TCI D6182, 4-(1,3-Dimethyl-2,3-dihydro-1H-benzimidazol-2-yl)-N,N-diphenylaniline, is a dihydrobenzimidazole-class compound carrying a triphenylamine group at the two position. Compounds from this family are commonly known as organic electron donors and hydride donors, and within the TCI catalogue this material is placed among the product group intended for perovskite solar cell fabrication. Its role in the laboratory is that of an n-type dopant: a small-quantity additive introduced into an organic semiconductor layer in order to raise the charge carrier density and improve the conductivity of that layer.
The property that makes this compound a preferred choice is its ability to release a hydride or an electron relatively easily from the two position of the dihydrobenzimidazole ring, because that release generates a benzimidazolium cation that is stabilised by aromatisation. The presence of the electron-rich triphenylamine unit further reinforces the donor character of the molecule while at the same time improving its compatibility with the surrounding organic material matrix. Unlike alkali-metal-based dopants, which migrate readily and are difficult to control, a molecular dopant of this kind is neutral in character and can be processed from solution.
In Indonesian laboratories, this material belongs in the workflow of research groups working on electronic materials and photovoltaic devices, where organic semiconductor layers are deposited from solution and their electrical behaviour is subsequently characterised. It is handled at the small scale typical of device fabrication work, weighed out as a minor additive rather than as a bulk reagent, and is normally stocked by university and institutional research laboratories that already maintain a programme in perovskite solar cell development.
- n-Type doping of organic semiconductor layers, where the compound is added in small amounts to increase charge carrier density and raise the measured conductivity of the deposited film.
- Perovskite solar cell fabrication research, the application area under which TCI itself catalogues this material, supporting device stacks that require a doped organic charge transport layer.
- Solution-processed device preparation, since the neutral molecular character of this dopant allows it to be dissolved and deposited together with the host organic semiconductor rather than applied separately.
- Comparative dopant studies against alkali-metal-based dopants, where the controllability and resistance to migration of a molecular dopant is the property under investigation by the research group.
- Organic electron donor and hydride donor chemistry, exploiting the relatively easy release of a hydride or electron from the two position of the dihydrobenzimidazole ring.
| Brand | TCI |
|---|---|
| CAS number | 1400191-57-2 |
| Molecular formula | — |
| Purity | — |
| Category | Materials Science > Electronic Materials > Perovskite Solar Cell (PSC) Materials |
| Pack sizes | available in the research-scale pack sizes listed for this catalogue item; please confirm the size required when ordering |
| Physical form | — |
| Storage | store according to the conditions stated on the manufacturer label and the accompanying safety data sheet |
- Product code: D6182
Store this material in its original tightly closed container, kept in a cool, dry and well-ventilated place away from heat sources, direct sunlight and incompatible substances, and follow any specific storage conditions given on the manufacturer label and safety data sheet. Because the compound functions as an electron and hydride donor, keep it away from oxidising agents and limit unnecessary exposure to air and moisture; amber glass or the supplied container closed under an inert atmosphere is appropriate for material intended for device work. Handle in a fume hood using gloves, safety glasses and a laboratory coat, weigh out only the quantity required, reseal the container promptly after use, and dispose of residues and contaminated consumables through the laboratory's chemical waste procedure. Consult the safety data sheet before first use.
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