4-(2,3-dihydro-1,3-dimethyl-1H-benzimidazol-2-yl)-N,N-dimethylbenzenamine (DMBI-H) is a very successful dopant for n-type organic semiconductors. It is efficient over a large range of polymers and small molecule derivatives, commercially available, soluble in established processing solvents and generally considered to be air stable. Yet, on a closer look not all that glisters is gold. We show that DMBI-H does indeed decompose in the processing solvent, but the process does not negatively impact performances. Its main decomposition product acts as a nucleating agent for DMBI-H with the overall effect of boosting conductivity of the final doped P(NDI2OD-T2) films. Such results, confirmed by control experiments performed with a different nucleating agent, shine a light on the crucial role played by solid-state microstructure in DMBI-H doped semiconductors and hints a viable way to its optimization

中文翻译：

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4-（2,3-二氢-1,3-二甲基-1H-苯并咪唑-2-Yl）-N，N-二甲基苯胺（DMBI-H）N型掺杂剂的新发现：毕竟不稳定它不一定重要

4-（2,3-二氢-1,3-二甲基-1H-苯并咪唑-2-基）-N，N-二甲基苯胺（DMBI-H）是一种非常成功的n型有机半导体掺杂剂。它在大范围的市售聚合物和小分子衍生物上均有效，可溶于既定的加工溶剂中，通常被认为是空气稳定的。然而，仔细观察，并不是所有闪闪发光的都是黄金。我们显示DMBI-H确实会在加工溶剂中分解，但该工艺不会对性能产生负面影响。它的主要分解产物充当DMBI-H的成核剂，具有提高最终掺杂P（NDI2OD-T2）薄膜电导率的总体效果。此类结果已通过使用其他成核剂进行的对照实验得到了证实，