Photo of Feng Gao

Feng Gao


Organic and perovskite semiconductors for energy technologies. ERC Grantee (StG2016, CoG2021); Wallenberg Academy Fellow 2017; SSF Future Research Leader 2020; Tage Erlander Prize (awarded by the Royal Swedish Academy of Sciences) 2020.


Prof. Feng Gao is leading a research group focusing on organic and perovskite semiconductors at Linköping University. He works as a full professor at Linköping since 2020. 

Before 2020, Feng Gao was associate professor (2017-2020), assistant professor (2015-2017), and Marie Skłodowska-Curie Individual Fellow (2013-2015) at Linköping. He received his Docent from Linköping in 2016, his PhD degree from the University of Cambridge in 2011, and his B.S. and M.S. degrees from Nanjing University in 2004 and 2007, respectively. He works at the interfaces between physics, chemistry, and materials science, focusing on the development of novel optoelectronic devices for energy technologies.


Prof. Gao’s group dedicates its efforts to energy devices, with the ambition to both improve device performance and understand the underlying fundamentals. Their current investigations include organic semiconductors and metal halide perovskites, with research focuses such as:

Fullerene-free organic solar cells, including low voltage losses, green solvent processing and new applications.

Nature Energy 2016
Nature Materials 2018
Nature Materials (review) 2018
Nature Energy 2019
Nature Energy 2021
Nature Energy 2021
Nature Energy 2023
Nature Photonics 2023

Perovskite solar cells, with a focus on understanding and improving the stability:

Nature 2019
Science 2022

Perovskite LEDs, with the motivation to improve the device performance and also explore new applications:

Nature Photonics 2019
Nature Electronics 2020
Nature Materials (Review) 2021
Nature Communications 2021

Lead-free perovskites, aiming to tune the optoelectronic properties and explore their magnetic properties:

Advanced Materials (Review) 2019
Science Advances 2020

Perovskites for other applications, e.g. X-ray detection and lasers:

Nature Photonics 2022
Advanced Materials 2023

See the full list of publications at Google Schoolar:

Google Scholar


Organic semiconductors

Organic semiconductors have a large potential in low-cost and large-area device applications, benefiting from cheap manufacturing processes such as solution-based roll-to-roll printing.

All device applications previously dominated by inorganic semiconductors have presented opportunities for their organic counterparts. Such applications include solar cells, LEDs, field-effect transistors, lasers, and memory devices.

Metal halide perovskites

Metal halide perovskites have emerged as one of the most popular semiconducting materials since 2009. They have shown unique properties, including:

  • Tunable bandgap
  • High absorption coefficient
  • Broad absorption spectrum
  • High charge carrier mobility
  • Long charge diffusion lengths

These properties enable metal halide perovskites to be used in a broad range of photovoltaic and other optoelectronic applications.

Solar cells

Although the current solar cell market is dominated by silicon-based devices, the recent emergence of solution-processed solar cells based on organic semiconductors and metal halide perovskites has shown great potential for commercial applications. For example, the power conversion efficiency of perovskite solar cells has soared from a few percent to over 25% within the past few years. Such a quick development has never before happened in the history of photovoltaics.


LEDs, which emit light by a solid-state process called electroluminescence, are considered the most promising energy-efficient technologies for future lighting and displays. Metal halide perovskites demonstrate strong photoluminescence and tunable emission energy, making them a promising candidate for the next generation of highly efficient LEDs.


Electrically pumped lasers are considered as a holy grail in the field of optoelectronics. Recent breakthroughs on optically pumped perovskite lasers and high-performance perovskite LEDs indicate great potential of developing perovskites into a new generation of materials for electrically pumped lasers.


Prof. Gao's research group is mainly supported by the following funding agencies:

Group and Supervision

Prof. Feng Gao is deeply involved in both the scientific and career development of his group members. The senior researchers in his group have been awarded the prestigious VR (Starting) Grants, Marie Skłodowska-Curie Individual Fellowship, VINNMER Fellowship. He also values the exchange of ideas: he has sponsored members of his group in exchanges to Cambridge, Oxford, Imperial College and EPFL, and his group has hosted visiting students and scholars from Cambridge, Oxford, Zhejiang University, Nanjing University, Nanjing Tech University, Shenzhen University, Queen Mary University of London, and more.


News about Feng Gao

photo of Dr. Max Karlsson

Double awarded thesis in a highly relevant topic

Max Karlsson, who obtained his PhD from the Department of physics, chemistry and biology at Linköping University, has been doubly recognised for his thesis on the dynamics of blue-emitting metal halide perovskites for light-emitting diodes.

Glowing sheet of glass.

Breakthrough for next-generation digital displays

Researchers at LiU have developed a digital display screen where the LEDs themselves react to touch, light, fingerprints and the user’s pulse, among other things. Their results could be the start of a whole new generation of digital displays.

Sign of Linköping University.

Two new Wallenberg Scholars at LiU

Researchers Feng Gao and Daniel Västfjäll at LiU have been appointed as new Wallenberg Scholars. In addition, six LiU researchers will have their  scholar periods extended. Each researcher receives between SEK 18 and 20 million for five years.

