In graphs of the electronic band structure of solids, the band gap refers to the energy difference (often expressed in electronvolts) between the top of the valence band and the bottom of the conduction band in insulators and semiconductors. It is the energy required to promote an electron from the valence band to the conduction band.

2010年7月23日 · When electrons get excited (by getting heated, or by being hit with a particle of light, known as a photon), they can jump across the gap. If an electron in a crystal gets hit by a photon that has enough energy, it can get excited enough to jump from the valence band to the conduction band, where it is free to form part of an electric current.

禁带宽度(Band gap)是指一个带隙宽度(单位是电子伏特(ev))，固体中电子的能量是不可以连续取值的，而是一些不连续的能带，要导电就要有自由电子或者空穴存在，自由电子存在的能带称为导带（能导电），自由空穴存在的能带称为价带（亦能导电）。

能隙 （band gap或energy gap）也译作 能带隙 （energy band gap）、 禁带宽度 （width of forbidden band），在 固体物理学 中泛指 半导体 或 绝缘体 的 价带 顶端至 传导带 底端的能量差距。

能带间隙（band gap）理论上，研究价带间隙的方法通常是通过在量子化学层面上基于 Hartree– Fock (HF) method 或 density functional theory (DFT)进行研究。 因此，大量的手稿给出了中性分子的分子轨道（MO）计算…

A band gap is the distance between the valence band of electrons and the conduction band. Essentially, the band gap represents the minimum energy that is required to excite an electron up to a state in the conduction band where it can participate in conduction.

The range of forbidden energy levels between the highest level in the valence band and the lowest energy in the conduction band is called the band gap. The material’s band gap is determined by its molecular structure; the periodic, crystalline atomic structure of semiconductors gives their valence electrons the ability to become conductive at ...

带隙电压基准电路在单片机中占据着至关重要的地位。它能够为各种模拟集成电路提供稳定的参考电压，确保电路的正常运行。例如，在高精度的比较器中，带隙电压基准电路可以提供一个精确的参考电压，使得比较结果更加准确可靠。在 a/d 或 d/a 转换器中，带隙电压基准电路能够为转换过 …

2025年2月21日 · Band gap, in solid-state physics, a range of energy levels within a given crystal that are impossible for an electron to possess. Generally, a material will have several band gaps throughout its band structure (the continuum of allowed and forbidden electron energy levels), with large band gaps

2024年1月25日 · 本文介绍了 带隙电路 的一些基本信息，带隙电路被广泛用于产生与温度无关的参考电压。. 带隙参考技术 是用于产生与温度无关的参考电压的最常用的方法之一。. Bob Widlar，这位传奇的电子工程师，在20世纪60年代末为今天的带隙电压基准奠定了基础。