- Anthracenes, Anthraquinones
- Benzimidazoles
- Benzofurans
- Benzothiadiazoles and Analogs
- Biphenyls
- Carbazoles
- Carbolines
- Fluorenes, Fluorenones
- Naphthalenes
- Small Molecule Semiconductor Building Blocks (Others)
- Perylenes
- Phenanthrenes
- Phenanthrolines
- Phenylpyridines
- Pyrenes
- Pyrimidines
- Secondary Arylamines
- Siloles
- Terphenyls
- Tertiary Arylamines
- Tetraphenylethylenes
- Thiophenes
- Triazines
- Triphenylbenzenes
- Triphenylenes
- Benzothiophenes