@article {43982,
	title = {Efficient exciton to dopant energy transfer in Mn2+-Doped (C<inf>4</inf>H<inf>9</inf>NH<inf>3</inf>)<inf>2</inf>PbBr<inf>4</inf> two-dimensional (2D) layered perovskites},
	journal = {Chemistry of Materials},
	volume = {29},
	year = {2017},
	month = {SEP},
	pages = {7816-7825},
	type = {Journal Article},
	abstract = {Three-dimensional ABX3 perovskite material has attracted immense interest and applications in optoelectronic devices, because of their enabling properties. Recently, Mn2+ doping directly into APbCl3-type three-dimensional (3D) nanocrystals, manifesting host-to-dopant energy transfer, have been reported for LED display applications. Strongly bound excitons in the doped system can enhance the dopant-carrier exchange interactions, leading to efficient energy transfer. Here, we report the simple and scalable synthesis of Mn2+-doped (C4H9NH3)2PbBr4 two-dimensional (2D) layered perovskites. The Mn2+-doped 2D perovskite shows enhanced energy transfer efficiency from the strongly bound excitons of the host material to the d electrons of Mn2+ ions, resulting in intense orange-yellow emission, which is due to spin-forbidden internal transition (4T1 {\textrightarrow} 6A1) with the highest quantum yield (Mn2+) of 37\%. Because of this high quantum yield, stability in ambient atmosphere, and simplicity and scalability of the synthetic procedure, Mn2+-doped 2D perovskites could be beneficial as color-converting phosphor material and as energy down-shift coating for perovskite solar cells. The newly developed Mn2+-doped 2D perovskites can be a suitable material to tune dopant-exciton exchange interactions to further explore their magneto-optoelectronic properties.},
	keywords = {Doping (additives), Energy Efficiency, Energy Transfer, Exchange interactions, Excitons, Light Emitting Diodes},
	issn = {0897-4756},
	doi = {10.1021/acs.chemmater.7b02429},
	author = {Biswas, A.},
	editor = {Bakthavatsalam, R.}
}
@article {43954,
	title = {Multicolour and nearly white light emission in YP<inf>0.8</inf>V<inf>0.2</inf>O<inf>4</inf>:Sm3+ nanorods: controlled energy transfer},
	journal = {Journal of Alloys and Compounds},
	volume = {726},
	year = {2017},
	month = {DEC},
	pages = {1161-1167},
	type = {Journal Article},
	abstract = {Nanorods of YP0.8V0.2O4:Sm{\textthreesuperior}$^{+}$ have been synthesized under hydrothermal conditions. Substitution of vanadium (V$^{5}$$^{+}$) sites in YVO4 by phosphorus ions (P$^{5}$$^{+}$) has been confirmed by Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. Careful selection of Sm{\textthreesuperior}$^{+}$ concentration in YP0.8V0.2O4 enables to achieve the controlled energy transfer from the VO4{\textthreesuperior}$^{-}$ absorption to the excited states of Sm{\textthreesuperior}$^{+}$ ions. The controlled energy transfer has been confirmed from the steady state luminescence and decay lifetime studies of VO4{\textthreesuperior}$^{-}$ emission. With the controlled retention of VO4{\textthreesuperior}$^{-}$ emission, tuning of light emission from the singly (Sm{\textthreesuperior}$^{+}$) doped YP0.8V0.2O4 nanorods is realized. At a particular doping concentration of Sm{\textthreesuperior}$^{+}$ (1.25 at.\%), a nearly white light emission is observed. The quantum yield of this nearly white light emission is found to be \~{}28\%. Tunability of the light and white light emission are supported by CIE chromaticity. The energy transfer efficiency from the VO4{\textthreesuperior}$^{-}$ absorption to the excited states of Sm{\textthreesuperior}$^{+}$ ion in YP0.8V0.2O4 reaches upto \~{}86\% with the doping concentration of 2.25 at.\%. 

},
	keywords = {Energy Transfer, Luminescence, Multicolor, Nanorod},
	doi = {10.1016/j.jallcom.2017.08.099},
	author = {Singh, N.S.},
	editor = {Wangkhem, R.}
}
@article {48758,
	title = {Thermally activated delayed fluorescent solvent-free organic liquid hybrids for tunable emission applications},
	journal = {Chemistry-An Asian Journal},
	volume = {18},
	year = {2023},
	month = {JUL },
	type = {Article},
	abstract = {<p>
	The synthetic feasibility and excellent luminescence features of organic molecules attracted much attention and were eventually found useful in lighting applications. In this context, a solvent-free organic liquid having attractive thermally activated delayed fluorescence features in bulk along with high processability has prime importance. Herein, we report a series of naphthalene monoimide-based solvent-free organic liquids exhibiting cyan to red thermally activated delayed fluorescence with luminescence quantum yields up to 80\% and lifetimes between 10 to 45 mu s. An effective approach explored energy transfer between liquid donors with various emitters exhibiting tunable emission colors, including white. The high processability of liquid emitters improved the compatibility with polylactic acid and was used for developing multicolor emissive objects using 3D printing. Our demonstration of the thermally activated delayed fluorescence liquid will be much appreciated as a processable alternate emissive material suitable for large-area lighting, display, and related applications.</p>
},
	keywords = {3D printing, Energy Transfer, OLED, Organic Liquids, TADF},
	issn = {1861-4728},
	doi = {10.1002/asia.202300276},
	author = {Nidhankar, Aakash D. D. and Goudappagouda and Kothavade, Premkumar D. and Dongre, Sangram D. and Veer, Sairam Dnyaneshwar and Dash, Soumya Ranjan and Rajeev, Kavya and Unni, K. N. Narayanan and Shanmuganathan, Kadhiravan and Babu, Sukumaran Santhosh}
}
