Does indirect semiconductor material has lower thermal noise?
Best insight from top research papers
Indirect semiconductor materials do not necessarily have lower thermal noise. Thermal noise in semiconductors is generated by the random motion of charge carriers due to thermal excitation. The intensity of this noise depends on the device type, manufacturing process, and operating conditions . Different factors can contribute to thermal noise in semiconductors, such as spatial charge carrier density variations . The presence of traps that intermittently generate generation-recombination pulses can also contribute to 1/f noise under drift and thermal agitation . Therefore, the thermal noise characteristics of a semiconductor material cannot be solely determined by whether it is indirect or direct. Other factors, such as the specific device structure and doping configurations, also play a significant role in determining the level of thermal noise in semiconductor devices .
Answers from top 4 papers
More filters
| Papers (4) | Insight |
|---|---|
| The provided information does not mention anything about the thermal noise of indirect semiconductor materials. | |
| The given information does not provide any specific details about the thermal noise characteristics of indirect semiconductor materials. | |
| The paper does not specifically mention whether indirect semiconductor materials have lower thermal noise. | |
01 Jan 2022 | The paper does not provide information about the thermal noise in indirect semiconductor materials. |
Related Questions
What are the most common traditional thermal interface materials used for ev battery?4 answersTraditional thermal interface materials (TIMs) commonly used for Electric Vehicle (EV) batteries include pastes, adhesives, gels, and gap fillers. These materials play a crucial role in maintaining cell temperature, preventing electrolyte leaks, and ensuring structural integrity under various crash loads. Some specific components found in these TIMs are pentaerythritol oleate, aluminum powders, zinc oxide powders, zinc oxide nanoparticles, non-reactive polyurethane prepolymer, and aluminum trihydroxide. The challenge lies in balancing the structural strength of TIMs with their thermal conductivity to meet both mechanical and thermal requirements effectively. Additionally, the use of phase change materials (PCMs) like Capric acid has been explored for passive cooling in EV battery packs, showcasing promising results in temperature management.
How to reduce tempertature dependent noise in signal processing?5 answersTo reduce temperature dependent noise in signal processing, one approach is to use a noise reduction and temperature control system based on a semiconductor refrigeration mechanism. This system creates a low-temperature working environment for the circuit chip, effectively reducing multiple types of noise related to temperature and improving the signal-to-noise ratio. Another method is to reflect the data value of an adjacent pixel and a gain value depending on the data value of the selected pixel on the selected pixel itself, thereby removing noise. Additionally, a noise reduction filter can be implemented using intensity and differential intensity values generated from sampling and sorting the data signals, along with a weighting function to amplify or reduce different portions of the data set distribution. This filter can be used to reduce noise components and increase the useful signal components, thereby increasing the signal-to-noise ratio.
What materials dampen sound?4 answersMaterials that dampen sound include bagasse fiber, polypropylene plastic waste, paper sludge, butyl rubber, fillers, tackifier, plaster, viscoelastic polymer, and Biot type porous materials. Bagasse fiber, polypropylene plastic waste, and paper sludge can be used as composite panels to muffle sound and reduce noise. The compound material for purifying air includes a sound-absorbing layer, a functional layer containing chlorine dioxide, and a butyl rubber layer. Metal-organic framework materials can be used as acoustic attenuation materials in building construction. Building materials can include a dampening layer containing plaster and a viscoelastic polymer. Porous materials and film laminated panels can also be used for sound insulation.
Energy-efficient materials Low utilization heat island effect?5 answersEnergy-efficient materials can be utilized to mitigate the heat island effect. Cool roofs, such as those coated with high reflective and high emissivity coatings, can reduce the heat island effect and energy consumption in buildings. Thermochemical materials, such as microfibers produced by electrospinning, offer potential for energy recovery in low-temperature ranges and can be used in thermal energy storage systems. Urban heat island effects can be mitigated through the use of energy-efficient materials, such as high reflectivity materials and green infrastructure like green roofs and shaded streets. Additionally, light-colored pavement materials can reflect sunlight and reduce excess air temperatures in cities, contributing to energy savings and smog reductions.
How can thermal insulating acoustic ceiling tiles be used to reduce noise pollution?5 answersThermal insulating acoustic ceiling tiles can be used to reduce noise pollution by providing better acoustic resistance and sound insulation properties. Guna et al.found that reinforcing gypsum ceiling tiles with natural fibers such as wool and coir improved their acoustic resistance. The blend of wool and coir fibers enhanced the strength and modulus of the tiles, resulting in better sound insulation. Additionally, the use of a sprayable, thermal and acoustic insulating surfacing based on cork, as proposed by Vico, can further enhance the sound insulation properties of the ceiling. The cork particles in the surfacing material contribute to reducing noise transmission. Furthermore, the compound thermal insulation ceiling described by Feiincludes a foam glass layer, which can effectively absorb and dampen sound waves, thereby reducing noise pollution.
How do I reduce GPU noise?7 answers