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 | |
| Publication status | Published - 2019 Jan 1 |
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Keywords
- Perovskite CsPbBr
- Photoluminescence
- Surface ligand
ASJC Scopus subject areas
- Chemistry(all)
Cite this
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
}
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 -