Sub‐Microsecond Molecular Thermometry Using Thermal Spin Flips | Zendy

Stehr J. | Zendy; Lupton J. M. | Zendy; Reufer M. | Zendy; Raschke G. | Zendy; Klar T. A. | Zendy; Feldmann J. | Zendy

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Sub‐Microsecond Molecular Thermometry Using Thermal Spin Flips

Author(s) -

Stehr J.,

Lupton J. M.,

Reufer M.,

Raschke G.,

Klar T. A.,

Feldmann J.

Publication year - 2004

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200400277

Subject(s) - microsecond , intersystem crossing , thermometer , materials science , thermal , population , optoelectronics , measure (data warehouse) , singlet state , atomic physics , optics , thermodynamics , excited state , physics , demography , database , sociology , computer science

The application of platinumporphyrin (an organic semiconductor) as a sensitive molecular thermometer is demonstrated. The instantaneous temperature controls the rate of reverse intersystem crossing after optical population of the triplet, so the ratio of triplet‐to‐singlet emission provides a measure of temperature (see Figure). Sudden electrical heating of a metallic electrode is monitored with sub‐microsecond accuracy, providing input to display design considerations.

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