Rethinking the A cation in halide perovskites

JW Lee, S Tan, SI Seok, Y Yang, NG Park - Science, 2022 - science.org
The A cation in ABX3 organic-inorganic lead halide perovskites (OLHPs) was conventionally
believed to hardly affect their optoelectronic properties. However, more recent developments …

Genesis, challenges and opportunities for colloidal lead halide perovskite nanocrystals

QA Akkerman, G Rainò, MV Kovalenko, L Manna - Nature materials, 2018 - nature.com
Lead halide perovskites (LHPs) in the form of nanometre-sized colloidal crystals, or
nanocrystals (NCs), have attracted the attention of diverse materials scientists due to their …

Uncovering the mechanisms of efficient upconversion in two-dimensional perovskites with anti-Stokes shift up to 220 meV

B Wu, A Wang, J Fu, Y Zhang, C Yang, Y Gong… - Science …, 2023 - science.org
Phonon-assisted photon upconversion holds great potential for numerous applications, eg,
optical refrigeration. However, traditional semiconductors face energy gain limitations due to …

Phase segregation in mixed-halide perovskites affects charge-carrier dynamics while preserving mobility

SG Motti, JB Patel, RDJ Oliver, HJ Snaith… - Nature …, 2021 - nature.com
Mixed halide perovskites can provide optimal bandgaps for tandem solar cells which are key
to improved cost-efficiencies, but can still suffer from detrimental illumination-induced phase …

Impedance spectroscopy for perovskite solar cells: characterisation, analysis, and diagnosis

E Von Hauff, D Klotz - Journal of Materials Chemistry C, 2022 - pubs.rsc.org
Impedance spectroscopy (IS) has great potential to become a standard technique for the
characterisation, analysis, and diagnosis of perovskite solar cells (PSC). However, the …

Intriguing optoelectronic properties of metal halide perovskites

JS Manser, JA Christians, PV Kamat - Chemical reviews, 2016 - ACS Publications
A new chapter in the long and distinguished history of perovskites is being written with the
breakthrough success of metal halide perovskites (MHPs) as solution-processed …

Stabilizing perovskite structures by tuning tolerance factor: formation of formamidinium and cesium lead iodide solid-state alloys

Z Li, M Yang, JS Park, SH Wei, JJ Berry… - Chemistry of …, 2016 - ACS Publications
Goldschmidt tolerance factor (t) is an empirical index for predicting stable crystal structures
of perovskite materials. A t value between 0.8 and 1.0 is favorable for cubic perovskite …

Hybrid organic—inorganic perovskites: low-cost semiconductors with intriguing charge-transport properties

TM Brenner, DA Egger, L Kronik, G Hodes… - Nature Reviews …, 2016 - nature.com
Solution-processed hybrid organic–inorganic perovskites (HOIPs) exhibit long electronic
carrier diffusion lengths, high optical absorption coefficients and impressive photovoltaic …

Progress on perovskite materials and solar cells with mixed cations and halide anions

LK Ono, EJ Juarez-Perez, Y Qi - ACS applied materials & …, 2017 - ACS Publications
Organic–inorganic halide perovskite materials (eg, MAPbI3, FAPbI3, etc.; where MA=
CH3NH3+, FA= CH (NH2) 2+) have been studied intensively for photovoltaic applications …

Recent progress in mixed a‐site cation halide perovskite thin‐films and nanocrystals for solar cells and light‐emitting diodes

MM Byranvand, C Otero‐Martínez, J Ye… - Advanced Optical …, 2022 - Wiley Online Library
Over the past few years, lead‐halide perovskites (LHPs), both in the form of bulk thin films
and colloidal nanocrystals (NCs), have revolutionized the field of optoelectronics, emerging …