Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots

Junsheng Chen; Karel Žídek; Pavel Chábera; Dongzhou Liu; Pengfei Cheng; Lauri Nuuttila; Mohammed J. Al-Marri; Heli Lehtivuori; Maria E. Messing; Keli Han; Kaibo Zheng; Tõnu Pullerits

doi:10.1021/acs.jpclett.7b00613

Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr₃ Perovskite Quantum Dots

Junsheng Chen
, Karel Žídek
, Pavel Chábera
, Dongzhou Liu
, Pengfei Cheng
, Lauri Nuuttila
, Mohammed J. Al-Marri
, Heli Lehtivuori
, Maria E. Messing
, Keli Han^*
, Kaibo Zheng
, Tõnu Pullerits

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

194 Sitaatiot (Scopus)

Abstrakti

All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr₃ QDs have also been demonstrated as stable two-photon-pumped lasing medium. However, the reported two photon absorption (TPA) cross sections for these QDs differ by an order of magnitude. Here we present an in-depth study of the TPA properties of CsPbBr₃ QDs with mean size ranging from 4.6 to 11.4 nm. By using femtosecond transient absorption (TA) spectroscopy we found that TPA cross section is proportional to the linear one photon absorption. The TPA cross section follows a power law dependence on QDs size with exponent 3.3 ± 0.2. The empirically obtained power-law dependence suggests that the TPA process through a virtual state populates exciton band states. The revealed power-law dependence and the understanding of TPA process are important for developing high performance nonlinear optical devices based on CsPbBr₃ nanocrystals.

Alkuperäiskieli	Englanti
Sivut	2316-2321
Sivumäärä	6
Julkaisu	Journal of Physical Chemistry B
Vuosikerta	8
Numero	10
DOI - pysyväislinkit	https://doi.org/10.1021/acs.jpclett.7b00613
Tila	Julkaistu - 18 toukok. 2017
Julkaistu ulkoisesti	Kyllä
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This work was financed by the Swedish Research Council (VR) the Knut and Alice Wallenberg Foundation, and NPRP Grant # NPRP7-227-1-034 from the Qatar National Research Fund, Interreg Oresund-Kattegat-Skagerrak European regional development fund, and the Program of Study Abroad for Young Teachers by the Agricultural University of Hebei. Keli Han thanks the support from the National Natural Science Foundation of China (Grant No: 21533010).

!!ASJC Scopus subject areas

Yleinen materiaalitiede
Physical and Theoretical Chemistry

Pääsy asiakirjaan

10.1021/acs.jpclett.7b00613

Siteeraa tätä

@article{258ba03bbfe049aba1043d858f59e40d,

title = "Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots",

abstract = "All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing medium. However, the reported two photon absorption (TPA) cross sections for these QDs differ by an order of magnitude. Here we present an in-depth study of the TPA properties of CsPbBr3 QDs with mean size ranging from 4.6 to 11.4 nm. By using femtosecond transient absorption (TA) spectroscopy we found that TPA cross section is proportional to the linear one photon absorption. The TPA cross section follows a power law dependence on QDs size with exponent 3.3 ± 0.2. The empirically obtained power-law dependence suggests that the TPA process through a virtual state populates exciton band states. The revealed power-law dependence and the understanding of TPA process are important for developing high performance nonlinear optical devices based on CsPbBr3 nanocrystals.",

author = "Junsheng Chen and Karel {\v Z}{\'i}dek and Pavel Ch{\'a}bera and Dongzhou Liu and Pengfei Cheng and Lauri Nuuttila and Al-Marri, \{Mohammed J.\} and Heli Lehtivuori and Messing, \{Maria E.\} and Keli Han and Kaibo Zheng and T{\~o}nu Pullerits",

note = "Funding Information: This work was financed by the Swedish Research Council (VR) the Knut and Alice Wallenberg Foundation, and NPRP Grant \# NPRP7-227-1-034 from the Qatar National Research Fund, Interreg Oresund-Kattegat-Skagerrak European regional development fund, and the Program of Study Abroad for Young Teachers by the Agricultural University of Hebei. Keli Han thanks the support from the National Natural Science Foundation of China (Grant No: 21533010). Publisher Copyright: {\textcopyright} 2017 American Chemical Society. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2017",

month = may,

day = "18",

doi = "10.1021/acs.jpclett.7b00613",

language = "English",

volume = "8",

pages = "2316--2321",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

publisher = "American Chemical Society",

number = "10",

}

TY - JOUR

T1 - Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots

AU - Chen, Junsheng

AU - Žídek, Karel

AU - Chábera, Pavel

AU - Liu, Dongzhou

AU - Cheng, Pengfei

AU - Nuuttila, Lauri

AU - Al-Marri, Mohammed J.

AU - Lehtivuori, Heli

AU - Messing, Maria E.

AU - Han, Keli

AU - Zheng, Kaibo

AU - Pullerits, Tõnu

N1 - Funding Information: This work was financed by the Swedish Research Council (VR) the Knut and Alice Wallenberg Foundation, and NPRP Grant # NPRP7-227-1-034 from the Qatar National Research Fund, Interreg Oresund-Kattegat-Skagerrak European regional development fund, and the Program of Study Abroad for Young Teachers by the Agricultural University of Hebei. Keli Han thanks the support from the National Natural Science Foundation of China (Grant No: 21533010). Publisher Copyright: © 2017 American Chemical Society. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2017/5/18

Y1 - 2017/5/18

N2 - All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing medium. However, the reported two photon absorption (TPA) cross sections for these QDs differ by an order of magnitude. Here we present an in-depth study of the TPA properties of CsPbBr3 QDs with mean size ranging from 4.6 to 11.4 nm. By using femtosecond transient absorption (TA) spectroscopy we found that TPA cross section is proportional to the linear one photon absorption. The TPA cross section follows a power law dependence on QDs size with exponent 3.3 ± 0.2. The empirically obtained power-law dependence suggests that the TPA process through a virtual state populates exciton band states. The revealed power-law dependence and the understanding of TPA process are important for developing high performance nonlinear optical devices based on CsPbBr3 nanocrystals.

AB - All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing medium. However, the reported two photon absorption (TPA) cross sections for these QDs differ by an order of magnitude. Here we present an in-depth study of the TPA properties of CsPbBr3 QDs with mean size ranging from 4.6 to 11.4 nm. By using femtosecond transient absorption (TA) spectroscopy we found that TPA cross section is proportional to the linear one photon absorption. The TPA cross section follows a power law dependence on QDs size with exponent 3.3 ± 0.2. The empirically obtained power-law dependence suggests that the TPA process through a virtual state populates exciton band states. The revealed power-law dependence and the understanding of TPA process are important for developing high performance nonlinear optical devices based on CsPbBr3 nanocrystals.

U2 - 10.1021/acs.jpclett.7b00613

DO - 10.1021/acs.jpclett.7b00613

M3 - Article

C2 - 28480702

AN - SCOPUS:85019354037

SN - 1520-6106

VL - 8

SP - 2316

EP - 2321

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 10

ER -