Postdoc Research Associate- Atomic-Resolution Optical Spectroscopies w​/Scanning Tunneling Microscopy

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We are seeking a highly motivated Postdoctoral Research Associate to develop advanced optical spectroscopy capabilities—including atomic-resolution electroluminescence (EL), tip-enhanced photoluminescence (PL), and tip-enhanced Raman spectroscopy (TERS)—integrated with multi-probe scanning tunneling microscopy (STM) platforms. This position resides in the Scanning Tunneling Microscopy Group in the Nanomaterials Characterization Section of the Center for Nanophase Materials Sciences Division in the Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL).

The Postdoctoral Research Associate will focus on the development of novel multimodal optical spectroscopy methods and their integration with existing STM platforms. These capabilities will enable atomic-scale imaging and spectroscopy of structural, electronic, and optoelectronic properties in low-dimensional materials and their heterogeneities.

This position offers an exceptional opportunity to conduct research at the intersection of advanced scanning probe microscopy, solid-state single-photon emitters, nanoscale optoelectronics, and fundamental materials science. As a member of our team, the successful candidate will investigate emerging solid-state single-photon emitters and explore the optoelectronic properties of quantum and low-dimensional materials, contributing to both fundamental discovery and the advancement of next-generation technologies.

Major Duties/Responsibilities:

• Design and develop an experimental setup for STM based, atomically resolved electroluminescence (STM-EL), tip-enhanced photoluminescence (STM-PL) or/and Raman Spectroscopy (STM-TERS).
• Validate the capabilities of the new set-up using selected model systems.
• Conduct experimental research to correlate structural, electronic and opto-electronic properties of solid-state single-photon sources such as color centers in hexagonal boron nitride (hBN) and other low-dimensional materials.
• Learn how to operate an existing cryogenic multi-probe STM to develop nanoscale transport measurements under optical excitation.
• Collect, analyze, and interpret experimental data.
• Prepare manuscripts for publication and present research findings at international conferences and workshops.
• Adhere to and promote environmental, safety, health, and quality program requirements.
• Maintain a commitment to ORNL’s values and ethics and contribute to a productive scientific community.
• Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace – in how we treat one another, work together, and measure success.

Basic Qualifications:

• PhD in physics, physical chemistry, materials science, optical sciences, electrical engineering, or a related field obtained within the last 5 years.
• Hands‑on experience with lasers, general optical setups and spectroscopic measurements and/or in tip-enhanced optical imaging and spectroscopy.

Preferred Qualifications:

• Experience in spatially resolved, tip‑enhanced Raman Spectroscopy with STM or scanning near‑field optical microscopy.
• Experience in spatially resolved optical characterization of SPEs.
• Familiarity with collection of ultralow light signals.
• A background in instrument development or detailed understanding of SPM equipment.
• A strong record of innovative research as evidenced by publications in peer‑reviewed journals and presentations at significant conferences.
• Advanced programming and data visualization skills.
• Excellent written and oral communication skills.
• Motivated self‑starter with the ability to work independently and to participate creatively in collaborative teams across the laboratory.
• Ability to function well in a fast‑paced research environment, set priorities to accomplish multiple tasks within deadlines, and adapt to ever‑changing needs.

Special Requirements:

Security, Credentialing, and Eligibility Requirements:

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