Related Experiment Video

Updated: Jun 24, 2026

Coin Cell Battery Chamber Design for Low-temperature Operando Experiments
07:42

Coin Cell Battery Chamber Design for Low-temperature Operando Experiments

Published on: February 17, 2026

Thermoelectric devices: Helping chips to keep their cool

Arun Majumdar

    Nature Nanotechnology
    |April 8, 2009
    PubMed
    Summary

    No abstract available in PubMed .

    More Related Videos

    Fabrication of Bi2Te3 and Sb2Te3 Thermoelectric Thin Films using Radio Frequency Magnetron Sputtering Technique04:22

    Fabrication of Bi2Te3 and Sb2Te3 Thermoelectric Thin Films using Radio Frequency Magnetron Sputtering Technique

    Published on: May 17, 2024

    Related Concept Videos

    Mechanism of heat transfer01:19

    Mechanism of heat transfer

    Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
    Mechanisms of Heat Transfer II01:20

    Mechanisms of Heat Transfer II

    In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
    Mechanisms of Heat Transfer01:14

    Mechanisms of Heat Transfer

    Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
    Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
    Semiconductors01:22

    Semiconductors

    There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
    Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
    Mechanisms of Heat Transfer I01:14

    Mechanisms of Heat Transfer I

    Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
    Non-ohmic Devices00:51

    Non-ohmic Devices

    In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
    Consider a simple circuit consisting of a battery, a diode, and a resistor. A diode...