Ready-to-transfer two-dimensional materials using tunable adhesive force tapes

Ready-to-transfer two-dimensional materials using tunable adhesive force tapes

February 2024 | Maki Nakatani, Satoru Fukamachi, Pablo Solis-Fernández, Satoshi Honda, Kenji Kawahara, Yuta Tsuji, Yosuke Sumiya, Mai Kuroki, Kou Li, Qiunan Liu, Yung-Chang Lin, Aika Uchida, Shun Oyama, Hyun Goo Ji, Kenichi Okada, Kazu Suenaga, Yukio Kawano, Kazunari Yoshizawa, Atsushi Yasui & Hiroki Ago
A novel method for transferring two-dimensional (2D) materials using UV-tunable adhesive tapes is introduced. This method enables the efficient and high-quality transfer of monolayer graphene and other 2D materials such as transition metal dichalcogenides (TMDs), hexagonal boron nitride (hBN), and bilayer graphene (BLG) onto various substrates. The adhesive force of the tape is controlled by UV light, allowing precise detachment of the transferred material from the growth substrate. The process is solvent-free and can be applied to flexible and non-planar surfaces, including paper, ceramics, and plastics. The method achieves a transfer yield of over 99% for monolayer graphene, with high electrical and optical quality. The UV tape allows for the controlled stacking of 2D materials with precise twist angles, enabling the fabrication of heterostructures. The method is also suitable for large-area transfers and can be used to cut and transfer small pieces of 2D materials for patterned device fabrication. The UV tape transfer is efficient, simple, and scalable, making it suitable for industrial applications. The method has been demonstrated for transferring monolayer graphene, TMDs, and hBN, with high-quality results. The UV tape transfer is also applicable for fabricating infrared and terahertz sensors, as well as for passive photo-thermal imaging devices. The method offers a versatile and reliable approach for the transfer of 2D materials, enabling the development of advanced electronic and optoelectronic devices.A novel method for transferring two-dimensional (2D) materials using UV-tunable adhesive tapes is introduced. This method enables the efficient and high-quality transfer of monolayer graphene and other 2D materials such as transition metal dichalcogenides (TMDs), hexagonal boron nitride (hBN), and bilayer graphene (BLG) onto various substrates. The adhesive force of the tape is controlled by UV light, allowing precise detachment of the transferred material from the growth substrate. The process is solvent-free and can be applied to flexible and non-planar surfaces, including paper, ceramics, and plastics. The method achieves a transfer yield of over 99% for monolayer graphene, with high electrical and optical quality. The UV tape allows for the controlled stacking of 2D materials with precise twist angles, enabling the fabrication of heterostructures. The method is also suitable for large-area transfers and can be used to cut and transfer small pieces of 2D materials for patterned device fabrication. The UV tape transfer is efficient, simple, and scalable, making it suitable for industrial applications. The method has been demonstrated for transferring monolayer graphene, TMDs, and hBN, with high-quality results. The UV tape transfer is also applicable for fabricating infrared and terahertz sensors, as well as for passive photo-thermal imaging devices. The method offers a versatile and reliable approach for the transfer of 2D materials, enabling the development of advanced electronic and optoelectronic devices.
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