Beam-assisted large elongation of in situ formed Li2O nanowires
He Zheng1,3, Yang Liu2, Scott X. Mao3, Jianbo Wang1*, Jian Yu Huang2*
*To whom correspondence should be addressed. E-mail: jyhuang8@yahoo.com;
wang@whu.edu.cn
Supplementary Materials Include:
Figures S1-S5
Supplementary Movies 1, 2, 3
Supplementary Discussion
Figure
S1. Typical SAED pattern of single NW under long period (130 seconds)
electron beam irradiation extracted from the real-time video (Movie S3). The pattern
can be consistently indexed according to the structure of Li2O.
Figure S2. Elongation of a Li2O nanowire under e-beam irradiation. (a-c)
Sequential TEM images showing the elongation of Li2O nanowire under uniaxial
tensile loading with a strain rate of 4.1×10-3 s-1. The time-lapse from (a) to (c) is 0,
183 and 293 s, respectively. The current density is 4.7×10-4 A/cm2. The total
elongation is estimated to be ~80%.
Figure S3. Elongation of a Li2O nanowire under e-beam irradiation. (a-c)
Sequential TEM images showing the elongation of Li2O nanowire under uniaxial
tensile loading with a strain rate of 4.3×10-3 s-1. The time-lapse from (a) to (c) is 0,
110 and 263 s, respectively. The current density is 7.6×10-4 A/cm2. The total
elongation is estimated to be ~105%.
Figure S4. Elongation of a Li2O nanowire under e-beam irradiation. (a-c)
Sequential TEM images showing the elongation of Li2O nanowire under uniaxial
tensile loading with a strain rate of 1.4×10-3 s-1. The time-lapse from (a) to (c) is 0,
267 and 421 s, respectively. The current density is 3.2×10-4 A/cm2. The total
elongation is estimated to be ~110%.
Figure S5. Elongation of Li2O nanowire with the e-beam blanked. (a-c) TEM
images presenting the limited elongation of Li2O nanowire with the e-beam blanked
during the tensile loading with a strain rate of 1.3×10-3 s-1. The time lapse from (a) to
(c) is 0, 180, and 540 s, respectively. The total elongation is estimated to be ~57%.
Movies S1-S2: The large elongation of the Li2O NW under tensile loading with
e-beam illumination, recorded at 2 frames/sec, and played at 50× speed.
Movie S3: In situ recorded SAED patterns of Li2O NW, recorded at 2 frames/sec and
played at 25× speed.