Two-phase synthesized Cu2ZnSnS4 nanoparticles as inorganic hole-transporting material of paintable carbon-based perovskite solar cells
| Autor: | Mojgan Moradzadeh, Ali Mashreghi, Kiamehr Maleki |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Photoluminescence
Materials science Renewable Energy Sustainability and the Environment 020209 energy Energy conversion efficiency chemistry.chemical_element Nanoparticle 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Dielectric spectroscopy chemistry Dynamic light scattering Chemical engineering 0202 electrical engineering electronic engineering information engineering engineering General Materials Science Kesterite 0210 nano-technology Carbon Perovskite (structure) |
| Zdroj: | Solar Energy. 201:547-554 |
| ISSN: | 0038-092X |
| DOI: | 10.1016/j.solener.2020.03.036 |
| Popis: | In the present work, Cu2ZnSnS4 (known as kesterite) nanoparticles were synthesized by two-phase method. X-ray diffraction measurement confirmed formation of kesterite crystalline phase. Size of nanoparticles in colloidal suspension was determined by dynamic light scattering method and it was 9.2 ± 2.5 nm. The obtained nanoparticles were used as inorganic hole-transporting material (HTM) in paintable carbon-based PSC (C-PSC). Power conversion efficiency (PCE) was increased from 6.1% ± 1.1% for HTM-free paintable C-PSC to 9.3% ± 0.9% for paintable C-PSC with kesterite HTM. This significant increase in PCE was due to the higher hole-extraction rate at carbon counter-electrode, in the presence of kesterite HTM, which was confirmed by different measurement methods such as incident photon to current conversion efficiency, photoluminescence spectroscopy and electrochemical impedance spectroscopy. Although hot-injection synthesized kesterite nanoparticles have been previously used as inorganic HTM in Ag and Au-based PSCs, using kesterite nanoparticles, synthesized by a cheaper method, i.e. two-phase method, in C-PSCs was reported in the present work, for the first time. |
| Databáze: | OpenAIRE |
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