TY - JOUR

T1 - Light-induced spin hyperpolarisation in condensed phase

AU - Morozova, Olga B.

AU - Yurkovskaya, Alexandra V.

AU - Vieth, Hans Martin

AU - Sosnovsky, Denis V.

AU - Ivanov, Konstantin L.

N1 - Publisher Copyright: © 2017 Informa UK Limited, trading as Taylor & Francis Group.

PY - 2017/12/2

Y1 - 2017/12/2

N2 - An overview of spin hyperpolarisation methods is given; such methods can be used for strong signal enhancement in nuclear magnetic resonance (NMR). We focus on techniques, which are operative in condensed phase and exploit light-induced processes to generate non-thermal spin hyperpolarisation. Such techniques are optical nuclear polarisation (ONP), Chemically induced dynamic nuclear polarisation (CIDNP) and optical pumping (OP). Since in all methods polarisation is transferred from primarily polarised spins to target spins, we also review existing methods for polarisation transfer. In the section dedicated to ONP, we provide its theoretical background as well as practical experimental aspects and describe applications of ONP in molecular crystals and in NV– centres in diamonds. In the CIDNP section, we discuss in detail the known mechanisms of CIDNP in liquids and in solids and outline CIDNP applications to detect elusive radicals, to determine their magnetic parameters and to enhance NMR signals. Finally, we provide a short description of OP in semiconductors, light-induced para-hydrogen induced polarisation and chemically induced dynamic electron polarisation. Advantages and challenges of light-induced spin hyperpolarisation are discussed and perspectives in this field are addressed.

AB - An overview of spin hyperpolarisation methods is given; such methods can be used for strong signal enhancement in nuclear magnetic resonance (NMR). We focus on techniques, which are operative in condensed phase and exploit light-induced processes to generate non-thermal spin hyperpolarisation. Such techniques are optical nuclear polarisation (ONP), Chemically induced dynamic nuclear polarisation (CIDNP) and optical pumping (OP). Since in all methods polarisation is transferred from primarily polarised spins to target spins, we also review existing methods for polarisation transfer. In the section dedicated to ONP, we provide its theoretical background as well as practical experimental aspects and describe applications of ONP in molecular crystals and in NV– centres in diamonds. In the CIDNP section, we discuss in detail the known mechanisms of CIDNP in liquids and in solids and outline CIDNP applications to detect elusive radicals, to determine their magnetic parameters and to enhance NMR signals. Finally, we provide a short description of OP in semiconductors, light-induced para-hydrogen induced polarisation and chemically induced dynamic electron polarisation. Advantages and challenges of light-induced spin hyperpolarisation are discussed and perspectives in this field are addressed.

KW - CIDNP

KW - EPR

KW - NMR

KW - ONP

KW - OP

KW - polarisation transfer

KW - spin hyperpolarisation

KW - PHOTOSYNTHETIC REACTION CENTERS

KW - EXCITED TRIPLET-STATES

KW - EPP

KW - OPTICAL NUCLEAR-POLARIZATION

KW - MAGNETIC-FIELD DEPENDENCE

KW - TIME-SCALE MOTIONS

KW - DYNAMIC ELECTRON POLARIZATION

KW - SHUTTLE DNP SPECTROMETER

KW - CIDNP MAS NMR

KW - PARAHYDROGEN-INDUCED POLARIZATION

KW - DOPED FLUORENE CRYSTALS

UR - http://www.scopus.com/inward/record.url?scp=85028531729&partnerID=8YFLogxK

U2 - 10.1080/00268976.2017.1363923

DO - 10.1080/00268976.2017.1363923

M3 - Review article

AN - SCOPUS:85028531729

VL - 115

SP - 2907

EP - 2943

JO - Molecular Physics

JF - Molecular Physics

SN - 0026-8976

IS - 23

ER -