Effects of Ammonia-Induced Surface Modification of Cu(In,Ga)Se-2 on High-Efficiency Zn(O,S)-Based Cu(In,Ga)Se-2 Solar Cells

Li, Jianmin1; Ma, Yaping1,4; Chen, Guilin2; Gong, Junbo1; Wang, Xiaomin3; Kong, Yifan1; Ma, Xuhang4; Wang, Kedong4; Li, Weimin5; Yang, Chunlei5; Xiao, Xudong1

2019-02

10.1002/solr.201800254

Solar RRL   影响因子和分区

2367-198X

Post-treatment of Cu(In,Ga)Se-2 (CIGS) surfaces, as an efficient way to improve the performance of CIGS solar cells, has received increasing attention in recent years. To alleviate the limitations of the as-grown CIGS thin films, such as oxidation, Na accumulation, and microstructure of CIGS surface, ammonia (NH3) etching solution was introduced to post-treat the CIGS surface to improve its quality in this study. To investigate the mechanisms of NH3 etching effects on the CIGS surfaces and the resulted devices, a series of NH3 solution treatments, of different concentrations, on CIGS films is carried out and the resulted surfaces and devices are carefully examined. It is demonstrated that proper concentration of NH3 solution could not only result in a new microstructure between CIGS and Zn(O,S) thin films but also improve the performance of the Zn(O,S) based CIGS solar cells, especially in terms of the device fill factor. As a result, a Zn(O, S) based CIGS solar cell with a conversion efficiency of over 20% is obtained with application of NH3 treatment together with MgF2 anti-reflective coating. Furthermore, it is found that NH3 treatment could effectively reduce the undesired light soaking effect, which often appears in the Zn(O,S) based CIGS solar cells.

ammonia post-treatment Cu(InGa)Se-2 surface modification Zn(O,S)

ESCI ; SCI ; EI

英语

其他

Hong Kong Innovation and Technology Fund of Hong Kong Innovation and Technology Council[ITS/249/17FP]

Materials Science

Materials Science, Multidisciplinary

WOS:000459580400001

WILEY-V C H VERLAG GMBH

20200908235639

Microstructure ; Antireflection coatings ; Etching ; Magnesium compounds ; Efficiency ; Thin films ; Fluorine compounds ; Solar cells ; Reflective coatings ; Copper compounds

Solar Cells:702.3 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2 ; Coating Materials:813.2 ; Production Engineering:913.1 ; Materials Science:951

Web of Science

1.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China;
2.Fujian Normal Univ, Coll Phys & Energy, Fuzhou 350007, Fujian, Peoples R China;
3.Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China;
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China;
5.Chinese Acad Sci, Shenzhen Inst Adv Technol, Ctr Informat Photon & Energy Mat, Shenzhen 518055, Peoples R China

Li, Jianmin,Ma, Yaping,Chen, Guilin,et al. Effects of Ammonia-Induced Surface Modification of Cu(In,Ga)Se-2 on High-Efficiency Zn(O,S)-Based Cu(In,Ga)Se-2 Solar Cells[J]. Solar RRL,2019,3(2).

Li, Jianmin.,Ma, Yaping.,Chen, Guilin.,Gong, Junbo.,Wang, Xiaomin.,...&Xiao, Xudong.(2019).Effects of Ammonia-Induced Surface Modification of Cu(In,Ga)Se-2 on High-Efficiency Zn(O,S)-Based Cu(In,Ga)Se-2 Solar Cells.Solar RRL,3(2).

Li, Jianmin,et al."Effects of Ammonia-Induced Surface Modification of Cu(In,Ga)Se-2 on High-Efficiency Zn(O,S)-Based Cu(In,Ga)Se-2 Solar Cells".Solar RRL 3.2(2019).