Journal
METALS
Volume 12, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/met12122096
Keywords
spherical; iron pyrite; buffer layer; graphene oxide; vacuum free
Funding
- Materials/Parts Technology Development Program - Ministry of Trade, Industry and Energy (MOTIE, Korea) [20007170, 20006820]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2022R1I1A1A01071414]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20006820] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The vacuum-free quantum dots solar cell (VFQDSC) was fabricated using FeS2 and ZnO nanoparticles as the acceptor and donor materials respectively. By utilizing graphene oxide (GO) as the hole transport buffer layer (HTBL) and zinc oxide (ZnO) as the electron transport buffer layer (ETBL), the device achieved a maximum power conversion efficiency (PCE) of 3.6%.
The vacuum-free quantum dots solar cell (VFQDSC) was fabricated without using any vacuum process. The spherical iron pyrite (FeS2) nanoparticles (SNPs) and ZnO nanoparticles (NPs) were synthesized and characterized. In the device structure, FeS2 SNPs were used as an acceptor material (n-type), and the low band gap polymer of poly[4,8-bis(2-ethylhexyloxyl)benzo[1,2-b:4,5-b ']-dithiophene-2,6-diyl-alt-ethylhexyl-3-fluorothieno[3,4-b]thiophene-2-carboxylate-4,6-diyl] (PBT7) was used as a donor material (p-type). In this study, we first applied the graphene oxide (GO) as the hole transport buffer layer (HTBL) and zinc oxide (ZnO) as an electron transport buffer layer (ETBL), which were considered to improve the charge transportation efficiency of the device's system. The device with the structure of the Glass/ITO/HTBL/FeS2 SNPs, PBT7/ ETBL/E-GaIn were fabricated with a maximum power conversion efficiency (PCE) of 3.6%.
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