КФУ. Карточка публикации. Photoinduced Heating of Freestanding Azo-Polymer Thin Films Monitored by Scanning Thermal Microscopy

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PHOTOINDUCED HEATING OF FREESTANDING AZO-POLYMER THIN FILMS MONITORED BY SCANNING THERMAL MICROSCOPY

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2017

Язык

английский

Авторы, сотрудники КФУ

Сайкин Семен Константинович, автор

Салахов Мякзюм Халимулович, автор

Фишман Александр Израилович, автор

Харинцев Сергей Сергеевич, автор

Другие авторы

Алексеев Александр Михайлович, автор

Авторы, студенты КФУ

Черных Елена Александровна, автор

Библиографическое описание на языке оригинала

Kharintsev S.S., Chernykh E.A. , Fishman A.I., Saikin S.K., Alekseev A.M., and Salakhov M.Kh., Photoinduced Heating of Freestanding Azo-Polymer Thin Films Monitored by Scanning Thermal Microscopy, J. Phys. Chem. C, 2017, 121 (5), pp 3007–3012

Аннотация

Despite numerous attempts to capture a temperature rise in azobenzene-functionalized polymer thin films exposed to laser irradiation, so far no attention has been paid to direct temperature measurements. Here, we characterize a photoinduced heating of freestanding thin films using nanoscale resolution scanning thermal microscopy. The polymer films under study are composed of epoxy-based oligomers with chemically attached nitroazobenzene chromophores. A temperature change of 1.7 K only is observed when an 800 nm thick film is subject to resonant 532 nm illumination with a modest intensity of 25 mW/cm2. A freestanding and glass substrate supported 20 nm azo-polymer films exhibit an anomalous depression of the glass transition temperature by approximately 80 and 70 K, respectively, that is probed with thermally assisted atomic force microscopy. Our results show that the photoinduced heating can negatively affect an ordered state of the azo dyes within the polymer ultrathin film (<100 nm)

Ключевые слова

photo-induced heating, scanning thermal microscopy, glass transition temperature

Название журнала

J. Phys. Chem. C

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https://repository.kpfu.ru/?p_id=151848

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Сайкин Семен Константинович	ru_RU
dc.contributor.author	Салахов Мякзюм Халимулович	ru_RU
dc.contributor.author	Фишман Александр Израилович	ru_RU
dc.contributor.author	Харинцев Сергей Сергеевич	ru_RU
dc.contributor.author	Алексеев Александр Михайлович	ru_RU
dc.contributor.author	Черных Елена Александровна	ru_RU
dc.date.accessioned	2017-01-01T00:00:00Z	ru_RU
dc.date.available	2017-01-01T00:00:00Z	ru_RU
dc.date.issued	2017	ru_RU
dc.identifier.citation	Kharintsev S.S., Chernykh E.A. , Fishman A.I., Saikin S.K., Alekseev A.M., and Salakhov M.Kh., Photoinduced Heating of Freestanding Azo-Polymer Thin Films Monitored by Scanning Thermal Microscopy, J. Phys. Chem. C, 2017, 121 (5), pp 3007–3012	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=151848	ru_RU
dc.description.abstract	J. Phys. Chem. C	ru_RU
dc.description.abstract	Despite numerous attempts to capture a temperature rise in azobenzene-functionalized polymer thin films exposed to laser irradiation, so far no attention has been paid to direct temperature measurements. Here, we characterize a photoinduced heating of freestanding thin films using nanoscale resolution scanning thermal microscopy. The polymer films under study are composed of epoxy-based oligomers with chemically attached nitroazobenzene chromophores. A temperature change of 1.7 K only is observed when an 800 nm thick film is subject to resonant 532 nm illumination with a modest intensity of 25 mW/cm2. A freestanding and glass substrate supported 20 nm azo-polymer films exhibit an anomalous depression of the glass transition temperature by approximately 80 and 70 K, respectively, that is probed with thermally assisted atomic force microscopy. Our results show that the photoinduced heating can negatively affect an ordered state of the azo dyes within the polymer ultrathin film (<100 nm)	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	photo-induced heating	ru_RU
dc.subject	scanning thermal microscopy	ru_RU
dc.subject	glass transition temperature	ru_RU
dc.title	Photoinduced Heating of Freestanding Azo-Polymer Thin Films Monitored by Scanning Thermal Microscopy	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU