Charge transfer between lead halide perovskite nanocrystals and single-walled carbon nanotubes

Abstract

A charge transfer study between lead halide-based perovskite nanocrystals and single-walled carbon nanotubes (PNC@CNT nanocomposite) was performed.

Ternary Chalcogenide-Based Quantum Dots and Carbon Nanotubes: Establishing a Toolbox for Controlled Formation of Nanocomposites

“…This suggests an overall stronger interaction between negatively charged QDs and a-MWCNTs than between positively charged QDs and c-MWCNTs, as it is also described by Pan et al 62 It is further indicated that next to static quenching, dynamic quenching is present through PL decay lifetime measurement. 63 If the lifetime values remain unchanged in the presence of MWCNTs, it might be due to static quenching. However, as shown in Figure 6 , there was a decrease in lifetime with increasing amount of nanotubes, which supports our assumption of both static and dynamic luminescence quenching being present.…”

Efficient charge transfer from organometal lead halide perovskite nanocrystals to free base meso-tetraphenylporphyrins

“…Electron transport from perovskite to mesoporous titanium dioxide was studied by Gratzel et al 36 An earlier study explored the transfer of electrons from donor PNCs to classical acceptors such as TiO 2 , 37 perylenes, 38 fullerenes, 39,40 benzoquinone, 41 and carbon nanotubes. 42 In this context, Tang et al 43 In this work, we explicate the emission behavior of methylammonium lead halide (MAPbX 3 ) PNCs in solutions with or without TPP. The MAPbX 3 perovskite solution in the presence of TPP exhibits charge transfer and has been studied using photoluminescence (PL) spectroscopy, absolute photoluminescence quantum yield (PLQY) values and the timecorrelated single-photon count (TCSPC) technique.…”

“…Electron transport from perovskite to mesoporous titanium dioxide was studied by Gratzel et al 36 An earlier study explored the transfer of electrons from donor PNCs to classical acceptors such as TiO 2 , 37 perylenes, 38 fullerenes, 39,40 benzoquinone, 41 and carbon nanotubes. 42 In this context, Tang et al 43 used a diammonium porphyrin to study the charge transfer dynamics in CsPbBr 3 nanocrystals. Recently, Patra et al 44 demonstrated the charge transfer properties of CsPbBr 3 PNCs with 5,10,15,20-tetrakis(4′-pyridyl)porphyrin.…”

Charge transfer excitons in unfunctionalized graphite-wrapped MAPbBr3 nanocrystal composites with different morphologies

“…Motivated by the remarkable progress made in optoelectronic applications, [36][37][38][39] our group has recently reported the use of perovskite nanocrystals and carbon nanotube composites for efficient charge transfer studies. 40 Apart from the aforementioned specific system, semiconductor nanomaterials are used in photoelectrodes to conduct charge transfer experiments, which have a plethora of appealing features.…”