01703nas a2200205   4500008004100000022001400041245010200055210006900157260000800226300001400234490000800248520097000256653002501226653002301251653001701274653002701291100002001318700003101338856012801369       2024                        eng d  a0031-865500aOne-pot, easy and scalable synthesis of large-size short wave length IR emitting PbS quantum dots0 aOnepot easy and scalable synthesis of largesize short wave lengt  cJUL  a1020-10300 v1003 a<p>
	This study presents a versatile and efficient method to synthesize large-size lead sulfide (PbS) quantum dots (QDs) that display emission in the short-wave infrared (SWIR) region, using accessible and stable diethylammonium diethyldithiocarbamate (C-2)(2)DTCA and octylammonium octyldithiocarbamate (C(8)DTCA) as sulfur sources. As these sulfur sources enable the formation of well-dispersed, large-size PbS QDs in a very convenient way, this method can further be taken up for scale-up studies. Importantly, this approach allows precise control over QD sizes, thereby enhancing their SWIR optical properties. By adjusting the hot injection temperatures and sulfur source concentrations, different synthesis routes are explored, providing flexibility for the desired QD characteristics. The results presented here offer a promising opportunity to leverage the synthesized PbS QDs in applications such as optoelectronics, sensors, and imaging technology.</p>
10ahot injection method10aOptical properties10aquantum dots10ashort wave IR emission1 aSahu, Umasharan1 aPrasad, Bhagavatula, L. V.  uhttps://library.ncl.res.in/content/one-pot-easy-and-scalable-synthesis-large-size-short-wave-length-ir-emitting-pbs-quantum