Two-dimensional layered nano material transfer device for concave uneven substrate

Abstract

The invention relates to a two-dimensional layered nano material transfer device for a concave uneven substrate, and belongs to the technical field of nano materials. The device comprises a transfer table, a sample table, an optical microscope and a concave uneven substrate, the transfer table comprises a position control mechanism and an extension arm, the position control mechanism is used for controlling the position of the extension arm, a through hole is formed in the extension arm, a hollow cylinder is in threaded connection with the interior of the through hole, and a glass slide is fixed to the bottom of the hollow cylinder; the concave uneven substrate is fixed to the sample table, an objective lens of the optical microscope is located over the concave uneven substrate, the extension arm is located between the concave uneven substrate and the objective lens, and the hollow cylinder is located under the objective lens. The position of the extension arm is adjusted through the position control mechanism, so that the hollow cylinder extends into the groove of the concave uneven substrate, finally, the sample is in close contact with the bottom surface of the groove, then the extension arm slowly ascends, the sample is attached to the bottom surface of the groove of the concave uneven substrate, and then sample transfer is achieved.

Description

technical field [0001] The invention relates to a two-dimensional layered nanomaterial transfer device for a concave uneven substrate, belonging to the technical field of nanomaterials. Background technique [0002] In 2004, scientists from the University of Manchester, UK, Novoselov.K.S and others used tape to successfully peel off single-layer graphene. Because graphene has excellent properties such as very high mechanical strength and electron mobility, it has raised researchers' interest in two-dimensional layered nanomaterials. Broad research interests in the field of materials. In 2010, two-dimensional layered transition metal dichalcogenides such as monolayer MoS 2 Obtained by mechanical peeling method. Compared to graphene, monolayer MoS 2 With a direct band gap of about 1.8 eV, it has very good application prospects in the field of optoelectronics. In the research process, various performance characterizations of such materials are usually required. Currently, t...

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Problems solved by technology

In the research process, it is usually necessary to perform various performance characterizations on such materials. Currently, commonly used transfer devices can only transfer materials to flat substrates for research, but cannot accurately transfer them to concave substrates with uneven surfaces.

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