claim 17 , wherein the cartridge heater body further comprises a groove at the bottom edge of the body to facilitate gripping the magnetic sample disc for loading and unloading of the supporting substrate.

19. The device of claim 17 , wherein the cartridge heater body further comprises a pin to facilitate operational handling.

20. The device of claim 17 , wherein the heating and temperature control through said thermocouple is operative at an elevated temperature in the range from about 25° C. to about 250° C.

Assignees

• Purdue Research Foundation

Inventors

• Claridge Shelley A
• Hayes Tyler
• Mcmillan David

Classifications

• H10P72/3204 Primary

  using magnetic elements · CPC title

• B05D1/204 Primary

  LB techniques · CPC title

• B05C11/02

  Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface {; Controlling means therefor}(B05C7/00 takes precedence; Hand tools for such purposes B05C17/10); Control of the thickness of a coating {by spreading or distributing liquids or other fluent materials already applied to the coated surface}(controlling supply of liquid or other fluent material B05C11/10) · CPC title

• B05D1/18

  performed by dipping · CPC title

• B05C13/02

  for particular articles · CPC title