@article {44482,
	title = {Generic and scalable method for the preparation of monodispersed metal sulfide nanocrystals with tunable optical properties},
	journal = {Langmuir},
	volume = {34},
	year = {2018},
	month = {MAY},
	pages = {5788-5797},
	abstract = {<p>A rational synthetic method that produces monodisperse and air-stable metal sulfide colloidal quantum dots (CQDs) in organic nonpolar solvents using octyl dithiocarbamic acid (C(8)DTCA) as a sulfur source, is reported. The fast decomposition of metal-C(8)DTCA complexes in presence of primary amines is exploited to achieve this purpose. This novel technique is generic and can be applied to prepare diverse CQDs, like CdS, MnS, ZnS, SnS, and In2S3, including more useful and in-demand PbS CQDs and plasmonic nanocrystals of Cu2S. Based on several control reactions, it is postulated that the reaction involves the in situ formation of a metal-C(8)DTCA complex, which then reacts in situ with oleylamine at slightly elevated temperature to decompose into metal sulfide CQDs at a controlled rate, leading to the formation of the materials with good optical characteristics. Controlled sulfur precursor{\textquoteright}s reactivity and stoichiometric reaction between C(8)DTCA and metal salts affords high conversion yield and large-scale production of monodisperse CQDs. Tunable and desired crystal size could be achieved by controlling the precursor reactivity by changing the reaction temperature and reagent ratios. Finally, the photovoltaic devices fabricated from PbS CQDs displayed a power conversion efficiency of 4.64\% that is comparable with the reported values of devices prepared with PbS CQDs synthesized by the standard methods.</p>},
	doi = {10.1021/acs.langmuir.8b00741},
	author = {Bera, Abhijit and Mandal, Debranjan and Goswami, Prasenjit N. and Rath, Arup K. and Bhagavatula L. V. Prasad}
}
@article {49616,
	title = {Germylene mediated reductive C-C and C-N coupling of an isocyanide and its device application},
	journal = {Angewandte Chemie-International Edition},
	volume = {64},
	year = {2025},
	month = {FEB },
	type = {Article},
	abstract = {<p>
	We have demonstrated a unique reductive coupling of 4-iodophenyl isocyanide, facilitated by a perimidine-based N-heterocyclic germylene (NHGe), which yields a bis-spirogerma compound featuring simultaneous C-C and C-N bond formation. This reaction, which leads to the oxidation of germanium from +2 to +4, represents a significant departure from previously documented isocyanide-germylene interactions. The product exhibits extensive conjugation across its bicyclic C4Ge2N2 framework, conferring distinct photophysical properties, including prominent orange luminescence in both solution and solid states. The photophysical properties are supported by the TD-DFT calculations confirming an n -\&gt;pi* transition. The potential application of this compound in optoelectronic devices, particularly as a hole transport layer in PbS quantum dot solar cells, is also explored, with promising preliminary results.</p>
},
	keywords = {Germylene, hole transport layer, Isocyanide, reductive coupling},
	doi = {10.1002/anie.202417052},
	author = {Gour, Kritika and Pramanik, Debjit and Dash, Soumya Ranjan and Shinde, Dipak Dattatray and Venugopal, Geethu and Vanka, Kumar and Rath, Arup K. and Sen, Sakya S.}
}
