State Key Laboratory of Luminescence and Applications

Introduction of laboratories

1. Laboratory of New Luminous Materials and Applications

Director: Zhendong Hao, Xiaoyang Guo

Research group:

Nano-Biology

C-dots Luminescence

Organic Lasers

Organic Luminescence

Rare Earth Optical Materials and Devices

Low Dimensional Optical

Quantum dot applications

Member: 28

Professor: 7

Associate professor: 13

Research assistant: 8

Nano-Biology Introduction:

The objective of our research is to gain deeper understanding excited state dynamics of photonic nanomaterials and to investigate and design functional nanostructures with special optical properties for bio-applications (bio-detection, bio-imaging and theranostics) and chemical applications (photocatalysis, photochemistry, etc.). Our team includes 2 full professors, 1 associate professor and 1 assistant professor, 5 PhD candidates, 6 master students. In the past five years, we have published 40 papers, including Chem. Soc. Rev., Angew. Chem. Int. Ed., ACS Nano, Appl Catal B-Environ, Biomaterials, J. Phys. Chem. Lett. Biosens. Bioelectron., etc. (IF?10=6)

C-dots Luminescence Introduction:

Carbon dots (CDs), an emerging class of carbon based luminescent nanomaterials, have drawn increasing attention owing to their extensive applications in various fields, such as bioimaging, biosensors, optoelectronics, laser, catalysis, and so forth. CDs possess several distinct merits, such as tunable emission, high photostability, low cost, and low cytotoxicity. Especially, CDs-based composites with strong photoluminescence are much desirable due to their special applications, such as color convert layer in light-emitting diode (LED). In our research group, there are two associate professors, including Ding Zhou and Di Li. Our group focuses on designing structured nanoscale materials with exceptional properties. Our group fabricates fluorescent nanomaterials by tuning the size and shape at the nanoscale. Our group uses modeling to assist in understanding the properties of single structures as well as collective effects of assemblies of nanoparticles. Applications of his unique materials include nanomedicine, nano-lasing, photovoltaics, wetting, and imaging.

Organic Lasers Group Introduction:

The group was established in 2006. After more than 10 years of development, it has formed an industry-university-research team integrating material processing and synthesis, device design and preparation, and industrialization development of related technologies. In recent 10 years, they have published over 80 academic papers in such journals as Adv. Mater., Angew. Chem. Int. ed. etc.. They have undertaken a number of national, Chinese academy of sciences and municipal and provincial scientific research projects. Research interests include organic semiconductor laser devices and physics, quantum dots and perovskite photoelectric functional materials and devices, foundation and application of new transparent conductive film materials, electrochromic devices and applications. The research team reported for the first time on the international pump organic laser devices and granted a US patent (US7804873B2). In addition, they developed a variety of new transparent conductive film with outstanding photoelectric performance, and successfully applied in a variety of photoelectric devices, such as flexible organic/perovskite solar cells, quantum dots/perovskite light-emitting diodes, electrochromic devices. In recent years, the research team has established close cooperation with internationally renowned universities, including Oxford University, Kyushu University and Hong Kong Baptist University.

Organic Luminescence Introduction:

The group focus on in the field of organic optoelectronic materials and devices for more than a decade. By building a multifunctional integration in the field of organic electroluminescent material system, solved the conventional material can't meet the needs of high luminous efficiency and high hole, electronic transmission capacity and its matching problem, won more series with independent intellectual property rights of high-performance materials. Develop alternative to expensive large high precision instrument series of cheap and convenient optical sensor, the successful implementation of the gases, ions, biomolecules and trace explosives substances such as online accurate detection.

Rare Earth Optical Materials and Devices Introduction:

The group engaged in research on luminescence and laser materials as well as light source devices, mainly including 1) phosphors and fluorescence ceramics covering the spectral region from UV to visible to infrared, and related illumination source and near infrared detection source. 2) infrared to visible upconversion luminescence dynamics and design of highly efficient upconversion materials. 3) visible and infrared laser cremics. Our group prefer develop advance optical materials based on the analysis of luminescence dynamics. There 7 researchers in the group including two professors. More than 100 papers were published in recent years, two of which was listed in the ESI most cited papers. 10 patents was obtained.  Award for Science and Technology Progress with the first prize was achieved. 5 postgraduate students achieved national scholarships and other named scholarships.

