Haotian Long

Current Research

As a Ph.D. student at the University of Pennsylvania, I am now studying the directed self-assembly (DSA) behavior of soft matter. With the application of external fields, we are able to guide the organization of nanostructures within soft materials, including small-molecule mesogen, liquid crystalline polymer, and nanocomposites. Utilizing DSA techniques, we design materials that exhibit intricate functionalities with promising applications in lithography, photonics, and ion-conducting membranes.

Specifically, my research aims to develop methodologies for aligning materials with spatially varying magnetic fields at various length scales. By precisely controlling both the intensity and direction of the magnetic field, we are able to manipulate the orientational and positional orders within the soft materials. This capability enables us to program and pattern material structures intentionally. Consequently, my research could provide deeper insights into field-matter and matter-matter interactions, leading to the creation of responsive and functional materials.

Previous Research

My previous research as an undergraduate at the South China University of Technology was about utilizing machine learning to investigate the chiroptical effects of chiral noble metal nanoparticles.