Developing highly crystalline, single-phase and copper-poor Cu2ZnSnSe4 nanoparticles for solar cell application
| Autor: | Duc Huy Tran, Thanh Huy Pham, Duy Cuong Nguyen, Thi Thu Hien Nguyen, Hoang Vinh Tran, Viet Anh Dung Dang, Dieu Thu Le |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering Energy conversion efficiency chemistry.chemical_element Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Copper 0104 chemical sciences law.invention Crystallinity chemistry Chemical engineering Mechanics of Materials law Solar cell General Materials Science Single phase 0210 nano-technology Layer (electronics) Current density |
| Zdroj: | Materials Letters. 269:127654 |
| ISSN: | 0167-577X |
| Popis: | In this study, we report the synthesis of Cu(Zn,Sn)Se2 (CZTSe) nanoparticles by hot-injection method for application to the absorber layer in solar cells. The composition of elements in the CZTSe nanoparticles depends mainly on the injection speed of the Se precursor. By controlling the injection speed, we obtained complete single-phase CZTSe nanoparticles with high crystallinity and copper-poor composition. The nanoparticle diameter mainly ranged from ~ 7 nm to 18 nm. The obtained CZTSe nanoparticles were used to fabricate a light absorber layer in the CZTSe solar cells. The cell exhibited performance, with short-circuit current density of ~ 30.8 mA/cm2, open-circuit voltage of 0.39 V, fill factor of 0.47 and conversion efficiency of 5.8%. |
| Databáze: | OpenAIRE |
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