Table. 1 Characteristic times.

From: Optical-field driven charge-transfer modulations near composite nanostructures

Substrate

τCS (ps)a

τCR (ps)b

τCS/τCR (x10-3)

Fused Silica

0.23 ± 0.05

226 ± 5

1.0 ± 0.2

h = 10 nm

0.55 ± 0.05

391 ± 5

1.4 ± 0.2

h = 20 nm

0.54 ± 0.05

355 ± 5

1.9 ± 0.2

h = 50 nm

0.61 ± 0.05

320 ± 5

2.3 ± 0.2

h = 75 nm

0.67 ± 0.05

296 ± 5

2.6 ± 0.2

h = 100 nm

0.74 ± 0.05

283 ± 5

3.1 ± 0.3

h = 125 nm

0.85 ± 0.05

272 ± 5

2.6 ± 0.2

h = 150 nm

0.77 ± 0.05

297 ± 5

1.8 ± 0.2

h = 175 nm

0.61 ± 0.05

336 ± 5

2.1 ± 0.2

h = 200 nm

0.65 ± 0.05

304 ± 5

2.5 ± 0.2

h = 250 nm

0.70 ± 0.05

281 ± 5

2.9 ± 0.3

h = 300 nm

0.78 ± 0.05

269 ± 5

2.1 ± 0.2

h = 400 nm

0.62 ± 0.05

294 ± 5

2.6 ± 0.2

h = 500 nm

0.69 ± 0.05

270 ± 5

2.2 ± 0.2

h = 625 nm

0.61 ± 0.05

282 ± 5

2.0 ± 0.2

h = 750 nm

0.57 ± 0.05

293 ± 5

2.4 ± 0.2

h = 875 nm

0.64 ± 0.05

272 ± 5

1.8 ± 0.2

  1. Charge separation (τCS), recombination (τCR), and their ratio (τCS/τCR) obtained by transmittance mode transient absorption spectroscopy of donor:acceptor thin films on 4 pair substrates of different spacer thickness (h).
  2. a100 fs.
  3. b10 ps time interval.
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