A novel interface layer for inverted perovskite solar cells fabricated in ambient air under high humidity conditions

CHOI F. P., Alishah H. M., Bozar S., Doyranli C., KOYUNCU S., SAN N., ...Daha Fazla

SOLAR ENERGY, cilt.209, ss.400-407, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 209
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.solener.2020.08.013
  • Dergi Adı: SOLAR ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Agricultural & Environmental Science Database, Applied Science & Technology Source, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, Geobase, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.400-407
  • Anahtar Kelimeler: Benzotriazol based small molecule, Hole transport layer, Electron blocking layer, Planar perovskite solar cells, Inverted structure, Perovskite grain size
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

A novel benzotriazol based small molecule (2-hexyl-4,7-bis(5'-hexyl-2,2'-bithien-5-yl)-2H-1,2,3-benzotriazole) "BTBT" was synthesized by Suzuki coupling reaction and was successfully employed in planar inverted perovskite solar cells with ITO/BTBT/PEDOT:PSS/CH3NH3PbI3-xCl(x)/PCBM/Al configuration. Fabrication processes, including the spin coating of the perovskite layer, were performed in ambient air, under high humidity conditions (>60%). BTBT/PEDOT:PSS bilayer notably improved the power conversion efficiencies (PCE) from 9.65% to 11.6%, which corresponds to an increase of 20%.