Low Dimensional OpticalIntroduction:

Our work focus on the design, growth, optical characterization of semiconductor nano-materials and the fabrication of related optoelectronic devices. In 2013, we fabricated the artificial leaf like structures self-assembled by ZnO nanoparticles, which has enhanced the light absorption of ZnO material. The photocurrent on/off ratio of the corresponding UV photodetectors was 4 orders of magnitude (Wang Fei, Zhao Dongxu*, et. al., Nanoscale, 2013, 5, 2864-2869). Meanwhile, we fabricated the ZnO 2D photonic crystals with the PS micro spheres as template, by using Mie scattering theory, we accurately simulated the photonic band structure and the corresponding change rules, which is in well accordance with the experimental data. The ZnO 2D photonic crystals presents the enhanced absorbance in visible region, and the visible light driven photocatalysis was achieved (Wang Fei, Zhao Dongxu*, et. al., J. Mater. Chem. A, 2013, 1, 9132-9137). In 2014, we began to design and growth the ZnO/Ga2O3 core/shell microwires by one-step CVD method, and the related solar-blind photodetector show the responsivity of 1.3*10^3 A/W, on/off ratio of 10^6 and the detectivity of 9.91*10^14 Jones (Zhao Bin, Wang Fei, et. al., Nano letters, 2015, 15, 3988; Zhao Bin, Wang Fei, et. al., Adv. Funct. Mater. 2017, 27, 1700264). Recent years, I was interested in the perovskite materials and related properties. In 2016, we fabricated a photoconductive photodetector based on the organometal halide perovskites, and the fast respond speed of less than 20 μs was achieved (Wang Fei, Mei Jingjing, et. al., ACS Appl. Mater. Inter., 2016, 8, 2840-2846). Then, from the ultrafast femtosecond transient absorption spectra, we have observed the energy transfer process between CsPbBr3 quantum dots and solvents (Mei Jingjing, Wang Fei*, et. al., J. Mater. Chem. C, 2017, 5, 11076). Recently, we focus on the CVD growth of CsPbX3 and CsSnX3 materials, and the self-powered all-inorganic photodetectors with high performance was obtained (Tian Cancan, Wang Fei*, et. al., ACS Appl. Mater. Inter., 2019, 11, 15804-15812).

Quantum dot applications Introduction:

The group was established in 2002. After more than 16 years of development, it has formed an industry-university-research team integrating nanocrystals’ synthesis and surface modification, device design and preparation, and medical immune detection development of related technologies. They have published over 70 academic papers in such journals as Biomaterials, ACS AMI, Chem. Comm.. They have undertaken a number of national, Chinese academy of sciences and municipal and provincial scientific research projects. The research team reported for the first time on the metal plasma field enhanced FRET efficiency. In addition, they developed a multiple homogeneous immunoassay based on the QDs and gold nanorods. They have realized research on the suicide gene therapy and fluorescent tracer integration. They have also finished the research by using carbon dots as a trackable drug delivery carrier for localized cancer therapy in vivo. In recent years, the research team has established close cooperation with internationally renowned universities, including City University of Hong Kong et al..

 

2. High Power Semiconductor Laser Group

We have already built 1400 m2 Class 1000 Cleanroom Enclosed lab environment, and a diode laser lab production line with advanced equipments, including MOCVD, EBPVD , E-Beam ,ICP, laser diode chip production equipments, laser diode packaging equipments, and platforms for laser diode beam combining and fiber coupling, total equipments worth nearly 100 million RMB(about $16 million).