Department of Physics, Chemistry and Biology (IFM)

Undergraduate teaching and research in the areas of biology, chemistry, materials and applied physics and theory and modelling are conducted at this department.

Electronic and photonic materials (EFM)

Our division's research is focused on the development of organic electronics for energy conversion and storage.

A road leading to a sunset. 2020 is written on the road with white paint, above it an arrow is pointing in the direction of the horizon.

Three doctoral students to receive Horizon 2020 funding at LiU

Three departments will each host a doctoral student funded by the Marie Skłodowska-Curie actions. The research projects deal with using waste heat to produce electricity, perovskites for photonics, and the rendering of computer-generated images.


Publication list


Miguel A. Torre Cachafeiro, Naresh Kumar Kumawat, Feng Gao, Wolfgang Tress (2024) Pulsed operation of perovskite LEDs: a study on the role of mobile ions NATIONAL SCIENCE REVIEW Continue to DOI
Kang Wang, Jeong Hui Kim, Jie Yang, Xiaoke Liu, Yixuan Dou, Yuxuan Li, Weijian Tao, Haiyun Dong, Haiming Zhu, Kaifeng Wu, Li Na Quan, Feng Gao, Jianpu Wang, Letian Dou, Yong Sheng Zhao (2024) Luminescent metal-halide perovskites: fundamentals, synthesis, and light-emitting devices Science in China Series B: Chemistry, Vol. 67, p. 1776-1838 Continue to DOI
Yu Wang, Feng Wang, Jiaxing Song, Jingchuan Ye, Jieying Cao, Xinxing Yin, Zhen Su, Yingzhi Jin, Lin Hu, Han Zuilhof, Zaifang Li, Wensheng Yan, Feng Gao (2024) Ethyl Thioglycolate Assisted Multifunctional Surface Modulation for Efficient and Stable Inverted Perovskite Solar Cells Advanced Functional Materials Continue to DOI
Joakim Argillander, Alvaro Alarcon, Chunxiong Bao, Chaoyang Kuang, Gustavo Lima, Feng Gao, Guilherme B Xavier (2024) Secure quantum random number generation with perovskite photonics QUANTUM COMPUTING, COMMUNICATION, AND SIMULATION IV, Article 129111B Continue to DOI
Xuran Wang, Mingliang Wang, Zilong Zhang, Dong Wei, Shidong Cai, Yuheng Li, Rui Zhang, Liangliang Zhang, Ruidan Zhang, Chenhui Zhu, Xiaozhen Huang, Feng Gao, Peng Gao, Yang Wang, Wei Huang (2024) De Novo Design of Spiro-Type Hole-Transporting Material: Anisotropic Regulation Toward Efficient and Stable Perovskite Solar Cells RESEARCH, Vol. 7, Article 0332 Continue to DOI
Hongling Yu, Feng Gao (2024) Zwitterionic additive for high-performance pure-blue perovskite light-emitting diodes ADVANCED PHOTONICS, Vol. 6, Article 020501 Continue to DOI
Heyong Wang, Antonella Treglia, Munirah D. Albaqami, Feng Gao, Annamaria Petrozza (2024) Tin-Halide Perovskites for Near-Infrared Light-Emitting Diodes ACS Energy Letters Continue to DOI
Weidong Cai, Jiajun Qin, Xinyu Ma, Shun Wang, Muyi Zhang, Tianjun Liu, Tiqiang Pang, Julia Morat, Yuequn Shang, Fuxiang Ji, Shengying Yue, Feng Gao (2024) Multicolor light emission and multifunctional applications in double perovskite-Cs 2 NaInCl 6 by Cu + /Sb 3+co-doping Chemical Engineering Journal, Vol. 489, Article 151212 Continue to DOI
Lei Xu, Sunsun Li, Wenchao Zhao, Yaomeng Xiong, Jinfeng Yu, Jinzhao Qin, Gang Wang, Rui Zhang, Tao Zhang, Zhen Mu, Jingjing Zhao, Yuyang Zhang, Shaoqing Zhang, Vakhobjon Kuvondikov, Erkin Zakhidov, Qiming Peng, Nana Wang, Guichuan Xing, Feng Gao, Jianhui Hou, Wei Huang, Jianpu Wang (2024) The Role of Solution Aggregation Property toward High-Efficiency Non-Fullerene Organic Photovoltaic Cells Advanced Materials Continue to DOI
Shaohui Liu, Zijian Chen, Yingming Liu, Lingjun Wu, Boyuan Wang, Zixuan Wang, Bobin Wu, Xinyu Zhang, Jie Zhang, Mengyun Chen, Hao Huang, Junzhi Ye, Paul K. Chu, Xue-Feng Yu, Lakshminarayana Polavarapu, Robert L. Z. Hoye, Feng Gao, Haitao Zhao (2024) Data-Driven Controlled Synthesis of Oriented Quasi-Spherical CsPbBr3 Perovskite Materials Angewandte Chemie International Edition, Vol. 63 Continue to DOI