Effects of oleic acid on the stability of perovskite CsPbBr                         
                        3
                                                  quantum dot dispersions

Takuma Kosugi; Yoshiki Iso; Tetsuhiko Isobe

doi:10.1246/cl.180998_rfseq1

Effects of oleic acid on the stability of perovskite CsPbBr ₃ quantum dot dispersions

Takuma Kosugi, Yoshiki Iso, Tetsuhiko Isobe

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We investigated the effects of addition of oleic acid (OA) on the stability of CsPbBr ₃ quantum dot (QD) dispersions in toluene during storage and light irradiation. Excess amounts of OA degraded the fluorescent perovskite CsPbBr ₃ QDs because of promoted crystal growth through dissolution and reprecipitation. In contrast, a suitable amount of OA (0.2 vol%) improved their photostability possibly due to re-adsorption of OA on the exposed CsPbBr ₃ crystal surface after the photoinduced desorption of OA.

Original language	English
Pages (from-to)	349-352
Number of pages	4
Journal	Chemistry Letters
Volume	48
Issue number	4
DOIs	https://doi.org/10.1246/cl.180998_rfseq1
Publication status	Published - 2019 Jan 1

Keywords

Perovskite CsPbBr
Photoluminescence
Surface ligand

ASJC Scopus subject areas

Chemistry(all)

Access to Document

10.1246/cl.180998_rfseq1

Fingerprint Dive into the research topics of 'Effects of oleic acid on the stability of perovskite CsPbBr <sub>3</sub> quantum dot dispersions'. Together they form a unique fingerprint.

Cite this

Kosugi, T., Iso, Y., & Isobe, T. (2019). Effects of oleic acid on the stability of perovskite CsPbBr ₃ quantum dot dispersions Chemistry Letters, 48(4), 349-352. https://doi.org/10.1246/cl.180998_rfseq1

Effects of oleic acid on the stability of perovskite CsPbBr ₃ quantum dot dispersions . / Kosugi, Takuma; Iso, Yoshiki ; Isobe, Tetsuhiko.

In: Chemistry Letters, Vol. 48, No. 4, 01.01.2019, p. 349-352.

Research output: Contribution to journal › Article › peer-review

Kosugi, T, Iso, Y & Isobe, T 2019, ' Effects of oleic acid on the stability of perovskite CsPbBr ₃ quantum dot dispersions ', Chemistry Letters, vol. 48, no. 4, pp. 349-352. https://doi.org/10.1246/cl.180998_rfseq1

Kosugi T, Iso Y , Isobe T. Effects of oleic acid on the stability of perovskite CsPbBr ₃ quantum dot dispersions Chemistry Letters. 2019 Jan 1;48(4):349-352. https://doi.org/10.1246/cl.180998_rfseq1

Kosugi, Takuma ; Iso, Yoshiki ; Isobe, Tetsuhiko. / Effects of oleic acid on the stability of perovskite CsPbBr ₃ quantum dot dispersions In: Chemistry Letters. 2019 ; Vol. 48, No. 4. pp. 349-352.

@article{548e8fd9ad35486e9f1dc7d5df546af4,

title = " Effects of oleic acid on the stability of perovskite CsPbBr 3 quantum dot dispersions ",

abstract = " We investigated the effects of addition of oleic acid (OA) on the stability of CsPbBr 3 quantum dot (QD) dispersions in toluene during storage and light irradiation. Excess amounts of OA degraded the fluorescent perovskite CsPbBr 3 QDs because of promoted crystal growth through dissolution and reprecipitation. In contrast, a suitable amount of OA (0.2 vol%) improved their photostability possibly due to re-adsorption of OA on the exposed CsPbBr 3 crystal surface after the photoinduced desorption of OA. ",

keywords = "Perovskite CsPbBr, Photoluminescence, Surface ligand",

author = "Takuma Kosugi and Yoshiki Iso and Tetsuhiko Isobe",

year = "2019",

month = jan,

day = "1",

doi = "10.1246/cl.180998_rfseq1",

language = "English",

volume = "48",

pages = "349--352",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "Chemical Society of Japan",

number = "4",

}

TY - JOUR

T1 - Effects of oleic acid on the stability of perovskite CsPbBr 3 quantum dot dispersions

AU - Kosugi, Takuma

AU - Iso, Yoshiki

AU - Isobe, Tetsuhiko

PY - 2019/1/1

Y1 - 2019/1/1

N2 - We investigated the effects of addition of oleic acid (OA) on the stability of CsPbBr 3 quantum dot (QD) dispersions in toluene during storage and light irradiation. Excess amounts of OA degraded the fluorescent perovskite CsPbBr 3 QDs because of promoted crystal growth through dissolution and reprecipitation. In contrast, a suitable amount of OA (0.2 vol%) improved their photostability possibly due to re-adsorption of OA on the exposed CsPbBr 3 crystal surface after the photoinduced desorption of OA.

AB - We investigated the effects of addition of oleic acid (OA) on the stability of CsPbBr 3 quantum dot (QD) dispersions in toluene during storage and light irradiation. Excess amounts of OA degraded the fluorescent perovskite CsPbBr 3 QDs because of promoted crystal growth through dissolution and reprecipitation. In contrast, a suitable amount of OA (0.2 vol%) improved their photostability possibly due to re-adsorption of OA on the exposed CsPbBr 3 crystal surface after the photoinduced desorption of OA.

KW - Perovskite CsPbBr

KW - Photoluminescence

KW - Surface ligand

UR - http://www.scopus.com/inward/record.url?scp=85065609193&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065609193&partnerID=8YFLogxK

U2 - 10.1246/cl.180998_rfseq1

DO - 10.1246/cl.180998_rfseq1

M3 - Article

AN - SCOPUS:85065609193

VL - 48

SP - 349

EP - 352

JO - Chemistry Letters

JF - Chemistry Letters

SN - 0366-7022

IS - 4

ER -