Challenges and Opportunities in 2D Optoelectronic Materials: Towards Enhanced Performances and Scalability

A special issue of Crystals (ISSN 2073-4352).

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 203

Special Issue Editors

E-Mail Website
Guest Editor
Instituto de Recursos Naturais, Itajubá 37500-007, MG, Brazil
Interests: ferrites; electrical and magnetic materials; civil engineering; concrete

E-Mail Website
Guest Editor
Institute of Physics and Chemistry, Federal University of Itajubá, Itajubá 37500-903, MG, Brazil
Interests: 2D optoelectronic materials; quantum efficiency; solar cells; mathematical modeling; semiconductors; graphene oxide
School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
Interests: 2D materials; chemical vapor deposition; optoelectronics; sensors; optical fiber sensing; crystal growth
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Special Issue Information

Dear Colleagues,

Two-dimensional optoelectronic materials, such as graphene and molybdenum disulfide (MoS2), feature unique two-dimensional structures with distinctive optical and electronic properties, making them promising for devices such as photodetectors, solar cells, and light emitters. However, these materials also face several challenges, including:

  1. Quantum efficiency: The quantum efficiency of these materials often falls short of that of traditional materials. Enhancing their photon-to-electron conversion rate is a crucial challenge.
  2. Degradation and stability: 2D materials can be susceptible to degradation from environmental factors such as moisture and oxygen, limiting their lifespan and effectiveness in devices.
  3. Processing and manufacturing: Scaling up the production of these materials with consistent quality is a hurdle. Efficient and cost-effective manufacturing methods are needed to make these materials commercially viable.
  4. Integration with conventional electronics: Integrating 2D materials with conventional electronics is a complex technical challenge. Ensuring compatibility and effectiveness in this integration is crucial for practical applications.
  5. Spectral limitations: Some 2D materials have limitations regarding the spectrum of light they can absorb and emit. Expanding their spectral range is important for broadening their applications.
  6. Manipulation and control: Precisely controlling the properties of these materials, such as modulating their energy bands, is essential to optimize their performance in optoelectronic devices.
  7. Non-radiative photoluminescent effect: Many 2D materials exhibit a non-radiative photoluminescent effect, where absorbed energy is dissipated as heat rather than emitted as light. This reduces efficiency in emissive devices.
  8. Scalability: While the promising properties of these materials are often demonstrated in the laboratory, making their production scalable for real-world applications is a significant challenge.

Overcoming these challenges requires ongoing research and innovation, with collaboration between materials science, device engineering, and manufacturing technology. This Special Issue addresses these challenges, aiming for a more comprehensive and effective exploration of 2D optoelectronic materials in various technological applications.

Dr. Ribeiro Vander Alkmin dos Santos
Dr. Adhimar Oliveira
Dr. Lin Gan
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • 2D optoelectronic materials
  • challenges
  • quantum efficiency
  • scalability
  • integration
  • spectral limitations
  • photoluminescent effect

Published Papers

There is no accepted submissions to this special issue at this moment.
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