Gajadhar Joshi

Gajadhar Joshi

Postdoctoral Researcher-Chemistry


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Gajadhar Joshi has joined NREL as a postdoctoral researcher in the Chemistry and Nanoscience Center working with Justin Johnson’s group. His work is focused on the development of the optically detected magnetic resonance (ODMR) setup to study the coherence properties of spin pairs generated by optical excitation in the organic semiconductors. The main focus is the optimization of coherence behavior of triplet pairs generated after the singlet fission in the organic semiconductors.

As a postdoctoral research associate at Amherst College, he focused on enhancing the spin coherence time of molecular nanomagnets using the technique of atomic clock transition at zero-field splitting. The main purpose was to explore their possible uses as spin-based qubits for quantum computing architecture. 

During his doctoral research at the University of Utah, he learned how to build the experimental setup for electrically detected magnetic resonance (EDMR) and ODMR including the fabrication of suitable resonator systems for resonant excitation. His graduate work focused on investigating the effect of spin-orbit coupling on the charge carrier spins in the polymer based organic semiconductor thin film devices. A multifrequency EDMR over a four order magnetic field range was carried out to unravel the effect of spin-orbit coupling on charge carrier spins in the organic semiconductors.

For additional information, see Gajadhar Joshi's LinkedIn profile

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Research Interests

Coherence behavior of triplet exciton pairs generated by singlet fission in organic semiconductors

Transient electron spin resonance in organic semiconductor thin-film devices to study the efficient signlet fission in these materials

Magnetoresistance behavior of the organic semiconductor thin-film devices

Education

Ph.D., Physics, University of Utah

M.S., Physics, University of Utah

B.S., Physics, Tribhuvan University

Professional Experience

Postdoctoral Research Associate, Amherst College (2018–2020)

Graduate Research Assistant, University of Utah (2015–2018)

Graduate Teaching Assistant, University of Utah (2011–2014)

Associations and Memberships

Member, American Physical Society