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Professor Yu Junsheng and His Team Published a Cover Paper in the International Authoritative Journal-“Advanced Materials”
Updated:17/06/07 Editor:Carrie Source:Mengjia Liao Hits:134

In May 15th, Prof Yu Junsheng and his team, from School of Optoelectronic Information and State Key Laboratory of Electronic Thin Films and Integrated Devices in UESTC, cooperated with Prof Li Changzhi and his team, from Zhejiang University, published an academic paper in the international authoritative journal "Advanced Materials" (Advanced Materials, IF: 18.96) entitled "Highly Efficient Organic Solar Cells Consisting of Double Bulk Heterojunction Layers". At the same time, due to the innovative of this paper, it was highlighted as the Back Cover of the journal. Associate Professor Huang is the first author of the paper, Professor Yu and Professor Li as co senior author, UESTC and State Key Laboratory of Electronic Thin Films and Integrated Devices as the first signature unit. All the work was done in our university. Up to now, this is the first cover academic paper published by our university as the first unit in the international authoritative journal.

For the first time, a method is presented for the introduction of new organic solar cell structure of double heterojunction continuous active layer in the interface between positive and negative electrodes, using modified method, successfully realized the energy conversion efficiency is of wide spectrum, 12% thick organic solar cell. It’s the highest recorded non laminated solar cell organic thin film photoelectric conversion efficiency of the current literature the report (Adv. Mater., 2017, 29, 1606729). Double heterojunction structure of this device is put forward for the first time. Not only can improve the utilization efficiency of low energy and high energy photons, but also form in the two kinds of bulk heterojunction hybrid between transition region so as to construct the effective charge transfer channel; At the same time, according to the Zinc Oxide electronics without modifications to the transmission bottleneck problem of layer itself, the physical and chemical defects, innovative use of fullerene polymer molecular self-assembly passivation Zinc Oxide interface defects, greatly improve the electronic coupling and interface characteristics of the organic active layer and Zinc Oxide, the successful implementation of the thick film with high charge mobility and fill factor characteristics the double heterojunction organic solar cell devices, the short-circuit current density of 23.75 mA cm-2, the open circuit voltage is 0.77 V, the fill factor is 0.67, the energy conversion efficiency reached 12.25%. At the same time, according to the Zinc Oxide electronics without modifications to the transmission bottleneck problem of layer itself, the physical and chemical defects, innovative use of fullerene polymer molecular self-assembly passivation Zinc Oxide interface defects, greatly improve the electronic coupling and interface characteristics of the organic active layer and Zinc Oxide, the successful implementation of the thick film with high charge mobility and fill factor characteristics the double heterojunction organic solar cell devices, the short-circuit current density of 23.75 mA cm-2, the open circuit voltage is 0.77 V, the fill factor is 0.67, the energy conversion efficiency reached 12.25%. This work has opened up a new approach for the realization of thick film heterojunction, wide spectrum response and efficient organic thin-film solar cells, and will promote the development of organic photovoltaic field.

Professor Yu and his team have long been engaged in the field of Organic Electronics research work and carried out extensive academic exchanges and cooperation with famous universities, such as Yale University, UC Berkeley, UCLA, Johns Hopkins University, Northwestern University, University of Michigan, University of Washington, Dezhou University, Zhejiang University, Sichuan University, Austen, etc. In those high level academic papers published by the team, 5 were selected in ESI highly cited papers, 1 papers selected as ESI hot papers, single SCI lead him up to 184 times, two articles were recommended as journal cover (Adv. Funct. Mater. 2016, 26, 6179 and Adv. Mater., 2017, 29, 1606729);


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