Two-dimensional halide perovskites: synthesis, optoelectronic properties, stability, and applications

S Ghimire, C Klinke - Nanoscale, 2021 - pubs.rsc.org
Halide perovskites are promising materials for light-emitting and light-harvesting
applications. In this context, two-dimensional perovskites such as nanoplatelets or …

Halide perovskite two-terminal analog memristor capable of photo-activated synaptic weight modulation for neuromorphic computing

U Das, P Sarkar, B Paul, A Roy - Applied Physics Letters, 2021 - pubs.aip.org
Emulation of biological signal processing, learning and memory functions is essential for the
development of artificial learning circuitry. Two terminal artificial synapses are supposed to …

Mechano-optical modulation of excitons and carrier recombination in self-assembled halide perovskite quantum dots

Z Zhang, S Ghimire, T Okamoto, BM Sachith… - ACS …, 2022 - ACS Publications
Mechanically modulating optical properties of semiconductor nanocrystals and organic
molecules are valuable for mechano-optical and optomechanical devices. Halide …

Long-Range Interfacial Charge Carrier Trapping in Halide Perovskite-C60 and Halide Perovskite-TiO2 Donor–Acceptor Films

BM Sachith, T Okamoto, S Ghimire… - The Journal of …, 2021 - ACS Publications
Interfacial electron transfer across perovskite-electron acceptor heterojunctions plays a
significant role in the power-conversion efficiency of perovskite solar cells. Thus, electron …

Electroluminescence of Halide Perovskite Single Crystals Showing Stochastically Active Multiple Emitting Centers

SB Bhagyalakshmi, D Zhang, V Biju - The Journal of Physical …, 2022 - ACS Publications
Lead halide perovskites (LHPs) have been developed into promising materials for next-
generation energy-efficient LEDs and solar cells. The LHP LED efficiency has become …

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

A Jha, H Shankar, S Kumar, M Sankar, P Kar - Nanoscale Advances, 2022 - pubs.rsc.org
The efficient charge transfer from methylammonium lead halide, MAPbX3 (X= Br, I),
perovskite nanocrystals (PNCs) to 5, 10, 15, 20-tetraphenylporphyrin (TPP) molecules has …

Insight into the Importance of Charge Transfer Dynamics in CsPbBr3 Perovskite Nanocrystals for Photovoltaic Applications

P Dubey, L Mishra, A Panigrahi, S Dutta… - The Journal of …, 2024 - ACS Publications
Charge transfer (CT) kinetics at the interfaces of lead-halide-based perovskite nanocrystals
(PNCs) are pivotal in dictating the efficacies of energy conversion. Our investigation delves …

Effect of oxygen and polymer matrix on photo-induced changes in CdSe quantum dots

MM Emara, PG Van Patten - Materials Chemistry and Physics, 2020 - Elsevier
When quantum dots (QDs) are irradiated with light, they are subject to photoinduced
phenomena, such as photooxidation, photoluminescence (PL) blue-shift, photodarkening …

FAPbBr 3 perovskite nanocrystals decorated on a graphitic carbon nitride (gC 3 N 4) sheet for interfacial hole transfer

S Kumar, A Jha, P Kar - New Journal of Chemistry, 2023 - pubs.rsc.org
Hydrophobically capped formamidinium lead bromide (FAPbBr3) perovskite nanocrystals
(PNCs) exhibit bright green emission in the solution state. Photoluminescence (PL) spectral …

Photon recycling by energy transfer in piezochemically synthesized and close-packed methylammonium lead halide perovskites

S Ghimire, K Takahashi, Y Takano… - The Journal of …, 2019 - ACS Publications
Photon recycling by multiple reabsorption–emission is responsible for the long-range
energy transport in large crystals and thick films of lead halide perovskites, resulting in red …