1D p-type molecular-based coordination polymer semiconductor with ultrahigh mobility.

Area of Science:

• Materials Science
• Nanotechnology
• Coordination Chemistry

Background:

• One-dimensional (1D) semiconductor nanostructures offer advantages in short-channel effect mitigation and low power consumption.
• A significant limitation in advancing 1D semiconductors is the lack of high-mobility p-type materials.
• Molecular-based materials present a highly designable alternative for developing novel 1D p-type semiconductors.

Purpose of the Study:

• To synthesize and characterize a novel molecular-based 1D p-type semiconductor material.
• To investigate the potential of coordination chemistry in designing materials with enhanced carrier transport properties.
• To address the scarcity of high-performance 1D p-type materials for electronic applications.

Main Methods:

• Synthesis of a molecular-based 1D p-type material, Cu-HT (p-hydroxy thiophenol), guided by coordination chemistry principles.
• Characterization of Cu-HT, focusing on its structural features, including orbital overlap, surface modification, and Cu-Cu interactions.
• Measurement of the material's electrical properties, specifically hole mobility.

Main Results:

• The synthesized Cu-HT material exhibits excellent hole mobility of 27.2 cm² V⁻¹ s⁻¹.
• This mobility value is among the highest reported for 1D molecular-based materials.
• The performance of Cu-HT surpasses that of amorphous silicon and most 1D inorganic materials.

Conclusions:

• Coordination polymers hold significant potential for optimizing carrier transport in semiconductor materials.
• The development of Cu-HT represents a major advancement in the synthesis of high-performance 1D p-type semiconductor materials.
• This work opens new avenues for designing molecular-based materials for next-generation electronics.