Type

Journal Article

Authors

Jun Wang
Long Zhang
Jonathan N Coleman
Damien Hanlon
Kangpeng Wang
Ningning Dong
Xiaoyan Zhang
Yuanxin Li
Saifeng Zhang

Subjects

Physics

Topics
cross sections ground state phosphorus modelling transition state two dimensional layered materials three dimensional decay time

Slow and fast absorption saturation of black phosphorus: experiment and modelling. (2016)

Abstract According to the excited-state decay time, a slow saturable absorber model was employed to obtain the ground-state absorption and excited-state absorption cross sections σgs and σes of black phosphorus (BP) nanosheets, which are (1.25 ± 0.07) × 10(-16) cm(2) and (2.97 ± 0.21) × 10(-17) cm(2) at 515 nm, and (5.95 ± 0.17) × 10(-18) cm(2) and (5.19 ± 0.71) × 10(-19) cm(2) at 1030 nm, respectively. In comparison, the σgs and σes of MoS2 and graphene were also obtained with the same model. The ratio σes/σgs of BP is the smallest (only 0.24 ± 0.03 at 515 nm and 0.09 ± 0.01 at 1030 nm) among the three two-dimensional layered materials both at 515 nm and 1030 nm. Relatively large ground-state transition probability and weak loss of excited-state absorption result in good saturable absorption performance. In comparison with MoS2 and graphene, the much lower saturation intensity of BP can be well explained from this perspective.
Collections Ireland -> Trinity College Dublin -> PubMed

Full list of authors on original publication

Jun Wang, Long Zhang, Jonathan N Coleman, Damien Hanlon, Kangpeng Wang, Ningning Dong, Xiaoyan Zhang, Yuanxin Li, Saifeng Zhang

Experts in our system

1
Jun Wang
Trinity College Dublin
Total Publications: 37
 
2
Long Zhang
Trinity College Dublin
Total Publications: 6
 
3
Jonathan Coleman
Trinity College Dublin
Total Publications: 217
 
4
Damien Hanlon
Trinity College Dublin
Total Publications: 13
 
5
Kangpeng Wang
Trinity College Dublin
Total Publications: 5
 
6
Ningning Dong
Trinity College Dublin
Total Publications: 4
 
7
Xiaoyan Zhang
Trinity College Dublin
Total Publications: 6
 
8
Yuanxin Li
Trinity College Dublin
Total Publications: 3
 
9
Saifeng Zhang
Trinity College Dublin
Total Publications: 5