Dr. TINGTING YIN[Nanyang Technological University (NTU), Singapore]

Title: Towards Understanding and Engineering of Perovskites via High Pressure for Photovoltaic and Photoelectric Applications

Time: 10:45 -11:15 AM, Wednesday, November. 14, 2018

Place: Conference room 410, HPSTAR (Shanghai)

Host: Xujie Lü

Polycom: 02120004

Abstract:

Hybrid organic-inorganic perovskites (HOIPs) are low-cost and highly efficient optoelectronic and photovoltaic materials for applications in solar cells, light emitting diodes (LEDs), and so on, which is correlated with their intrinsic structures. Now the hybrid perovskite families include three-dimensional (3D) (CH3NH3PbBr3), two-dimensional (2D) ((C4H9NH3)2PbI4) and nanostructured ((CH3NH3PbBr3 nanoparticles) materials. However, physical exploration to such materials is still at early stage and full assessment of their structures and properties is still missing.High pressure and various temperature allow easy access to various structures and interactions among the constituent atoms and molecules, which will in return significantly change the corresponding physical and chemical properties. Therefore, exploring correlations between pressure-induced structural and electronic changes of hybrid perovskites is essential to well understand the intrinsic structural stability and establish structure-property relationship for optimizing their functionality in practical long-term applications.

Biography of the Speaker:

Dr. Tingting Yin is a postdoctor of Nanyang Technological University (NTU) in Singapore. She was a PhD student from 2013 to 2018 in NTU.

Dr. YIN mainly engaged in the basic and applied research of nano-metal and hybrid perovskite materials in photoelectric and photovoltaic applications, especially focus on structural and optical property studies under extreme conditions of low temperature and high pressure. Research on resolving physical mechanisms of the modulation between material structures and functional properties via in-situ measurement systems of absorption/reflection, emission, Raman, etc.

In total, 12 SCI papers including Adv. Mater., J. Am. Chem. Soc.  (revision submitted on 18 Oct 2018), ACS Nano, Chem. Mater. ACS Photonics, and Nanoscale etc.