Method to Manufacture Transition Metal Dichalcogenides Quantum Dots

Technology Overview

Semiconducting transition metals dichalogenides (TMDs) nanomaterials form the key nanoelectronic components in nanoelectronics. As the dimensions are important characteristics when designs are in the nanoscale, obtaining the raw nanomaterials with specific parameters becomes paramount in the manufacturing of future chips built on nanoelectronics concepts.

Current transition metal dichalogenides (TMD) nanomaterials are made from the top down methods; processing from bulk millimeter scale large crystal to nanomaterials dimensions using physical means like milling and exfoliation. To process from millimeter scale to nanometer scale is too tedious, expensive and of too low size quality to be industrially relevant. Moreover, top down approaches will necessitate the abundance of those bulk crystals of the specific TMD in the earth’s crust in the first place.

This technology offers a bottom-up approach that addresses the current challenges. It allows scaling up to hundreds of grams with ease, and purify, dry and store the quantum dots for months without loss in function. Moreover, incorporate other features like defects (and dopants) can be incorporated. This feature is impossible when exfoliating from what-you-see-is-what-you-get bulk crystals. Therefore, this technology is ideal for quantum dots manufacturers who want to produce small-sized quantum dots and scale up their production at a highly reduced cost.

Technology Features & Specifications

  • Able to produce TMD quantum dots of consistent sizes, ranging from 3 - 10 nm.
  • Possible to engineer atomic defects into the crystal lattice of the TMD quantum dots as part of this bottom-up synthesis.
  • No harsh conditions used typically in hydrothermal treatment is required.
  • Can scale up to hundreds of grams with ease.
  • Enable the production of rare TMDs and TMDs that do not exist in nature.

Potential Applications

This technology has potential to be applied in (but not limited to) the following:

  • Cancer therapy
  • Antibacterial applications
  • Computing and memory
  • Electronics and displays
  • Optoelectronic devices
  • Optical components in telecommunications and image sensors
  • Security applications
  • Solar power applications

Market Trends and Opportunities

The global quantum dots market was $610 million in 2016 and it is estimated to grow at a compound annual growth rate of 41.3% to $3.4 billion by 2021. Increasing demand for better performing and high resolution devices is a major driving force to adopt this technology into various application areas. Major application is in the LED display and monitor. However, as the process of manufacturing blue quantum dots in size that is smaller than average is very difficult over other colors of quantum dots, it has been challenging to adopt quantum dots in display and monitor products. Therefore, a technology that can manufacture small blue quantum dots will revolutionise the industry. 

Customer Benefits

This technology offers the following advantages:

  • Cheap
  • Fast
  • Highly scalable
  • Full control on the transition metal with the chalogenides
  • No harsh treatment is required
  • Able to emit blue fluorescence

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