All-Inorganic Perovskite Solar Cells With Both High Open-Circuit Voltage and Stability

Zhang, Lei1; Hu, Tianle2,3; Li, Jinglei4,5; Zhang, Lin4,5; Li, Hongtao6; Lu, Zhilun7; Wang, Ge7

2020-01-08

10.3389/fmats.2019.00330

Frontiers in Materials   影响因子和分区

2296-8016

Metal halide perovskite solar cells based on all-inorganic CsPbBr3 have attracted considerable attentions recently, due to their high open-circuit voltage and good stability. However, the fabrication of CsPbBr3 film is limited by the poor solubility of cesium precursors in organic solvents by the one-step method. Here, we successfully fabricated CsPbBr3 film solar cells by employing colloid nanocrystal. The effects of technique parameters, including purification times, anneal temperatures, and spin-coating times on film morphology, optical spectra, and device performance are investigated in detail. The highest power conversion efficiency of 4.57% has been achieved based on a large open-circuit voltage of 1.45 V and a large short-circuit current of 9.41 mA cm(-2). A large open-circuit voltage results from the reduced non-radiative energy loss channels and defect states while a large short-circuit current is related to the high conductivity induced by the removal of organic ligands with the increased nanocrystal electronic coupling. Furthermore, excellent stability in air is disclosed on the unencapsulated device suggesting the enormous potential for developing high open-circuit photovoltaic devices with high stability in future.

inorganic perovskite solar cell stability open-circuit voltage nanocrystals

SCI ; EI

英语

第一

Foundation of Shenzhen Science and Technology Innovation Committee[JCYJ20180302174439113] ; Foundation of Shenzhen Science and Technology Innovation Committee[JCYJ20180504170444967]

Materials Science

Materials Science, Multidisciplinary

WOS:000509547400001

FRONTIERS MEDIA SA

20210809939975

Bromine compounds ; Cesium compounds ; Convergence of numerical methods ; Conversion efficiency ; Energy dissipation ; Lead compounds ; Metal halides ; Nanocrystals ; Open circuit voltage ; Perovskite ; Solar cells ; Sols ; Stability ; Timing circuits

Minerals:482.2 ; Energy Losses (industrial and residential):525.4 ; Energy Conversion Issues:525.5 ; Solar Cells:702.3 ; Pulse Circuits:713.4 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Numerical Methods:921.6

Web of Science

1.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Sch Microelect, Shenzhen, Peoples R China
2.Jilin Univ, Coll Phys, Innovat Ctr Computat Phys Methods & Software, Changchun, Peoples R China
3.Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun, Peoples R China
4.Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Educ Minist, Xian, Peoples R China
5.Xi An Jiao Tong Univ, Sch Elect Sci & Engn, Int Ctr Dielect Res, Xian, Peoples R China
6.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
7.Univ Sheffield, Dept Mat Sci & Engn, Sheffield, S Yorkshire, England

Zhang, Lei,Hu, Tianle,Li, Jinglei,et al. All-Inorganic Perovskite Solar Cells With Both High Open-Circuit Voltage and Stability[J]. Frontiers in Materials,2020,6.

Zhang, Lei.,Hu, Tianle.,Li, Jinglei.,Zhang, Lin.,Li, Hongtao.,...&Wang, Ge.(2020).All-Inorganic Perovskite Solar Cells With Both High Open-Circuit Voltage and Stability.Frontiers in Materials,6.

Zhang, Lei,et al."All-Inorganic Perovskite Solar Cells With Both High Open-Circuit Voltage and Stability".Frontiers in Materials 6(2020).