Defects passivation by solution-processed titanium doping strategy towards high efficiency kesterite solar cells

被引:46
作者
Farooq, Umar [1 ]
Shah, Usman Ali [2 ]
Ishaq, Muhammad [1 ]
Hu, Ju-Guang [1 ]
Ahmed, Shehzad [3 ]
Chen, Shuo [1 ]
Zheng, Zhuang-Hao [1 ]
Su, Zheng-Hua [1 ]
Fan, Ping [1 ]
Liang, Guang-Xing [1 ]
机构
[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen Key Lab Adv Thin Films & Applicat, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China
[2] Univ Florence, Dept Phys & Astron, via G Sansone 1, I-50019 Sesto Fiorentino, Italy
[3] Xian Jiaotong Univ Xian, State Key Lab Mech Behav Mat, Xian, Peoples R China
基金
国家重点研发计划;
关键词
Cu2ZnSn; (S; Se)(4) solar cell; Titanium doping; Defect passivation; Efficiency; THIN-FILM; PHOTOVOLTAIC DEVICES; CU2ZNSNS4; HETEROJUNCTION; LAYER; AG;
D O I
10.1016/j.cej.2022.139109
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The performance of kesterite Cu2ZnSn(S,Se)(4) (CZTSSe) thin films solar cells is limited mainly because of the two technical bottlenecks, including multilayer crystallization in non-hydrazine solvents, and the presence of severe non-radiative recombination within the absorber layer and/or heterojunction region, resulting in large open-circuit voltage (V-oc) deficit. Herein, we show that by adding an environment-friendly 2-methoxyethanol sol -vent and adjusting the solution processing conditions without inserting any insulating layer between the Mo substrate and CZTSSe absorber, the multilayer crystals can be removed via a hybrid layered deposition (HLD) approach. In addition, we found that the introduction of Ti4+ in CZTSSe can substantially improve the film morphology, increase the grain size and suppress Cu-Sn defects. Consequently, solar cells based on Ti4+ doped CZTSSe film manifest a conspicuous enhancement in the V(oc )from 0.455 to 0.505 V with the lowest V-oc deficit of 0.278 V, J(SC) from 36.12 to 39.43 mA/cm(-2) along with a remarkable increment in the power conversion efficiency (PCE) from 9.48 to 12.07 %. These results unveil the encouraging prospects of judiciously developed Ti-doped CZTSSe thin-films to alleviate the V-oc deficit and boost the performance of kesterite solar cells.
引用
收藏
页数:9
相关论文
共 59 条
[1]   Reactively Sputtered Cu2ZnTiS4 Thin Film as Low-Cost Earth-Abundant Absorber [J].
Adiguzel, Seniha ;
Kaya, Derya ;
Genisel, Mustafa Fatih ;
Celik, Omer ;
Tombak, Ahmet ;
Ocak, Yusuf Selim ;
Turan, Rasit .
JOURNAL OF ELECTRONIC MATERIALS, 2017, 46 (07) :3976-3981
[2]   Flexible high-efficiency CZTSSe solar cells on stainless steel substrates [J].
Ahn, Kwangseok ;
Kim, Se-Yun ;
Kim, Sammi ;
Son, Dae-Ho ;
Kim, Seung-Hyun ;
Kim, SeongYeon ;
Kim, JunHo ;
Sung, Shi-Joon ;
Kim, Dae-Hwan ;
Kang, Jin-Kyu .
JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (43) :24891-24899
[3]   Impact of Minor Phases on the Performances of CZTSSe Thin-Film Solar Cells [J].
Altamura, Giovanni ;
Vidal, Julien .
CHEMISTRY OF MATERIALS, 2016, 28 (11) :3540-3563
[4]  
[Anonymous], ABUNDANCE ELEMENTS E
[5]   Determination of the minority carrier diffusion length in compositionally graded Cu(In,Ga)Se2 solar cells using electron beam induced current [J].
Brown, Gregory ;
Faifer, Vladimir ;
Pudov, Alex ;
Anikeev, Sergey ;
Bykov, Eugene ;
Contreras, Miguel ;
Wu, Junqiao .
APPLIED PHYSICS LETTERS, 2010, 96 (02)
[6]   High-Efficiency (LixCu1-x)2ZnSn(S,Se)4 Kesterite Solar Cells with Lithium Alloying [J].
Cabas-Vidani, Antonio ;
Haass, Stefan G. ;
Andres, Christian ;
Caballero, Raquel ;
Figi, Renato ;
Schreiner, Claudia ;
Marquez, Jose A. ;
Hages, Charles ;
Unold, Thomas ;
Bleiner, Davide ;
Tiwari, Ayodhya N. ;
Romanyuk, Yaroslav E. .
ADVANCED ENERGY MATERIALS, 2018, 8 (34)
[7]   Classification of Lattice Defects in the Kesterite Cu2ZnSnS4 and Cu2ZnSnSe4 Earth-Abundant Solar Cell Absorbers [J].
Chen, Shiyou ;
Walsh, Aron ;
Gong, Xin-Gao ;
Wei, Su-Huai .
ADVANCED MATERIALS, 2013, 25 (11) :1522-1539
[8]   Roughness-Controlled Cu2ZnSn(S,Se)4 Thin-Film Solar Cells with Reduced Charge Recombination [J].
Cheon, Ki Beom ;
Hwang, Sun Kyung ;
Seo, Se Won ;
Park, Jae-Hyun ;
Park, Min-Ah ;
Kim, Jin Young .
ACS APPLIED MATERIALS & INTERFACES, 2019, 11 (27) :24088-24095
[9]  
Chirila A, 2013, NAT MATER, V12, P1107, DOI [10.1038/NMAT3789, 10.1038/nmat3789]
[10]   Germanium Alloyed Kesterite Solar Cells with Low Voltage Deficits [J].
Collord, A. D. ;
Hillhouse, H. W. .
CHEMISTRY OF MATERIALS, 2016, 28 (07) :2067-2073