珍藏本站   |   網站地圖   |   聯系我們   |   ENGLISH   |   中國科學院
當前位置:首頁 > 學術報告

重點實驗室學術報告会通知(2019.07.04)

文章來源:  |  發布時間:2019-07-02  |  【打印】 【關閉

  

应中國科學院可再生能源重點實驗室和广东省新能源和可再生能源研究开发与应用重點實驗室的邀请,香港浸会大学朱福荣教授(Furong Zhu)將于201974日在所举行學術報告会。

 

報告會放置如下:

時間:201974日 上午9:00-10:30

地點:新能源大樓904會議室

報告題目:

(1) Stability of Nonfullerene organic solar cells

(2) Visualizing Near-infrared Light

 

報告人簡介:

Zhu Furong is a Professor in the Department of Physics, Director for Research Centre of Excellence for Organic Electronics, and Associate Director for Institute of Advanced Materials (IAM) at Hong Kong Baptist University (HKBU). He received his BSc and MSc in Physics from Fudan University, Shanghai China, in 1983 and 1987. He completed his Ph.D in Applied Physics at Charles Darwin University in Australia from 1990-1993. He did his post-doctoral research in the Department of Electrical and Electronic Engineering at Kyoto University in Japan from 1993-1995, and was a Research Fellow with the Department of Physics at Murdoch University in Australia from 1995-1997 working on silicon thin films derived from plasma enhanced chemical vapor deposition for device application. He joined Institute of Materials Research and Engineering (IMRE) in Singapore in 1997. Prior to HKBU, he was a Senior Scientist and a Program Manager leading the organic light-emitting diode (OLED) and organic photovoltaic (OPV) R&D activities at IMRE. His research interests include device physics, surface science, nanostructures and semiconducting materials-oriented research for application in organic semiconductor devices. In 2019, he established a start-up company in Hong Kong, Crimson Vision Technology Limited (宏視科技有限公司). Crimson Vision develops near-infrared visualizing technologies for fast and portable detection.

 

報告摘要:

(1)Stability of Nonfullerene organic solar cells

Remarkable progress has been made in the development of high efficiency solution-processable nonfullerene organic solar cells (OSCs). It shows that a continuous vertical phase separation process occurs in the bulk heterojunction (BHJ) in nonfullerene OSCs, e.g., forming a PBDB-T-rich top surface and an ITIC-rich bottom surface in PBDB-T:ITIC BHJ during the aging period. A gradual decrease in the built-in potential (V0) in the regular configuration PBDB-T:ITIC OSCs, due to the interfacial reaction between PEDOT:PSS hole transporting layer and ITIC acceptor, is one of the reasons responsible for the performance deterioration. The reduction in V0, caused by an inevitable reaction at the ITIC/PEDOT:PSS interface in the nonfullerene OSCs can be suppressed by introducing an MoO3 interfacial passivation layer (Fig. 1). Retaining a stable and high V0 across the BHJ through interfacial modification and device engineering, e.g., as seen in the inverted PBDB-T:ITIC OSCs, is a prerequisite for efficient and stable operation of OSCs].

 

(2)Visualizing Near-infrared Light

Near infrared (NIR) to visible light up-conversion is of significant importance in many applications including thermal imaging, bio-imaging, night vision and wellness monitoring. This talk will discuss visualizing NIR light via monolithic integration of a charge generation layer (CGL) and a light-emitting diode (LED). The performance of a high performing solution-processable NIR to visible light up-conversion device, comprising a polymer bulk heterojunction (BHJ) NIR CGL and a CsPbBr3 perovskite LED will be presented. An NIR visualizing device, as illustrated in the following figure, provides a platform for NIR imaging applications. The NIR CGL enables an efficient hole injection in the LED in the presence of NIR light, and also serves as an optical out-coupling layer to enhance the visible light emission by the perovskite LED. The perovskite LED has a narrow emission spectrum with a FWHM of 20 nm and a peak wavelength of 520 nm, corresponding to the wavelengths near the peak response of the human eye. Visualizing NIR is demonstrated using different shaped NIR light sources. The up-conversion device can be operated at a low voltage of 3 V. The results are very encouraging, revealing a high performing solution processable up-conversion device for visualizing NIR light.

 

參加人員:請太陽能研究室科技人員和研究生參加,同時歡迎分布式發電微電網技術研究室、環境能源材料研究室、有機能源材料研究室等相關團隊人員參加。

版权所有 © 中國科學院广州能源研究所 备案号:粵ICP備11089167號-2
地址: 广州市天河区能源路2号 电话:020-87057639(党政办) 87057637(科技處)
传真:020-87057677 E-mail:maxbellamy.com  技術支持:青雲軟件

      <kbd id='5yehdd'></kbd><address id='5yehdd'><style id='5yehdd'></style></address><button id='5yehdd'></button>

              <kbd id='5yehdd'></kbd><address id='5yehdd'><style id='5yehdd'></style></address><button id='5yehdd'></button>