TY  - JOUR
AU  - Kahraman, Abdullah
AU  - Socie, Etienne
AU  - Nazari, Maryam
AU  - Kazazis, Dimitrios
AU  - Buldu-Akturk, Merve
AU  - Kabanova, Victoria
AU  - Biasin, Elisa
AU  - Smolentsev, Grigory
AU  - Grolimund, Daniel
AU  - Erdem, Emre
AU  - Moser, Jacques E.
AU  - Cannizzo, Andrea
AU  - Bacellar Cases da Silveira, Camila
AU  - Milne, Christopher
TI  - Tailoring p-Type Behavior in ZnO Quantum Dots through Enhanced Sol–Gel Synthesis: Mechanistic Insights into Zinc Vacancies
JO  - The journal of physical chemistry letters
VL  - 15
IS  - 6
SN  - 1948-7185
CY  - Washington, DC
PB  - ACS
M1  - PUBDB-2024-05900
SP  - 1755-1764
PY  - 2024
AB  - The synthesis and control of properties of p-type ZnO iscrucial for a variety of optoelectronic and spintronic applications;however, it remains challenging due to the control of intrinsic midgap(defect) states. In this study, we demonstrate a synthetic route to yieldcolloidal ZnO quantum dots (QD) via an enhanced sol−gel processthat effectively eliminates the residual intermediate reaction molecules,which would otherwise weaken the excitonic emission. This processsupports the creation of ZnO with p-type properties or compensationof inherited n-type defects, primarily due to zinc vacancies underoxygen-rich conditions. The in-depth analysis of carrier recombinationin the midgap across several time scales reveals microsecond carrierlifetimes at room temperature which are expected to occur via zinc vacancy defects, supporting the promoted p-type character of thesynthesized ZnO QDs.
LB  - PUB:(DE-HGF)16
C6  - pmid:38324709
UR  - <Go to ISI:>//WOS:001163436500001
DO  - DOI:10.1021/acs.jpclett.3c03519
UR  - https://bib-pubdb1.desy.de/record/614554
ER  -