Ansys Insight: CHARGE电学仿真发散的常见原因
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发散常见的错误信息是： The program terminated due to an error: Initialization failed to converge charge update due to numerical failure. For instructions on how to troubleshoot this issue, please refer to this: （Troubleshooting convergence issues） 个别版本此链接不工作。 Error: there was an unknown parallel error. The error code is 9010, the process number is 0 通常与材料特性、网格尺寸与质量、算法等有关。请参见这两个帖子： Ansys Insight: CHARGE电学仿真常见问题解决方案集锦 Ansys Insight: CHARGE电学仿真文件添加新材料的常见问题 电场 在局部电场较强，或者电场梯度较大的地方，可能需要较细的网格。 高功率 当有光吸收时，请检查所设置的光功率不要特别大，要知道DEVICE很小，可能不能承受很强的光功率； 电压步长 当电压比较小时没有问题，电压高时发散，一般是电压步长太高了，这个情况在仿真雪崩现象时可能更常见。此时需要分几个电压段仿真，后面的文件电压步长变小，并以前面仿真的结果作为初始文件Load上来。 用2D检查 如果３D发散，仿真时间长，不容易找出原因，可以先用２D做个截面上的仿真，这样仿真快，可以帮助尽快找出问题。当然，有时２D没有问题，３D有问题也是可能的。 参杂 有的时候给出的参杂浓度太高了，建议CHARGE用户有Cleanroom的实战经验，设置一些参数时会有一定根据。 fermi statistics 在一些情况下，特别是高参杂情况下，波尔茨曼统计可能不适用，此时要用费米统计
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