Effect of the stacked structure on performance in CZTSSe thin film solar cells

Wang, Li Ching; Lin, Yi‐Cheng

doi:10.1016/j.apsusc.2015.05.104

Cited by 11 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, diverse controlled drug‐release properties of films can be easily achieved with the interaction of various components in the formation of LBL multilayer films . During the preparation of LBL self‐assembled multilayer membranes, changes in the assembly conditions (e.g., temperature, concentration of substrate surface properties, charge density and molecular weight of polyelectrolyte, ionic strength and pH value of polyelectrolyte solution) could affect the assembling mechanism of polyelectrolyte or growth model of films . As far as we know, there is almost no work in literature describing the relationship between the electrical conductivity and the concentration of polyelectrolyte.…”

Section: Introductionmentioning

confidence: 99%

Layer‐by‐layer self‐assembly of a lignin–poly(vinyl alcohol) based polyelectrolyte with a conductivity method

Zhang

Jiang

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this study, we made a new attempt to examine the relationship between the conductivity and the concentration of a polyelectrolyte solution and to prepare multilayer films with cationic lignin and polyanions through layer-by-layer self-assembly. The nitrogen content of trimethyl lignin quaternary amine salt (TLQA) was 3.56%, and the carboxyl content of carboxymethylated poly (vinyl alcohol) (CMPVA) was 0.62 mmol/g. Attenuated total reflectance spectra confirmed that TLQA and CMPVA were fabricated and assembled successfully. The concentration of TLQA had a polynomial correlation with the conductivity [correlation coefficient (R 2 ) 5 0.9953], and the concentration of CMPVA was linear with the conductivity (R 2 5 0.9819). The electrostatic sequential adsorption process was monitored with a UV-visible spectrophotometer, and the morphology of the (TLQA/CMPVA) n (where n is the number of double membranes) multilayer film was observed by atomic force microscopy and scanning electron microscopy. When the absorbance of the (TLQA/CMPVA) n multilayer film increased linearly, the linear equation was y 5 0.0267x 1 0.07453 and R 2 was 0.9735. When five layers of TLQA and CMPVA were assembled, the surface root mean square roughness of TLQA and CMPVA were 21.07 and 65.28 nm, respectively. When the number of layers increased, the film surface roughness increased. The stability of the multilayer films in aqueous solution was determined by a conductivity meter. The (TLQA/CMPVA) n multilayer film was stable in water. The results of the research demonstrate for the first time that TLQA and CMPVA could be assembled and successfully driven by electrostatic forces.

show abstract

Section: Introductionmentioning

confidence: 99%

Layer‐by‐layer self‐assembly of a lignin–poly(vinyl alcohol) based polyelectrolyte with a conductivity method

Zhang

Jiang

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The above observations explain the origin of high R s and low FF exhibited by our fabricated solar cells. Many of the CZTSSe cells with comparable efficiencies reported in the literature suffer from significant amounts of detrimental Cu 2-x S(Se), Cu 2 SnS(Se) 3 , and/or SnS(Se) 2 compound formation[30][31][32].…”

mentioning

confidence: 99%

Performance limiting factors of Cu2ZnSn(S Se1−)4 solar cells prepared by thermal evaporation

Das

Bhattacharya

Mandal

2016

Solar Energy Materials and Solar Cells

View full text Add to dashboard Cite

Cu 2 ZnSn(S x Se 1-x) 4 (CZTSSe) thin film solar cells have been prepared by vacuum-based thermal evaporation of metal and binary sulfide precursors followed by annealing in a mixed chalcogen vapor at 550°C for one hour. The Zn/Sn ratio in the precursor was varied from 0.75-1.50 keeping the Cu/(Zn+Sn) ratio constant at 0.7. The best performing solar cell was obtained with a final film composition of Cu/(Zn+Sn) = 0.77 and Zn/Sn = 1.13 corresponding to a Zn/Sn ratio of 0.9 in the precursor. The champion cell exhibited an open-circuit voltage (V OC) of 506 mV, shortcircuit current density (J SC) of 22.92 mA/cm 2 , and a fill factor (FF) of 35% resulting in a total area efficiency (η) of 4.06% without any antireflection coating. Cell performance was found to be limited by high series resistance (R S) = 31.1 Ω and a low shunt resistance (R sh) = 125.2 Ω. No detrimental secondary phases, such as Cu 2-x S(Se) or ZnS were detected in the absorber film. Microstructural investigation suggested that small multigrain structure of the CZTSSe absorber layer, presence of an interfacial Mo(S,Se) y blocking barrier, and micro air-voids at the Mo back contact are the major contributors to the origin of high R s. Morphological study of the CZTSSe film surface by atomic force microscopy revealed micro-pores that act as low resistance shunt paths and explains the source of such low R sh. The performance limiting factors of the vacuum based thermally evaporated CZTSSe thin film solar cells are reported.

show abstract

Formulation of selenium-rich Cu2ZnSn(SxSe1-x)4 film through non-vacuum dip coating technique

Chaudhari

Kannan

Madhuri

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Effect of the stacked structure on performance in CZTSSe thin film solar cells

Cited by 11 publications

References 27 publications

Layer‐by‐layer self‐assembly of a lignin–poly(vinyl alcohol) based polyelectrolyte with a conductivity method

Layer‐by‐layer self‐assembly of a lignin–poly(vinyl alcohol) based polyelectrolyte with a conductivity method

Performance limiting factors of Cu2ZnSn(S Se1−)4 solar cells prepared by thermal evaporation

Formulation of selenium-rich Cu2ZnSn(SxSe1-x)4 film through non-vacuum dip coating technique

Contact Info

Product

Resources

About