All solution processed low turn-on voltage near infrared LEDs based on core–shell PbS–CdS quantum dots with inverted device structure

Abstract

Highly luminescent PbS-CdS quantum dots are used for the fabrication of all-solution processed NIR-Light Emitting Devices (LEDs) with inverse configuration on large area.

Single step deposition of an interacting layer of a perovskite matrix with embedded quantum dots

“…In agreement with our previous work, 27 the CdS shell induces a notable enhancement of the EL signal, not only from the QDs but also from the PS, as one would expect from the efficient passivation of the surface states (Fig. S9).…”

Tunable light emission by exciplex state formation between hybrid halide perovskite and core/shell quantum dots: Implications in advanced LEDs and photovoltaics

“…Despite the amount of Cl being very low, we used the most common nomenclature in the literature for the MAPbI 3 PS synthesized using a PbCl 2 precursor ( 3 ) to clearly identify the synthesis process that has important implications in the final performance. Core/shell QDs have been chosen because the presence of the shell notably increases the PLQY (20% versus 1% for core PbS QDs in hexane solution) ( 21 ). The enhancement of PLQY has important implications in the performance of both visible ( 15 ) and infrared (IR) ( 21 ) QD LEDs.…”

“…Core/shell QDs have been chosen because the presence of the shell notably increases the PLQY (20% versus 1% for core PbS QDs in hexane solution) ( 21 ). The enhancement of PLQY has important implications in the performance of both visible ( 15 ) and infrared (IR) ( 21 ) QD LEDs. In addition, bilayers of QDs/PS and PS/QDs (see Fig.…”

Electrophoretic deposition of colloidal TiO2 nanorods towards nano-porous thin-films

“…The peculiar chemical-physical properties of colloidal nanocrystals, joined to their easy manipulation, make them appealing for a multitude of applications, ranging from medical to optoelectronics [1,2]. Titanium dioxide is one of the most investigated semiconductor material, due to its excellent and versatile properties and to its elevated chemical stability, which allow its application in several technological fields, from medicine to optoelectronics [3][4][5][6]. Electrophoretic deposition (EPD) is a useful process to deposit any soluble/dispersible material on conductive/insulating surfaces with the use of electric fields to drive the process.…”