Thermal quenching

Japanese: 温度消光 - おんどしょうこう
Thermal quenching

… Quenching occurs in the following ways: (1) the emission molecule loses its excitation energy through collision with a quenching substance, (2) a chemical reaction occurs through collision with a quenching substance, or an intermolecular compound that does not emit light is formed, or (3) the emission molecule changes to a molecular state that does not emit light through non-radiative transition or decomposition reaction. Therefore, quenching can be induced by collision with other quenching substances, or it can be due to external factors such as infrared irradiation (infrared quenching), temperature increase (thermal quenching or temperature quenching), or application of a magnetic field. Quenching due to an increase in the concentration of emission molecules is called concentration quenching or self-quenching. …

*Some of the terminology that refers to "thermal quenching" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… クエンチングは,(1)発光分子の有している励起エネルギーを消光物質との衝突によって失うか,(2)消光物質との衝突によって化学反応を起こしたり,発光を起こさない分子間化合物をつくるか,(3)発光分子が,非放射遷移や分解反応などによって発光を起こさない分子状態に変わる,などの方法で起こる。したがって,他の消光物質との衝突によって誘起される場合と,赤外線照射(赤外消光)や温度上昇(熱消光または温度消光)または磁場をかけるなどの外部からの作用に基づく場合とがある。発光分子の濃度の上昇による消光を濃度消光または自己消光という。…

※「温度消光」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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