High proton spin polarization with DNP using the triplet state of pentacene-
2012; Elsevier BV; Volume: 555; Linguagem: Inglês
10.1016/j.cplett.2012.11.007
ISSN1873-4448
AutoresTim R. Eichhorn, Michael Haag, B. van den Brandt, P. Hautle, W.Th. Wenckebach,
Tópico(s)Advanced Battery Materials and Technologies
ResumoThe proton spins in a large naphthalene single crystal have been very efficiently polarized using optically excited triplet states of fully deuterated pentacene (C22D14) guest molecules. In a field of 0.3 T a proton polarization of 0.50 has been achieved. As technique for dynamic nuclear polarization (DNP) the integrated solid effect (ISE) scheme was employed to transfer the large electron polarization of the triplet states directly to the proton spins on naphthalene.
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