Highly stable semi-transparent CH3NH3PbI3 sandwich type perovskite solar sub-module with neutral color. (September 2017)

• Record Type: Journal Article
• Authors: Heo, Jin Hyuck; Han, Jin; Shin, Dong Hee; Im, Sang Hyuk
• Is Part Of: Materials today energy. Volume 5(2017)
• Page Start: 280
• Page End: 286
• Publication Date: 2017-09
• Subjects: Semi-transparent -- Sandwich type -- Perovskite -- Sub-module -- Neutral color; Energy development -- Periodicals; Energy industries -- Periodicals; Power resources -- Periodicals; Energy policy -- Periodicals; Energy development; Energy industries; Energy policy; Power resources; Electronic journals; Periodicals; 621.042
• DOI: 10.1016/j.mtener.2017.07.009
• Languages: English
• ISSNs: 2468-6069

Abstract

Abstract: ∼10% semi-transparent neutral color sandwich type CH3 NH3 PbI3 (MAPbI3 ) perovskite sub-module (active area = 25 cm 2 ) with UV cross-linked polystyrene passivation layer showed ∼2.8% degradation of initial efficiency after continuous light soaking of 1 Sun for 1000 h at 55 °C. Due to the role of island-morphology-MAPbI3 as selective UV-cut mask, the UV curable monomeric compounds on the island-morphology-MAPbI3 /blocking TiO2 /F-doped tin oxide substrate could be selectively cross-linked polymerized by exposure of UV light and consequently the UV cured passivation layer could be reproducibly deposited in the gaps between perovskite islands after simple washing of unreacted residue. The degree of cross-linking was controlled by adjusting the concentration of divinylbezene cross-linker in the UV curable monomeric compounds from 1 to 7 mol% and eventually 5 mol% sample showed the best power conversion efficiency of 11.58% for forward scan condition and 11.95% for reverse scan condition (active area = 1 cm 2, geometric fill factor = 100%, average = 10.28 ± 0.96% for 40 samples: average visible transmittance = 20.1%). When the active area of the MAPbI3 perovskite sub-module increases to 1 → 25 → 100 cm 2, the power conversion efficiency was slightly decreased to 11.95 → 10.16 → 7.08% at 1 Sun condition. Graphical abstract: Highlights: We fabricated highly stable semi-transparent MAPbI3 perovskite sub-module. We reproducibly formed the polystyrene passivation inter-layer by UV curing. The sub-module exhibited ∼2.8% degradation after 1000 h 1 Sun light soaking at 55 °C.