Step 1: Concept Overview:
This question explores the relationship between different microscopy techniques, focusing on Atomic Force Microscopy (AFM) and its origins.
Step 2: Detailed Explanation:
Scanning Tunneling Microscopy (STM), invented in 1981 by Binnig and Rohrer, revolutionized surface science. However, STM's reliance on tunneling current limited its use to conducting or semiconducting surfaces.
To address this, Binnig, Rohrer, and Quate developed Atomic Force Microscopy (AFM) in 1986. AFM, like STM, is a Scanning Probe Microscope (SPM) that scans a sharp probe across a surface. Unlike STM, AFM measures the minute forces (e.g., van der Waals forces) between the probe and the sample.
AFM's force-based measurement allows imaging of almost any surface, including non-conductive materials such as polymers, glass, and biological samples. Given its operational similarity (probe scanning) and its development to overcome STM limitations, AFM is considered a direct modification and advancement of Scanning Tunneling Microscopy.
Step 3: Concise Answer:
Atomic Force Microscopy was developed from Scanning Tunneling Microscopy principles to enable imaging of non-conductive materials.