In general, most semiconductors exhibit an increase in resistance as temperature increases. This behavior is commonly known as positive temperature coefficient (PTC). Here are a few examples of semiconductors that typically demonstrate increased resistance with increased temperature:
Silicon (Si): Silicon is one of the most widely used semiconductor materials. Its resistivity generally increases with temperature, following a positive temperature coefficient of resistance.
Germanium (Ge): Germanium is another semiconductor material that exhibits increased resistance with rising temperature, displaying a positive temperature coefficient.
Gallium arsenide (GaAs): GaAs is a compound semiconductor that is commonly used in high-frequency applications. It also shows a positive temperature coefficient, with its resistance generally increasing as temperature goes up.
Indium antimonide (InSb): InSb is a narrow-bandgap semiconductor used in infrared detectors and thermoelectric devices. It demonstrates a positive temperature coefficient of resistance, where its resistance increases as temperature rises.
It's important to note that the temperature coefficient of resistance (TCR) may vary among different semiconductor materials and can also depend on doping levels and impurities present in the material. However, the general trend for most intrinsic (undoped) or lightly doped semiconductors is an increase in resistance with increasing temperature.