Figure 3
From: Quantum-Dot-Sensitized Solar Cell with Unprecedentedly High Photocurrent
Pb and Hg L3-edge EXAFS analysis of PbS and PbS:Hg QDs.
EXAFS data of Pb (a, c, e) and Hg (b, d, f) L3-edge region. (a),(b) Experimental k3X (k) EXAFS oscillations, (c),(d) Fourier transformed EXAFS data and (e)(f) the Fourier-filtered EXAFS data of (1) bulk PbS, (2) 0 mmol, (3) 2 mmol, (4) 4 mmol, (5) 6 mmol, (6) 8 mmol HgCl2 and (7) bulk HgS. In the (c), (d), (e) and (f), empty circles and solid lines represent the experimental and fitted data, respectively. (g) PbS and PbS:Hg quantum dot unit cell using ball-stick model, showing contraction of Pb-S bond via interstitial occupation of Hg ion.
