Prof.Ma’s group











Welcome to the solar cell’s world !






Front-page Story


Ph. D Guozheng Shi published his paper on Advanced Energy Materials titled “Stable and Highly Effcient PbS Quantum Dot Tandem Solar Cells Employing a Rationally Designed Recombination Layer”



This study reports the fabrication of stable, high-performance, simple

structured tandem solar cells based on PbS colloidal quantum dots (CQDs) under ambient air. This study also reveals detailed device engineering to deposit each functional layer in the subcells at low temperature to avoid damage to the PbS CQDs and meanwhile makes the fabrication process compatible to flexible plastic substrate. Two effcient recombination layers (RLs) are rationally designed to connect the two subcells in series. The use of solution-processed RL with an organic PEDOT:PSS (poly(3,4-ethylenedioxythiophene): polystyrene sulfonate) interlayer leads to the fabrication of the tandem devices in solution process. The use of robust inorganic RL containing an ultrathin Au interlayer results in more effcient device performance and remarkably improved device lifetime. The optimal PbS CQDs tandem cells based on inorganic RL demonstrate a high power conversion efficiency approaching 9%. This effciency is more than two times higher than the previous record of 4.2%, which has been kept for more than fve years. The remarkable stability, high performance, and low-temperature processing of these tandem devices may provide insight into the commercialization of flexible and large-area CQDs tandem solar cells in the near future.


DOI: 10.1002/aenm.201602667



Ø  2017.09.10 Happy Teacher’s Day to Prof. Ma, Associate Prof. Yuan and Associate Prof. Cheng!

Ø  2017.09 Welcome new members: Ye Xue, Kang Ji, Yuli Qian, Qian Yang!

Ø  2017.08 Congrats to Si Chen on the acception of Advanced Energy Materials!

Ø  2017.08 Congrats to Jianyu Yuan on the publication of Journal of Materials Chemistry A!

Ø  2017.06 Congrats to Xufeng Lin on the publication of ACS Applied Materials & Interfaces!

Ø  2017.05.22 Congrats to Jianxia Sun, Guanqun Ding, Dayong Li on passing their oral defenses of postgraduates!

Ø  2017.05 Congrats to Guanqun Ding on the publication of Nano Energy!

Ø  2017.04 Lee Howell, the CEO of Kurt J. Lesker company in Europe visit our group!

Ø  2017.04.22 Graduates gathered together with us in Suzhou and played football with Prof. Wanli Ma abandoned!

Ø  2017.04.15 Celebrate birthday for our teacher’s wife!

Ø  2017.04.14 Spring tour to Tianmu Lake and Nanshan Bamboo Scenic Area in Changzhou!

Positions available

Undergraduate and master student in the field of chemistry/chemical engineering, physics, materials science and nano-science and other related majors are warmly welcomed to enter oneself for an examination. We encourage undergraduate students to participate in research and prepare your graduation thesis in our lab. Meanwhile, we welcome PhD students and postdoctoral fellow with related experience to join us.



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