Xiaoji Xu

Associate Professor
Graduate Admissions Director
(610) 758-6271
Sinclair Laboratory, Room 310C
Research Interests: 
Chemical Analysis
Infrared Microscopy
Peak Force Infrared Microscopy
Scanning Probe Microscopy
Time-Resolved Spectroscopy
Teaching Interests: 
Physical Chemistry
Analytical Chemistry
Scanning Probe Microscopy

Beckman Young Investigator Award, 2018

NSF CAREER Award, 2019

Alfred P. Sloan Research Fellowship, 2020

Camille Dreyfus Teacher-Scholar Award, 2021

Our research focus is to develop methods and instruments for chemical measurement and imaging at the nanoscale with < 10 nm spatial resolution. We employ two infrared nanoscale imaging methods: 1. Scattering-type scanning near-field optical microscopy (s-SNOM) and 2. Peak force infrared microscopy.

We are interested in studying the organization and interaction of molecules, materials, and structures with spatial heterogeneity. Among many possible systems, we are particularly interested in nanoscale characterizations of polymers, aerosols, polaritonic materials, and biological samples.