Reversed oxygen sensing using colloidal quantum wells towards highly emissive photoresponsive varnishes

Lorenzon, Monica; Christodoulou, Sotirios; Vaccaro, G.; Pedrini, Jacopo; Meinardi, Francesco; Moreels, Iwan; Brovelli, Sergio

doi:10.1038/ncomms7434

Cited by 78 publications

(138 citation statements)

References 56 publications

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“…SEC experiments in a controlled atmosphere have demonstrated the ability of colloidal quantum wells to probe oxidative species through brightening of their PL …”

Section: Advantages In Usementioning

confidence: 99%

Spectroelectrochemistry of Quantum Dots

Garoz‐Ruiz

Perales-Rondón

Heras

et al. 2019

Israel Journal of Chemistry

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Spectroelectrochemistry (SEC) is a set of techniques with many advantages in the study and characterization of materials. Although SEC has not yet been widely used to study quantum dots (QDs), the information extracted from SEC experiments about these nanostructures is very useful. Most of the works that use SEC to study QDs are high‐quality pieces of research. This review intends to show how to perform SEC in an easy way and what information can be obtained using these techniques. Most of the examples shown in this review are related to semiconductor and carbon QDs. After a brief introduction, some optoelectronic properties of QDs and the main SEC techniques are described. The capabilities of SEC for the study of QDs are illustrated with examples extracted from literature. Finally, the needs of SEC to become a user‐friendly technique and its evolution to become more powerful are commented in the last section of the review.

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“…SEC experiments in a controlled atmosphere have demonstrated the ability of colloidal quantum wells to probe oxidative species through brightening of their PL …”

Section: Advantages In Usementioning

confidence: 99%

Spectroelectrochemistry of Quantum Dots

Garoz‐Ruiz

Perales-Rondón

Heras

et al. 2019

Israel Journal of Chemistry

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“…While it is also known that perovskite NCs in only oxygen atmosphere can be preserved in the ground state for a long time . Similar phenomena have been found in perovskite NCs just like the oxygen‐boost effect for CdSe NCs; that is, the exposure to oxygen reversibly increases their luminescence efficiency determined by hole trapping in surface defects . Due to the ionic properties of perovskite NCs, they have high sensitivity to humidity.…”

Section: Discussionmentioning

confidence: 72%

“…251 Similar phenomena have been found in perovskite NCs just like the oxygen-boost effect for CdSe NCs; that is, the exposure to oxygen reversibly increases their luminescence efficiency determined by hole trapping in surface defects. 252 Due to the ionic properties of perovskite NCs, they have high sensitivity to humidity. Even in dark conditions, certain humidity will make perovskite NCs decompose.…”

Section: Discussionmentioning

confidence: 99%

Metal halide perovskite nanocrystals and their applications in optoelectronic devices

Wang

et al. 2019

InfoMat

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In recent years, metal halide perovskite nanocrystals (NCs) have been favored by many researchers due to their unique properties including long carrier diffusion length, high carrier mobility, tunable emission wavelength, and narrow full width at half maximum, making them great application potentials in optoelectronic devices. The photoluminescence quantum yields of perovskite NCs are nearly 100%, and the device efficiency of perovskite NC‐based light‐emitting diodes (LEDs) has been improved significantly from below 0.1% to over 20%. In addition, perovskite NC‐based solar cells and photodetectors have also developed rapidly in recent years. Here, we summarize the synthesis and the basic optoelectronic properties of metal halide perovskite NCs and introduce their applications in LEDs, solar cells, and photodetectors.

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“…В низ-котемпературных спектрах ФЛ легированных (а иногда и не легированных специально) двумерных структур наблюдаются две линии, экситонная и трионная, см. например [47][48][49][50][51].…”

Section: мцпл экситонов и трионов в двумерных системахunclassified

Магнитная Циркулярная Поляризация Фотолюминесценции Экситонов

Ивченко¹

2018

Физика Твердого Тела

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Дан обзор экспериментальных и теоретических исследований циркулярной поляризации фотолюминес-ценции экситонов в полупроводниках во внешнем магнитном поле. Преимуществом методики МЦПЛ является ее относительная простота. В частности, она не требует спектрального разрешения зеемановских подуровней экситона и может быть применена к широкому классу объектов со спектрально широкими линиями или полосами ФЛ: в объемных полупроводниках с экситонами, локализованными на дефектах кристаллической решетки и флуктуациях состава, в структурах с квантовыми ямами и квантовыми точками типа I и II, двумерных дихалькогенидах переходных металлов и квантовых микрорезонаторах. Рассмотрены основные механизмы магнитной циркулярной поляризации люминесценции. Показано, что для описания поляризованной фотолюминесценции в появляющихся новых наносистемах приходится или модифицировать установленные механизмы, или разрабатывать дополнительные механизмы МЦПЛ.Работа выполнена при поддержке Российского научного фонда (проект 14-12-01067).

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Reversed oxygen sensing using colloidal quantum wells towards highly emissive photoresponsive varnishes

Cited by 78 publications

References 56 publications

Spectroelectrochemistry of Quantum Dots

Spectroelectrochemistry of Quantum Dots

Metal halide perovskite nanocrystals and their applications in optoelectronic devices

Магнитная Циркулярная Поляризация Фотолюминесценции Экситонов

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