完整後設資料紀錄
DC 欄位語言
dc.contributor.authorLin, Yeo-Sinen_US
dc.contributor.authorAbate, Seid Yimeren_US
dc.contributor.authorLai, Kuan-Wenen_US
dc.contributor.authorChu, Chih-Weien_US
dc.contributor.authorLin, Yan-Duoen_US
dc.contributor.authorTao, Yu-Taien_US
dc.contributor.authorSun, Shih-Shengen_US
dc.date.accessioned2019-04-02T05:58:00Z-
dc.date.available2019-04-02T05:58:00Z-
dc.date.issued2018-12-05en_US
dc.identifier.issn1944-8244en_US
dc.identifier.urihttp://dx.doi.org/10.1021/acsami.8b16601en_US
dc.identifier.urihttp://hdl.handle.net/11536/148585-
dc.description.abstractThree azahelicene derivatives with electron-rich bis(4-methoxyphenyl)amino or bis(p-methoxyphenyl)aminophenyl groups at the terminals were deliberately designed, synthesized, and characterized as hole-transporting materials (HTMs) for perovskite solar cells (PSCs). Optical and thermal properties, energy level alignments, film morphologies, hole extraction ability, and hole mobility were studied in detail. PSCs using the newly synthesized molecules as HTMs were fabricated. A maximum power conversion efficiency (PCE) of 17.34% was observed for the bis(p-methoxyphenyl)amino-substituted derivative (SY1) and 16.10% for the bis(p-methoxyphenyeaminophenyl-substituted derivative (SY2). Longer-chain substituent such as hexyloxy group greatly diminishes the efficiency. In addition, the dopant-free devices fabricated with SY1 as the HTM shows an average PCE of 12.13%, which is significantly higher than that of spiro-OMeTAD (7.61%). The ambient long-term stability test revealed that after 500 h, the devices prepared from SY1 and SY2 retained more than 96% of its initial performance, which is much improved than the reference device with standard spiro-OMeTAD as the HTM under the same conditions. Detailed material cost analysis reveals that the material cost for SY1 is less than 8% of that for spiro-OMeTAD. These results provide a useful direction for designing a new class of HTMs to prepare highly efficient and more durable PSCs.en_US
dc.language.isoen_USen_US
dc.subjectperovskite solar cellsen_US
dc.subjecthole-transporting materialsen_US
dc.subjecthelicene-type moleculeen_US
dc.subjectcarbazoleen_US
dc.subjectazahelicenesen_US
dc.titleNew Helicene-Type Hole-Transporting Molecules for High-Performance and Durable Perovskite Solar Cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acsami.8b16601en_US
dc.identifier.journalACS APPLIED MATERIALS & INTERFACESen_US
dc.citation.volume10en_US
dc.citation.spage41439en_US
dc.citation.epage41449en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000452694100053en_US
dc.citation.woscount0en_US
顯示於類別:期刊論文