Browsing Gas Processing Center by Author "Pullerits, Tonu"
Now showing items 1-6 of 6
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Correlating structure and electronic band-edge properties in organolead halide perovskites nanoparticles
Zhu, Qiushi; Zheng, Kaibo; Abdellah, Mohamed; Generalov, Alexander; Haase, D�rthe; Carlson, Stefan; Niu, Yuran; Heimdal, Jimmy; Engdahl, Anders; Messing, Maria E.; Pullerits, Tonu; Canton, Sophie E.... more authors ... less authors ( Royal Society of Chemistry , 2016 , Article)After having emerged as primary contenders in the race for highly efficient optoelectronics materials, organolead halide perovskites (OHLP) are now being investigated in the nanoscale regime as promising building blocks ... -
Direct Experimental Evidence for Photoinduced Strong-Coupling Polarons in Organolead Halide Perovskite Nanoparticles
Zheng, Kaibo; Abdellah, Mohamed; Zhu, Qiushi; Kong, Qingyu; Jennings, Guy; Kurtz, Charles A.; Messing, Maria E.; Niu, Yuran; Gosztola, David J.; Al-Marri, Mohammed J.; Zhang, Xiaoyi; Pullerits, Tonu; Canton, Sophie E.... more authors ... less authors ( American Chemical Society , 2016 , Article)Echoing the roaring success of their bulk counterparts, nano-objects built from organolead halide perovskites (OLHP) present bright prospects for surpassing the performances of their conventional organic and inorganic ... -
High Excitation Intensity Opens a New Trapping Channel in Organic-Inorganic Hybrid Perovskite Nanoparticles
Zheng, Kaibo; Zidek, Karel; Abdellah, Mohamed; Chen, JunSheng; Chabera, Pavel; Zhang, Wei; Al-Marri, Mohammed J.; Pullerits, Tonu... more authors ... less authors ( American Chemical Society , 2016 , Article)We investigated the excited-state dynamics of CH3NH3PbBr3 perovskite nanoparticles (NPs) and bulk crystals under various excitation intensity regimes using transient absorption spectroscopy. We confirmed the sub-band gap ... -
Photostability of the Oleic Acid-Encapsulated Water-Soluble CdxSeyZn1-xS1-y Gradient Core-Shell Quantum Dots
Chen, Junsheng; Yang, Bin; Li, Chuanshuai; Zheng, Kaibo; Zidek, Karel; Pullerits, Tonu... more authors ... less authors ( American Chemical Society , 2017 , Article)Composite systems where quantum dots (QDs) are combined with other nanomaterials (e.g., gold nanorods) in aqueous solutions have attracted broad attention - both for their potential in applications and for studies of ... -
Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots
Chen, Junsheng; Zidek, Karel; Chabera, Pavel; Liu, Dongzhou; Cheng, Pengfei; Nuuttila, Lauri; Al-Marri, Mohammed J.; Lehtivuori, Heli; Messing, Maria E.; Han, Keli; Zheng, Kaibo; Pullerits, Tonu... more authors ... less authors ( American Chemical Society , 2017 , Article)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 ... -
Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots
Chen, Junsheng; Zidek, Karel; Abdellah, Mohamed; Al-Marri, Mohammed J; Zheng, Kaibo; Pullerits, TOnu... more authors ... less authors ( Institute of Physics Publishing , 2016 , Article)In a composite film of Cdx Sey Zn1-x S1-y gradient core-shell quantum dots (QDs) and gold nanorods (NRs), the optical properties of the QDs are drastically affected by the plasmonic nanoparticles. We provide a careful study ...