502030 battery.Graphene urgently needs to seek basic research breakthroughs for high-end applications in optoelectronic devices.

　　Graphene is a honeycomb crystal composed of carbon atoms closely arranged in a hexagonal structure. Its unique properties make graphene have great application value in the field of optical and optoelectronic devices. Over the past few decades, the application of graphene optoelectronic devices has been widely explored in the scientific community and has emerged in industry. On June 4, it was revealed at the SNEC 2019 Graphene Optoelectronic Application Summit Forum that the combination of graphene and semiconductor materials has made breakthroughs in optoelectronic device application tests, and continuous investment in basic originality is urgently needed in the process of industrialization. In 2018, basic research and industrial applications of graphene developed rapidly at home and abroad. Research and applications in the fields of controllable preparation of materials, energy conversion and storage, optoelectronic devices, sensors, composite materials, environmental governance and other fields were carried out in depth. The industrialization of graphene is in my country. Get a quick boost. Professor Zhu Hongwei, deputy dean of the School of Materials at Tsinghua University, said that graphene currently has good applications in coatings, lithium batteries, etc., but most of them are relatively extensive applications. Graphene is light, thin and flexible, and can be used to develop high-end applications in optoelectronic devices in the future. In laboratory research, the application of graphene materials in optoelectronic devices has achieved high conversion efficiency. However, during the advancement of industrialization, the photovoltaic industry has paid very little attention to graphene. The bottleneck restricting industrial advancement lies in its preparation process. Zhu Hongwei said that there are still bottlenecks in the preparation of graphene, and there is no truly stable, reliable, high-quality, and highly controllable batch preparation technology. Lin Shisheng, associate professor at the School of Microelectronics and School of Information Electronics and Engineering of Zhejiang University, also said at the meeting that the application of graphene at higher levels should be encouraged. The application of graphene in photovoltaic materials is the research direction in the next two years. In 2013, his team began to study the application of graphene/semiconductor heterogeneous devices in solar cells and photodetectors. From no power generation at the beginning, it increased to 1.5% at the beginning of 2014, to 15.5% at the end of the year, and then to 15.5% in 2015. 18.5%, the conversion efficiency of graphene solar cells has gradually increased. According to Li Yichun, secretary-general of the China Graphene Industry Technology Innovation Strategic Alliance, there are still problems in basic research in the field of graphene, and deficiencies in basic research have restricted the deeper development of graphene in industrial applications. He said that efforts should be made to prepare high-quality graphene and develop high-quality products using higher single-layer graphene. Wang Yaoming, associate researcher at the Shanghai Institute of Ceramics, Chinese Academy of Sciences, said that the development of graphene is now in the material stage. The preparation of high-quality and low-cost graphene materials is very important for industrial development. It is necessary to pay attention to graphene, gallium arsenide, semiconductors, etc. Material interaction.

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