Application of photoelectron spectroscopy to the study of photochemical reactions of solids. photooxidation of rubrene (5,6,11,12-tetraphenylnaphthacene)

Direct observation of the electronic states of single crystalline rubrene under ambient condition by photoelectron yield spectroscopy

“…4-10 While it is more or less common to other organic semiconductors that the transport nature is easily influenced by ambient conditions, 11 the rubrene case is of particular interest because it has long been well-known to change into rubreneendoperoxide ͑RubO 2 ͒ quite sensitively in the presence of oxygen and visible light. 12 Despite the explicit nature of the reaction itself, the relevance of its product RubO 2 to the actual transport characteristics is still unclear.…”

Optical properties of fully and partially fluorinated rubrene in films and solution

“…It also offers the perspective to reduce the sensitivity to oxygen. [1][2][3][4][5] In particular, the position of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) can be fine-tuned, but the resulting energies are not necessarily straightforward to predict. Moreover, fluorinated analogues are an obvious choice for structurally compatible donor-acceptor combinations in organic electronics.…”

“…Both absorption and PL spectra of RUB match literature spectra well. 3,22,23 The most intense peaks in the absorption and PL emission spectra of RUB in Figs. 1(a) and 1(d) are known to stem from the corresponding HOMO-LUMO transition, while the equally spaced further peaks belong to a vibronic progression of the same electronic transition.…”

Conservation of Chirality in a Hierarchical Supramolecular Self‐Assembled Structure with Pentagonal Symmetry

“…The latter property established the success of rubrene as a dopant for organic light emitting diodes which led to the improvement of the efficiency and stability of the devices 11. The high charge carrier mobility measured on the surface of the crystals12 led to their integration into organic field‐effect transistors13 that can be switched by light14 as a consequence of the reversible photooxidation behavior of the molecule 15. Despite this growing interest in the application of rubrene, there have been no investigations of the self‐assembly process and the molecular and supramolecular chirality of rubrene at the nanoscale.…”