Fully printable hole-conductor-free mesoscopic perovskite solar cells based on mesoporous anatase single crystals
Author(s)
Xiong, Yuli
Liu, Yong
Lan, Kun
Mei, Anyi
Sheng, Yusong
Zhao, Dongyuan
Han, Hongwei
Griffith University Author(s)
Year published
2018
Metadata
Show full item recordAbstract
Mesoporous anatase singe crystal provides a large surface area and less carrier traps as compared to polycrystals; however, it is generally prepared with a particle size in micrometers by a complex method; this hinders its application as electron transport materials (ETMs) for mesoscopic perovskite solar cells (MPSCs). Herein, we fabricated a small-sized mesoporous anatase single crystal with a large surface area (169 m2 g−1) and an oliver-shape (about 120 nm in length and 60 nm in width) by a simple method and applied it as an ETM into a hole-conductor-free fully printable MPSC. As expected, a high-quality film was formed, ...
View more >Mesoporous anatase singe crystal provides a large surface area and less carrier traps as compared to polycrystals; however, it is generally prepared with a particle size in micrometers by a complex method; this hinders its application as electron transport materials (ETMs) for mesoscopic perovskite solar cells (MPSCs). Herein, we fabricated a small-sized mesoporous anatase single crystal with a large surface area (169 m2 g−1) and an oliver-shape (about 120 nm in length and 60 nm in width) by a simple method and applied it as an ETM into a hole-conductor-free fully printable MPSC. As expected, a high-quality film was formed, and the device showed an obvious increase in efficiency as compared to the P25 (commercial TiO2)-based device due to the faster electron extraction from perovskite to the ETM. This suggests that the mesoporous anatase single crystal is a promising ETM candidate for producing efficient fully-printable hole-conductor-free MPSCs.
View less >
View more >Mesoporous anatase singe crystal provides a large surface area and less carrier traps as compared to polycrystals; however, it is generally prepared with a particle size in micrometers by a complex method; this hinders its application as electron transport materials (ETMs) for mesoscopic perovskite solar cells (MPSCs). Herein, we fabricated a small-sized mesoporous anatase single crystal with a large surface area (169 m2 g−1) and an oliver-shape (about 120 nm in length and 60 nm in width) by a simple method and applied it as an ETM into a hole-conductor-free fully printable MPSC. As expected, a high-quality film was formed, and the device showed an obvious increase in efficiency as compared to the P25 (commercial TiO2)-based device due to the faster electron extraction from perovskite to the ETM. This suggests that the mesoporous anatase single crystal is a promising ETM candidate for producing efficient fully-printable hole-conductor-free MPSCs.
View less >
Journal Title
NEW JOURNAL OF CHEMISTRY
Volume
42
Issue
4
Subject
Chemical sciences