Photo-induced charge transfer and nonlinear absorption in dyads composed of a two-photon-absorbing donor and a perylene diimide acceptor
Huang, C; Sartin, MM; Siegel, N; Cozzuol, M; Zhang, Y; Hales, JM; Barlow, S; Perry, JW; Marder, SR
| HERO ID | 1594754 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Photo-induced charge transfer and nonlinear absorption in dyads composed of a two-photon-absorbing donor and a perylene diimide acceptor |
| Authors | Huang, C; Sartin, MM; Siegel, N; Cozzuol, M; Zhang, Y; Hales, JM; Barlow, S; Perry, JW; Marder, SR |
| Journal | Journal of Materials Chemistry |
| Volume | 21 |
| Issue | 40 |
| Page Numbers | 16119-16128 |
| Abstract | This paper reports the synthesis and electrochemical and optical properties of two molecular dyads (Dyad 1 and Dyad 2) consisting of a 2,7-bis(4-(diarylamino)styryl)carbazole two-photon-absorbing donor chromophore, connected by different linkers to a perylene diimide (PDI) acceptor. The photoinduced charge transfer in these compounds is characterised using transient absorption measurements. The use of the compounds for optical limiting is discussed; because of spectral overlap between the donor two-photon absorption band and the one-photon absorption band of the PDI radical anion, the dyads exhibit enhanced nonlinear absorption at wavelengths between 700 and 800 nm relative to that seen for the two-photon absorbing donor chromophore. The stronger nonlinear absorption observed for Dyad 1 vs. Dyad 2 is attributed to a higher yield of photo-generated radical ions and a longer lived charge-separated state, resulting from differences in the linker between the donor and acceptor. |
| Doi | 10.1039/c1jm12566d |
| Wosid | WOS:000295580800039 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000295580800039 |
| Is Public | Yes |