89922-59-8

The invention provides photoactivated novel organic small-molecular matrixes and a preparation method thereof, and application of the photoactivated novel organic small-molecular matrixes in MALDI mass spectrometric detection. According to the invention,

The invention belongs to the technical field of organic functional materials, and relates to a perylene diimide electron transport material and a synthesis method thereof and application in a trans-planar perovskite solar cell. The phenothiazine dioxide group is taken as a core structure, perylene diimide groups are connected at 3 - and 7 - substitution positions of the phenothiazine dioxide structural unit, and different peripheral groups are introduced. The perylene diimide electron transport material provided by the invention has the advantages of stable conditions, low cost, high electron mobility and the like. Compared with a trans-planar perovskite solar cell based on fullerene electron transport materials, the cell based on such an electron transport material has no hysteresis under the working condition. In addition, lower manufacturing cost, higher photoelectric conversion efficiency and better stability are favorable to promoting its large-scale commercial production. (by machine translation)

The invention discloses a conjugated microporous polymer based on phenothiazine, a preparation method and an efficient catalytic application and belongs to the technical field of photocatalytic functional material preparation. The conjugated microporous polymer based on carbazole-phenothiazine has a high specific surface area, excellent heat stability and chemical stability and good ultraviolet absorption, has good photocatalytic activity, and can catalyze aerobic selenylation of indole efficiently in an illuminating aerobic condition. The conversion ratio is greater than 99%. As a heterogeneous catalyst, the polymer is separated and recovered conveniently and can be recycled. The conjugated microporous polymer based on phenothiazine expands the application of CMPs in photocatalysis and has important application value and application prospect.

The invention belongs to the technical field of organic functional materials and relates to a hole-transport material taking a phenothiazine dioxide as a core structure and a synthetic method thereofand application thereof in a perovskite solar battery. The synthetic method comprises the following steps: carrying out a Buchwald carbon-nitrogen coupling reaction on phenothiazine and R1Br to obtainan intermediate 1; carrying out a brominating reaction on the intermediate 1 to obtain an intermediate 2; carrying out an oxidizing reaction on the intermediate 2 and hydrogen peroxide to obtain an intermediate 3; and carrying out Buchwald carbon-nitrogen coupling reaction or Suzuki carbon-carbon coupling reaction on the intermediate 3 to obtain a final product PDO-1 or PDO-2. Compared with a battery based on a conventional hole-transport material Spiro-OMeTAD, the material prepared by the preparation method is applied to the perovskite solar battery to obtain a higher photoelectric conversion efficiency, better stability and lower manufacturing cost. The material is free of an obvious relaxation phenomenon, so that commercial production of the perovskite solar battery is promoted favorably.

Two novel phenothiazine 5,5-dioxide (PDO) core building block-based hole transport materials (HTMs), termed PDO1 and PDO2, were designed and synthesized. The introduction of a sulfuryl group in a core unit can deeply influence the energy levels and charge carrier mobilities of relative HTMs. The combined suitable energy level alignment, higher hole mobility and conductivity, as well as highly efficient hole transfer of PDO2 enable the perovskite solar cell (PSC) to achieve an impressive power conversion efficiency (PCE) of 20.2% and good stability when aged under ambient conditions. These results demonstrate the potential versatility of the PDO building block for further development of cost-effective and highly efficient HTMs for PSCs.

The reaction of either 10-phenylphenothiazine (1) with bromine in acetic acid or the cation radical of 1 with bromide ion gives ring substitution only and in accord with customary stoichiometry for nucleophilic substitution of aromatic cation radicals.However, the reaction of 1 with pyridinium bromide perbromide (2) gives predominantly 10-phenyl ring substitution and a small amount of ring substitution products.Evidence is presented which indicates that ring substitution occurs via cation radical whereas 10-phenyl substitution proceeds via electrophilic attack on the neutral molecule 1.Substitution of 10-phenylphenoxazine (4) occurs predominantly but not exclusively on the phenoxazine ring; some bromination does occur on the 10-phenyl ring.In contrast, the reaction of 4 with bromine gives only ring mono- and disubstitution products.These results indicate that both 1 and 4 react similarly under the same conditions.