scholarly journals A Two-Step Absorber Deposition Approach To Overcome Shunt Losses in Thin-Film Solar Cells: Using Tin Sulfide as a Proof-of-Concept Material System

2016 ◽  
Vol 8 (34) ◽  
pp. 22664-22670 ◽  
Author(s):  
Vera Steinmann ◽  
Rupak Chakraborty ◽  
Paul H. Rekemeyer ◽  
Katy Hartman ◽  
Riley E. Brandt ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Tin Sulfide ◽  
Material System ◽  
Proof Of Concept

scholarly journals Optimization of Mo/Cr bilayer back contacts for thin-film solar cells

2018 ◽  
Vol 9 ◽  
pp. 2700-2707 ◽  
Author(s):  
Nima Khoshsirat ◽  
Fawad Ali ◽  
Vincent Tiing Tiong ◽  
Mojtaba Amjadipour ◽  
Hongxia Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Single Layer ◽  
Soda Lime ◽  
Thin Film Solar Cells ◽  
Soda Lime Glass ◽  
Tin Sulfide ◽  
Back Contact ◽  
Bilayer Films

Molybdenum (Mo) is the most commonly used material as back contact in thin-film solar cells. Adhesion of Mo film to soda–lime glass (SLG) substrate is crucial to the performance of solar cells. In this study, an optimized bilayer structure made of a thin layer of Mo on an ultra-thin chromium (Cr) adhesion layer is used as the back contact for a copper zinc tin sulfide (CZTS) thin-film solar cell on a SLG substrate. DC magnetron sputtering is used for deposition of Mo and Cr films. The conductivity of Mo/Cr bilayer films, their microstructure and surface morphology are studied at different deposition powers and working pressures. Good adhesion to the SLG substrate has been achieved by means of an ultra-thin Cr layer under the Mo layer. By optimizing the deposition conditions we achieved low surface roughness, high optical reflectance and low sheet resistivity while we could decrease the back contact thickness to 600 nm. That is two thirds to half of the thickness that is currently being used for bilayer and single layer back contact for thin-film solar cells. We demonstrate the excellent properties of Mo/Cr bilayer as back contact of a CZTS solar cell.

scholarly journals The impact of sodium contamination in tin sulfide thin-film solar cells

APL Materials ◽  
2016 ◽  
Vol 4 (2) ◽  
pp. 026103 ◽  
Author(s):  
Vera Steinmann ◽  
Riley E. Brandt ◽  
Rupak Chakraborty ◽  
R. Jaramillo ◽  
Matthew Young ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Tin Sulfide ◽  
The Impact

Rapid facile synthesis of Cu2ZnSnS4 nanocrystals

2014 ◽  
Vol 2 (27) ◽  
pp. 10389-10395 ◽  
Author(s):  
B. D. Chernomordik ◽  
A. E. Béland ◽  
N. D. Trejo ◽  
A. A. Gunawan ◽  
D. D. Deng ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Synthesis Temperature ◽  
Thin Film Solar Cells ◽  
Tin Sulfide ◽  
Facile Synthesis ◽  
Rapid Synthesis ◽  
Copper Zinc Tin Sulfide ◽  
Solar Absorber ◽  
Copper Zinc

A method for rapid synthesis of 2–40 nm diameter nanocrystal dispersions of the emerging sustainable thin-film solar absorber copper zinc tin sulfide is reported: the average crystals size is controlled by varying the synthesis temperature between 150 °C and 340 °C. Films cast from larger nanocrystals, are crack-free and suitable for making thin film solar cells.

Solution-based deposition of wurtzite copper zinc tin sulfide nanocrystals as a novel absorber in thin film solar cells

2016 ◽  
Vol 48 (4) ◽  
Author(s):  
Joël Hervé Nkuissi Tchognia ◽  
Youssef Arba ◽  
Khalid Dakhsi ◽  
Bouchaib Hartiti ◽  
Jean-Marie Ndjaka ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Tin Sulfide ◽  
Copper Zinc Tin Sulfide ◽  
Copper Zinc ◽  
Sulfide Nanocrystals

scholarly journals Effects of Sulfurization Pressure on the Conversion Efficiency of Cosputtered Cu2ZnSnS4Thin Film Solar Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Arun Khalkar ◽  
Kwang-Soo Lim ◽  
Seong-Man Yu ◽  
Dong-Wook Shin ◽  
Tae-Sik Oh ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Comparative Study ◽  
Conversion Efficiency ◽  
Atmospheric Pressure ◽  
Antireflection Coating ◽  
Thin Film Solar Cells ◽  
Czts Thin Film ◽  
Tin Sulfide ◽  
Device Efficiency

We report herein Cu2ZnSnS4(CZTS) thin film solar cells with 6.75% conversion efficiency, without an antireflection coating. The CZTS precursors have been prepared by cosputtering using three different targets on Mo-coated substrates: copper (Cu), tin sulfide (SnS), and zinc (Zn). The postsulfurization was carried out at different pressures in a H2S/N2environment at 550°C for one hour. A comparative study on the performances of solar cells with CZTS absorber layers prepared at different sulfurization pressures was carried out. The device efficiency of 1.67% using CZTS absorber and low pressure sulfurization is drastically improved, to an efficiency of 6.75% with atmospheric pressure sulfurization.

scholarly journals A Critical Review of Cu2SnS3 (CTS) Thin Films Solar Cells

2021 ◽  
Author(s):  
Md. Fakhrul Islam ◽  
Nadhrah Md Yatim ◽  
Puvaneswaran Chelvanathan ◽  
Mohammad Tanvirul Ferdaous ◽  
Mohd Azman Hashim@Ismail ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Solar Cell ◽  
Energy Demand ◽  
Thin Film Solar Cells ◽  
Structural Defects ◽  
Future Research ◽  
Tin Sulfide ◽  
X Ray

To increase energy demand, reliability, and increasing efficiency, thin-film solar cells get the main focus. Various types of solar cell like (Cu(In,Ga)Se2 (CIGS), Cadmium telluride (CdTe) and copper zinc tin sulfide (CZTS) based absorber compound now eliminated by CTS (Cu2SnS3) for different reason like toxicity, shortage and structural complexity. Focus on CTS is increasing because it is nontoxic and it is environmentally friendly. CTS-based solar cell's power conversation efficiency increases and 30% theoretical efficiency indicates it's developing sign. For analyzing the synthesis property, X-ray diffraction (XRD), Raman, Energy Dispersive X-ray (EDX), X-ray fluorescence (XRF) techniques are used. For the synthesis of thin-film solar cells like CTS, different physical methods are used among all sputtering methods. The electron beam evaporation vacuum evaporation method has exposed better efficiency and high product quality and reliability. Additionally, the composition, variation of thickness, structural defects, and elemental composition make the absorber layer's quality affect the performance. This paper has discussed the annealing treatment of CTS-based solar cell synthesis, and it's essential to improve the thin film properties of thin films. This paper describes the reason for efficiency reduction also the scope for future research.

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