Focus on

a) Design: High power diode laser, including EEL, VCSEL, VECSEL, Nano lasersDFB lasers;

b) Chip-technology: MOVPE wafer epitaxy, Fabrication, including Lithography, RIE/ICP, PECVD, Sputtering, Evaporation, Facet coating;

c) Packaging-technology: AuSn soldering of chips, Use of thermal expansion matched submount;

d) Coupling-technology: Beam shaping, Spectral beam combing

 

3. Wide band gap semiconductor photoelectric characteristics research group

We focus on the materials  growth, characteristics and devices of wide-bandgap semiconductor. There are 3 topic in our group:

(1) ZnO based photoelectric characteristics research group:

We engaged in the research of photoelectric characteristics and optoelectronic materials and devices of wide-bandgap semiconductor point defects. At present, the research focuses on the preparation of single-photoelectric characterization instrument system for wide-bandgap semiconductor point defects and the p-type of ZnO-based semiconductor materials. Preparation and characterization of doped and high performance UV optoelectronic devices.

(2) AlN based ultra wide band gap semiconductor materials and devices

We mainly interested in the (ultra) wide band gap semiconductors, including the material growth and optoelectronic devices. The detail are as follows, 

i) Growth of AlN, GaN, AlGaN by MOCVD

ii) P-doping

iii) UV and DUV optoelectronic devices, including detectors, LEDs, LDs

iv) First principle simulation of 2D graphene, BN, defects et al.

(3) InGaAs based near-infrared detectors

 

Introduction of major department leaders

1. TONG Cunzhu

 

Cunzhu Tong, received his B.S. and M.S. degrees in physics from Chongqing University, and Ph.D. degree from the Institute of Semiconductors, Chinese Academy of Sciences (CAS). He was a research fellow with Nanyang Technological University (NTU), Singapore, from 2005 to 2009. After that he joined the University of Toronto, Canada, as a post-doctoral researcher. He became a professor of Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), CAS, Changchun, China in 2010. He was the distinguished elite professor of CAS and senior member of IEEE. He is the deputy director of State Key Lab of Luminescence and Applications, and also a reviewer of the National Key Research and Development Plan of China. He won several awards including the Outstanding Young Scientist Award selected by SCIENTIFIC CHINESE, the Excellent Award for Hundred Talents Program of CAS, Wang Daheng Optical Award and the Important Achievements in China Optics 2015 etc. He has authored and co-authored over 90 refereed journal papers and awarded 17 patents. His current research interests include the high beam-quality semiconductor lasers, beam combining, and semiconductor disk lasers.

Email: tongcz(at)ciomp.ac.cn

 

2. GUO Xiaoyang

Introduction:

Dr. Xiaoyang Guo, obtained her Ph.D. in Materials Science from University of Chinese Academy of Sciences in 2010. She took a post-doc position in Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences until 2012. She worked as an assistant professor in 2013 at the same group, and then worked as an associate professor since 2014.

Research Fields:

Dr. Xiaoyang Guo, focuses on the design and fabrication of new transparent electrodes and their applications in photoelectronic devices for energy applications, such as organic/perovskite solar cells and perovskite light-emitting diodes.

Achievements in scientific research:

Dr. Xiaoyang Guo is aimed at the development of novel, low-cost and flexible transparent electrodes. She proposed a variety of new transparent electrodes with excellent photoelectric and bending properties by using dielectric/metal/dielectric multilayer structure, which have been successfully applied to the flexible organic or perovskite photovoltaic cells and transparent perovskite light-emitting diodes. These researches will provide materials, technology and knowledge for future development of alternative materials for ITO electrodes and new flexible photoelectronic devices for energy applications. According to the above studies, Dr. Guo has authored 39 peer-reviewed journal articles (total citation > 900 times, H-index = 16), e.g., famous international journals of Adv. Funct. Mater., Adv. Opt. Mater, J. Phys. Chem. Lett, ACS Appl. Mater. Interfaces, etc. Moreover, Dr. Guo also authorized 7 Chinese invention patents. She has undertook two national (61774154, 61106057), three provincial (20180201029GX, 20170101039JC, 20140520119JH) research projects towards these fields.

 

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