Anomalous Spectral Characteristics of Ultrathin sub-nm Colloidal CdSe Nanoplatelets
Sumanta Bose, Savas Delikanli, Aydan Yeltik, Manoj Sharma, Onur Erdem,, Cuong Dang, Weijun Fan, Dao Hua Zhang, Hilmi Volkan Demir
TL;DR
This paper reports on the unique spectral properties of ultrathin sub-nanometer CdSe nanoplatelets, highlighting their high quantum yield and anomalous absorption characteristics related to their size and polarization.
Contribution
It introduces the spectral behavior of two-monolayer CdSe nanoplatelets, revealing size-dependent anomalous absorption and high photoluminescence efficiency.
Findings
High quantum yield broad photoluminescence emission
Polarization-characterized size-dependent absorption anomalies
Observation of heavy hole and split-off hole absorption features
Abstract
We demonstrate high quantum yield broad photoluminescence emission of ultrathin sub-nanometer CdSe nanoplatelets (two-monolayer). They also exhibit polarization-characterized lateral size dependent anomalous heavy hole and light/split-off hole absorption intensities.
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