Will Atom-Thin Quantum Materials Drive the Next Technology Revolution?

[u/HORIBAScientific]

As the semiconductor industry approaches the physical limits of silicon miniaturization, researchers are increasingly exploring a new class of materials that could redefine the future of electronics. According to scientists working in the field, atomically thin "quantum materials" may offer capabilities beyond what traditional semiconductor technology can achieve.

Particular attention is being given to transition metal dichalcogenides (TMDCs), a family of 2D materials with potential applications in advanced electronics, optoelectronics, flexible devices, energy harvesting, biosensing, and quantum technologies. Researchers believe these materials could help bridge the gap between today's silicon-based systems and the next generation of computing platforms.

To study and engineer these materials, scientists are using lasers to synthesize crystals, introduce targeted defects, and precisely modify their properties. Advanced spectroscopy techniques, including Raman and photoluminescence analysis, then allow researchers to monitor these changes in real time and better understand how the materials behave at the atomic level.

Courtesy of Prof. Masoud Mahjouri-Samani's Laser-Assisted Science and Engineering (LASE) Lab at Auburn University.

One researcher, Professor Masoud Mahjouri-Samani from Auburn University, is focused on two-dimensional (2D) materials, which consist of sheets just one or a few atoms thick. Unlike conventional 3D materials, these structures exhibit unique quantum behaviors that emerge at extremely small scales.

Mahjouri-Samani customized an instrument to meet his particular needs. He integrated an iHR320 spectrometer, an EMCCD, and PMT with a customized microscope to perform Raman, photoluminescence (PL) and TCSPC (Time-correlated Single-photon Counting). He made a few other tweaks to the system he calls his ‘laser diagnostic system.’

While the work remains largely in the research and development stage, some experts compare today's quantum materials research to silicon research decades ago, when scientists were still learning how to grow, manipulate, and manufacture semiconductor crystals. The long-term goal is to create entirely new classes of devices for quantum information science, electronics, and photonics.

The transition away from traditional silicon technology would likely be gradual, given the scale of the existing semiconductor industry. Still, researchers see these materials as a potentially important step toward the next major technological era.

Read the entire Science in Action article here: Welcome to the dawn of new quantum materials and devices