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Openai/69174844-9774-8012-8b69-32262ca5e35a
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==== ### ==== : 相关章节: '' Chapter 5: Metal–Semiconductor Contacts - §5.3 Schottky Barrier Diodes - §5.4 Ohmic Contacts - 附录部分:Thermionic emission, Field emission (FE), Thermionic-field emission (TFE) - 引入 E₀₀ 的定义与判据: E00=qℏ2NDm∗εsE_{00} = \frac{q\hbar}{2}\sqrt{\frac{N_D}{m^{''}\varepsilon_s}}E00=2qℏm∗εsND - 给出 三种输运机制 对应的 I–V 模型: - TE:热发射主导 - TFE:热力场发射 - FE:冷场发射(纯隧穿) - 提供了势垒宽度 WWW 和势垒场强 FFF 的近似公式,并用图表比较何时欧姆接触出现。 👉 优点: 详细推导 + 公式 + 数值例 + 图形 + 应用判据。 👉 这是解释“势垒宽度 vs 高度”关系最权威的版本。 ===== : ===== 相关章节: * Chapter 9: Metal–Semiconductor and Semiconductor Heterojunctions - 重点讲了势垒高度的来源与界面物理意义。 - 对“欧姆 vs 肖特基”的区分给出了直觉图。 - 有一个图直接展示:随着掺杂增加,势垒高度不变但宽度减小,电流由热发射 → 隧穿过渡。 - 引入 E₀₀ 的能量判据(简略于 Sze,但物理讲得更通俗)。 👉 优点: 文字浅显,适合快速建立物理图像。 👉 缺点: 公式推导不如 Sze 完整。 ===== : ===== 相关章节: * Chapter 16: Metal–Semiconductor Contacts - 很系统地讲了耗尽层、势垒调制、隧穿模型。 - 用 WKB 推导隧穿概率,并画出了 TE → TFE → FE 三阶段的转变示意。 - 对“本质区别是势垒宽度,而非势垒高度”有明确说明。 👉 优点: 推导细致、图像丰富。 👉 缺点: 有些符号定义和现代教材略异(但公式物理完全一致)。
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