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APXPS & Chemical Sciences Program

The Ambient-Pressure X-Ray Photoelectron Spectroscopy (APXPS) & Chemical Sciences Program comprises various beamlines and endstations to probe interfacial elemental, chemical, and potential information at solid/gas, solid/liquid, solid/solid, and liquid/vapor interfaces under in situ and operando conditions. Beamline 11.0.2 has an insertion device and 9.3.2 has a bend magnet providing our program’s soft x-ray energies (90–2000 eV and 200–900 eV, respectively), an ideal energy range for probing solid/gas and liquid/vapor interfaces. Beamline 9.3.1 is a tender x-ray bend-magnet beamline providing tender x-ray energies between 2100–6000 eV and has an ideal energy range for probing solid/liquid and solid/solid interfaces. Collectively, this program is looking to reveal interfacial chemical properties to provide insight into a wide range of sciences, including energy science, earth and environmental science, materials science, chemical science, applied science, and physical science.

Beamlines

Personnel

ALS Staff

Ethan Crumlin

Staff Scientist, Program Lead

Monika Blum

Staff Scientist

Oleg Kostko

Research Scientist

Slavomir Nemsak

Staff Scientist

Michael Nguyen

Scientific Engineering Associate

Doctoral and Postdoctoral Researchers

  • Kenneth Goodman, Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2020- )

  • Wenchao Lu, Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2018-)
    VUV photoionization mass spectrometry of gas-phase clusters

  • Henrique Martins, Carnegie Mellon University
    ALS Postdoctoral Fellow (2019-)
    X-ray-standing-wave enhanced photoemission investigation of 2D and quantum materials

  • Jin Qian, ALS and Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2019-)
    Unraveling the hidden chemical physics of (electro)catalytic interfaces

  • Hashini Weeraratna, Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2020-)
    Soft x-ray spectroscopy of water-glycerol aerosols

  • Meirong Zeng, Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2018-)
    Heterogeneous reactions on organic aerosols

  • Xueqiang Zhang, Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2019-)
    Investigating the solid/gas and solid/liquid interfacial properties of Ir under in situ and operando conditions

Visiting Scholars

  • Giuseppina Conti
    Visiting Scientist (2019-), UC Davis

  • Inna Vishik
    Visiting Scientist (2019-), UC Davis

Program Alumni

  • Pinar Aydogan Gokturk, Assistant Professor, Koc University, Turkey; Affiliate Faculty, ALS
    Postdoctoral Researcher (2019-2022)

  • Mikayla Barry, Scientist, The Clorox Company
    ALS Doctoral Fellow (2019-2021), UC Santa Barbara

  • Progna Banerjee, EBI-Shell
    Postdoctoral Researcher (2019-2020), University of Texas at Austin

  • Caroline Bavasso
    Student Assistant (2019), University of Burgundy

  • Sara Blomberg, Lund University
    Visiting Scientist (2019)

  • Andrew Bogdan
    Student Assistant (2020- ), UC Berkeley

  • Domas Buracas
    Student Researcher (2020), UC Berkeley

  • Jun Cai
    Visiting Student (2016-2018), ShanghaiTech University

  • Pengyuan Chen
    Student Assistant (2020), UC Berkeley

  • Shanshan Duan
    Visiting Student (2019-2021), China University of Geosciences

  • Ane Etxebarria, Postdoc, Fritz Haber Institute
    ALS Doctoral Fellow (2018-2019), CIC-energiGUNE

  • Marco Favaro, Staff Scientist, Helmholtz-Zentrum Berlin
    Postdoctoral Researcher (2015-2016)

  • Dana Goodacre
    Doctoral Fellow (2018-2019), University of Auckland

  • Angelique Jarry, Senior Technology Manager, Moses Lake Industries
    Postdoctoral Researcher (2012-2015)

  • Beomgyun Jeong, Senior Researcher, Korea Basic Science Institute
    Postdoctoral Researcher (2014-2016)

  • Amal Kaduwela
    Student Assistant (2020-2021), UC San Diego

  • Heath Kersell, Research Associate, Oregon State University
    Postdoctoral Researcher (2016-2021)

  • Maxime Leclerc
    Visiting Student (2018-2019), University of Sherbrooke

  • Kyung-Jae Lee, Manager, Samsung SDI America Inc.
    Postdoctoral Researcher (2017-2020)

  • Bo-Hong Liu, Assistant Researcher, National Synchrotron Radiation Research Center
    Postdoctoral Researcher (2018-2020)

  • Qiang Lu
    Visiting Student (2015-2017), ShanghaiTech University

  • Qiyang Lu, Assistant Professor, Westlake University
    Postdoctoral Researcher (2019-2020)

  • Doran Martinez
    Student Assistant (2019), California State University

  • Rithvick Panchapakesan
    Student Researcher (2020-2022), UC Berkeley

  • Hongyang Su
    Visiting Student (2017-2019), Hefei National Laboratory for Physical Sciences at the Microscale

  • Meiling Sun
    Postdoctoral Researcher (2018-2020), Wuhan University of Technology

  • Carlos Valero-Vidal
    Postdoctoral Researcher (2015-2019)

  • Lautaro Varas
    Visiting Scientist (2019-2021), University of Costa Rica

  • Ye Wang
    Student Researcher (2020-2021), UC Berkeley

  • Yifan Ye, Joint Center for Artificial Photosynthesis and Chemical Sciences Division, Berkeley Lab
    Postdoctoral Researcher (2020-2021)

  • Yi Yu, Assistant Professor, ShanghaiTech University
    Visiting Postdoctoral Fellow (2016-2018)

  • Dong-Jin Yun, Samsung
    Visiting Scientist (2018-2019)