Nanocrystal phononics

M Jansen, WA Tisdale, V Wood - Nature materials, 2023 - nature.com
Colloidal nanocrystals are successfully used as nanoscale building blocks for creating
hierarchical solids with structures that range from amorphous networks to sophisticated …

Confinement and exciton binding energy effects on hot carrier cooling in lead halide perovskite nanomaterials

BP Carwithen, TR Hopper, Z Ge, N Mondal, T Wang… - ACS …, 2023 - ACS Publications
The relaxation of the above-gap (“hot”) carriers in lead halide perovskites (LHPs) is
important for applications in photovoltaics and offers insights into carrier–carrier and carrier …

Interplay of phonon directionality and emission polarization in two-dimensional layered metal halide perovskites

R Krahne, ML Lin, PH Tan - Accounts of Chemical Research, 2024 - ACS Publications
Conspectus Layered metal halide perovskites represent a natural quantum well system for
charge carriers that provides rich physics, and the organic encapsulation of the inorganic …

Spatial Heterogeneity of Biexcitons in Two-Dimensional Ruddlesden–Popper Lead Iodide Perovskites

ZT Armstrong, KM Forlano, CR Roy… - Journal of the …, 2023 - ACS Publications
Quantum confinement in two-dimensional (2D) Ruddlesden–Popper (RP) perovskites leads
to the formation of stable quasi-particles, including excitons and biexcitons, the latter of …

Vibrational relaxation dynamics in layered perovskite quantum wells

LN Quan, Y Park, P Guo, M Gao, J Jin… - Proceedings of the …, 2021 - National Acad Sciences
Organic–inorganic layered perovskites, or Ruddlesden–Popper perovskites, are two-
dimensional quantum wells with layers of lead-halide octahedra stacked between organic …

Interlayer Charge Transport in 2D Lead Halide Perovskites from First Principles

W Li, S Giannini, C Quarti, Z Hou… - Journal of Chemical …, 2023 - ACS Publications
We report on the implementation of a versatile projection-operator diabatization approach to
calculate electronic coupling integrals in layered periodic systems. The approach is applied …

Discovery of enhanced lattice dynamics in a single-layered hybrid perovskite

Z Zhang, J Zhang, ZJ Liu, NS Dahod… - Science …, 2023 - science.org
Layered hybrid perovskites exhibit emergent physical properties and exceptional functional
performances, but the coexistence of lattice order and structural disorder severely hinders …

Inorganic frameworks of low-dimensional perovskites dictate the performance and stability of mixed-dimensional perovskite solar cells

B Febriansyah, Y Li, D Giovanni, T Salim… - Materials …, 2023 - pubs.rsc.org
Mixed-dimensional perovskites containing mixtures of organic cations hold great promise to
deliver highly stable and efficient solar cells. However, although a plethora of relatively bulky …

Phase transitions in low-dimensional layered double perovskites: the role of the organic moieties

B Martín-García, D Spirito, G Biffi… - The Journal of …, 2020 - ACS Publications
Halide double perovskites are an interesting alternative to Pb-containing counterparts as
active materials in optoelectronic devices. Low-dimensional double perovskites are …

Prominent reverse saturable absorption of lead-free two-dimensional organic-inorganic hybrid double perovskites promoted by defects

B Li, H Li, X Gao, MG Humphrey, C Zhang… - Materials Today …, 2023 - Elsevier
Abstract Two-dimensional (2D) organic-inorganic hybrid perovskites have exhibited
prominent reverse saturable absorption (RSA), yet their practical application is hindered by …