Recently, Chemical & Engineering News, which is dedicated to real-time reports on the latest global chemical and chemical research, research trends and trends, reports on A Better Perylene Suncatcher, and reports on the achievements of Wang Changchun, a researcher at Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Peng task force published in the Journal of the American Chemical Society (J. Am. Chem. Soc. 2015, 137, 3799) on the research results. At the same time, the Journal of the American Chemical Society also highlighted the results with the title Metal-free molecule rivals high-performance metal-organic dyes (DOI: 10.1021 / jacs.5b02864). In view of the resource problems of pyridine ruthenium dyes and heavy metal toxicity, low preparation yield and poor stability of zinc porphyrin dyes, the development of colorful and resource-limited organic dyes is a hot topic in this field in recent years. However, organic dyes The performance of the delay can not make a breakthrough. Wang Peng task force to carry out this work, only using a single organic dye, you can prepare a dye-sensitized solar cell efficiency of 12.5%. Yao Chaoyang and Zhang Min of the research group have designed and synthesized a completely planar electron donor based on the material calculations (nitrogenated indeno? è©? Jia Xie ç„? Chaff ?, and through their three keys and their previous ( Benzothiadiazole-benzoic acid (R) was developed by the method of the present invention, Energy. Environ. Sci., 2013, 6, 2944; ChemSusChem, 2015, 8, 97; Angew. Chem. Int. Ed., 2015, DOI: 10.1002 / anie.201501195) (Blue part of the figure) binary electron acceptor to prepare a high-performance organic dye C275 with independent intellectual property rights.This study broke through the homogeneous research mode of organic photosensitive dyes and is important for the creation of the precursor chromophore Apocalyptic meaning. This research has been funded by the National Key Basic Research and Development Program and the National Natural Science Foundation of China. C275 dye chemical structure