The author of 《Excitation energy-dependent photocurrent switching in a single-molecule photodiode》 were Shan, Bing; Nayak, Animesh; Williams, Olivia F.; Yost, Dillon C.; Polizzi, Nicholas F.; Liu, Yanming; Zhou, Ninghao; Kanai, Yosuke; Moran, Andrew M.; Therien, Michael J.; Meyer, Thomas J.. And the article was published in Proceedings of the National Academy of Sciences of the United States of America in 2019. Safety of 4-Iodobenzoic acid The author mentioned the following in the article:
The direction of electron flow in mol. optoelectronic devices is dictated by charge transfer between a mol. excited state and an underlying conductor or semiconductor. For those devices, controlling the direction and reversibility of electron flow is a major challenge. We describe here a single-mol. photodiode. It is based on an internally conjugated, bichromophoric dyad with chem. linked (porphyrinato)zinc(II) and bis(terpyridyl)ruthenium(II) groups. On nanocrystalline, degenerately doped indium tin oxide electrodes, the dyad exhibits distinct frequency-dependent, charge-transfer characters. Variations in the light source between red-light (∼1.9 eV) and blue-light (∼2.7 eV) excitation for the integrated photodiode result in switching of photocurrents between cathodic and anodic. The origin of the excitation frequency-dependent photocurrents lies in the electronic structure of the chromophore excited states, as shown by the results of theor. calculations, laser flash photolysis, and steady-state spectrophotometric measurements. After reading the article, we found that the author used 4-Iodobenzoic acid(cas: 619-58-9Safety of 4-Iodobenzoic acid)
4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Safety of 4-Iodobenzoic acid
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com