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    Home > Professor Yang Yulin and Professor Fan Ruiqing of Harbin University of technology made important progress in the field of perovskite photovoltaic

    Professor Yang Yulin and Professor Fan Ruiqing of Harbin University of technology made important progress in the field of perovskite photovoltaic

    • Last Update: 2019-12-19
    • Source: Internet
    • Author: User
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    Recently, the optoelectronic functional materials team led by Professor Yang Yulin and Professor Fan Ruiqing of the school of chemical engineering and chemistry of Harbin University of technology has made important progress in the field of perovskite photovoltaic The research results were published in angel Chem Int ed (DOI: 10.1002 / anie 201909291) and selected as "hot paper" Professor Yang Yulin and Professor Fan Ruiqing are the article correspondents, Dong Yayu, a 2017 level doctoral student, and Zhang Jian, a postdoctoral teacher, are the co authors, and Harbin Institute of technology is the only communication unit The PCE of perovskite solar cells (PSCs) has been improved rapidly in recent years, and the certified PCE has reached 25.2% However, the actual production and application of perovskite solar cells are still limited by the stability of devices Based on the low conductivity and mobility of the organic molecule spiro ometad hole transport layer material, and the long time needed to reach the oxidation state, the research team proposed to combine the advantages of the porous nature of MOFs and the oxidation ability of POMs, so as to make the porous composite material POM @ Cu BTC is applied to the hole transport layer of PSCs to improve the oxidation efficiency of spiro ometad molecules and the electrochemical performance of hole transport layer materials The results show that the POMS in the structure can oxidize spiro ometad quantitatively and controllably in an inert atmosphere, and the conductivity and hole mobility of the doped HTM films are nearly twice as high as those of the undoped ones The PCE of 21.44% and the filling factor of 0.80 are achieved in the perovskite solar devices In addition, after one month storage at room temperature with 30% relative humidity, the battery device without package can still maintain 90% of the initial PCE Therefore, a simple chemical doping strategy is proposed in this research work, that is, the hybrid material after the combination of oxidized POMs and porous MOF is introduced into the hole transport layer, which not only realizes the quantitative and controllable oxidation of spiro ometad The long-term stability of the device has also been significantly improved by improving the conductivity and hole mobility of the film, which is of great significance to the industrial development of perovskite solar cells Professor Yang Yulin and Professor Fan Ruiqing have been engaged in the research of photovoltaic devices and MOF materials for many years They have published more than 50 research results in adv energy mater., J mater Chem A, ACS app Mater Inter, chemsuschem and other journals.
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