TY - JOUR
T1 - Solution-Processable Ultrathin Black Phosphorus as an Effective Electron Transport Layer in Organic Photovoltaics
AU - Lin, Shenghuang
AU - Liu, Shenghua
AU - Yang, Zhibin
AU - Li, Yanyong
AU - Ng, Tsz Wai
AU - Xu, Zaiquan
AU - Bao, Qiaoliang
AU - Hao, Jianhua
AU - Lee, Chun-Sing
AU - Surya, Charles
AU - Yan, Feng
AU - Lau, Shu Ping
PY - 2016/2/9
Y1 - 2016/2/9
N2 - 2D van der Waals crystals, possessing excellent electronic and physical properties, have been intriguing building blocks for organic optoelectronic devices. Most of the 2D materials are served as hole transport layers in organic devices. Here,it is reported that solution exfoliated few layers black phosphorus (BP) can be served as an effective electron transport layer (ETL) in organic photovoltaics (OPVs) for the first time. The power conversion efficiencies (PCEs) of the BP-incorporated OPVs can be improved to 8.18% in average with the relative enhancement of 11%. The incorporation of BP flakes with the optimum thickness of ≈10 nm can form cascaded band structure in OPVs, which can facilitate electron transport and enhance the PCEs of the devices. This study opens an avenue in using solution exfoliated BP as a highly efficient ETL for organic optoelectronics.
AB - 2D van der Waals crystals, possessing excellent electronic and physical properties, have been intriguing building blocks for organic optoelectronic devices. Most of the 2D materials are served as hole transport layers in organic devices. Here,it is reported that solution exfoliated few layers black phosphorus (BP) can be served as an effective electron transport layer (ETL) in organic photovoltaics (OPVs) for the first time. The power conversion efficiencies (PCEs) of the BP-incorporated OPVs can be improved to 8.18% in average with the relative enhancement of 11%. The incorporation of BP flakes with the optimum thickness of ≈10 nm can form cascaded band structure in OPVs, which can facilitate electron transport and enhance the PCEs of the devices. This study opens an avenue in using solution exfoliated BP as a highly efficient ETL for organic optoelectronics.
KW - black phosphorus
KW - electron transport layer
KW - organic photovoltaics
KW - solution-processable
UR - http://www.scopus.com/inward/record.url?scp=84983097767&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84983097767&origin=recordpage
U2 - 10.1002/adfm.201503273
DO - 10.1002/adfm.201503273
M3 - RGC 21 - Publication in refereed journal
SN - 1057-9257
VL - 26
SP - 864
EP - 871
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 6
ER -
