Van der Waals integration

<p>van der Waals integration is a physical assembly strategy, in which prefabricated building blocks are physically assembled together through weak <a href="/facts/Van_der_Waals_interactions/jyGU8Vh9">van der Waals interactions</a>. This concept was originally proposed in <a href="/facts/Two-dimensional_materials/YnsFhbWg">two-dimensional materials</a> research community to construct 2D <a href="/facts/Van_der_Waals_heterostructures/67LBEUN2">van der Waals heterostructures</a>.
</p><p>A key benefit of van der Waals integration is that it offers an alternative way to integrate highly disparate material systems with unprecedented degrees of freedom, regardless of their <a href="/facts/Crystal_structure/bJ4bCeHd">crystal structures</a>, <a href="/facts/Lattice_parameter/h3gMKk6V">lattice parameters</a>, or orientation. As this physical assembly method does not involve one-to-one <a href="/facts/Chemical_bond/ArNUMnIB">chemical bonds</a> between adjacent layers, the van der Waals integration approach can thus enable the creation of a wide spectrum of series of artificial van der Waals heterostructures and novel <a href="/facts/Moir%25C3%25A9_pattern/nvxDu1qK">moiré</a> <a href="/facts/Superlattice/nguy8U7X">superlattices</a> through layer transfer. Highly disparate material systems with diverse functionalities can be integrated together with atomically clean and electronically sharp interfaces., eliminating the rigorous <a href="/facts/Lattice_matching/h3gMKk6V">lattice matching</a> and process compatibility requirements that applied <a href="/facts/Epitaxy/etjSn1D3">epitaxy</a> This approach has proven fruitful in 2D photonics, polariton physics, hetero-integrated photonics, and wearable optoelectronic applications.
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Van der Waals integration open-in-new

Van der Waals integration