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1 month ago | 
nature.com | Adam Clancy |Naitik A. Panjwani |Loren Picco |Alexander Eaton |Sascha Feldmann |Felix R. Fischer | +3 more
AbstractNanoribbons, nanometre-wide strips of a two-dimensional material, are a unique system in condensed matter. They combine the exotic electronic structures of low-dimensional materials with an enhanced number of exposed edges, where phenomena including ultralong spin coherence times1,2, quantum confinement3 and topologically protected states4,5 can emerge.
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Oct 8, 2024 | 
dx.doi.org | Giulia Lavarda |Ashish Sharma |Richard H. Friend |Marko Beslać
IntroductionClick to copy section linkSection link copied!Singlet fission (SF) (1,2) holds great potential as a down-conversion strategy to reduce energy losses and boost the efficiency of solar cells beyond the 33% thermodynamic limit. (3−6) In its simplest description, this process involves the interaction of a chromophore in the singlet excited state 1(S1) with a neighboring ground-state chromophore 1(S0) to afford two independent triplet excitons 3(T1) via a correlated triplet pair 1(T1T1).
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Sep 1, 2024 | 
eco-business.com | Richard H. Friend |Jutamas Kaewsuk |Pakamas Thinphanga
The Mekong region is renowned for the dramatic variation between the dry and rainy seasons. However, in line with climate change projections, we are already longer and drier dry seasons and shorter, more intense rainy seasons. At the same time, the timing of the seasons and the patterns of rainfall are becoming less predictable. Dry seasons are a natural phenomena but what constitutes a drought goes beyond the duration of the season and levels of rainfall.
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Aug 13, 2024 | 
downtoearth.org.in | Richard H. Friend |Jutamas Kaewsuk |Pakamas Thinphanga
Rainfall in the Mekong is getting more unpredictable highlighting the need for better land and water management processes. The Mekong region is renowned for the dramatic variation between the dry and rainy seasons. However, in line with climate change projections, we are already longer and drier dry seasons and shorter, more intense rainy seasons. At the same time, the timing of the seasons and the patterns of rainfall are becoming less predictable.
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Jun 25, 2024 | 
nature.com | Lingmei Kong |Yuqi Sun |Kangyu Ji |Yunguo Li |Yingguo Yang |Linjie Dai | +5 more
Correction to: Nature https://doi.org/10.1038/s41586-024-07531-9 Published online 12 June 2024In the version of the article initially published, the x axis of Fig. 3e originally began at “10–2” which has now been amended to “10–1” in the HTML and PDF versions of the article. About this articleKong, L., Sun, Y., Zhao, B. et al. Publisher Correction: Fabrication of red-emitting perovskite LEDs by stabilizing their octahedral structure. Nature (2024).
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Jun 19, 2024 | 
nature.com | Hwan-Hee Cho |Sebastian Gorgon |Giacomo Londi |Samuele Giannini |Changsoon Cho |Pratyush Ghosh | +8 more
AbstractThe development of luminescent organic radicals has resulted in materials with excellent optical properties for near-infrared emission. Applications of light generation in this range span from bioimaging to surveillance. Although the unpaired electron arrangements of radicals enable efficient radiative transitions within the doublet-spin manifold in organic light-emitting diodes, their performance is limited by non-radiative pathways introduced in electroluminescence.
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Jun 12, 2024 | 
nature.com | Lingmei Kong |Yuqi Sun |Kangyu Ji |Yunguo Li |Yingguo Yang |Linjie Dai | +5 more
AbstractLight-emitting diodes (LEDs) based on metal halide perovskites (PeLEDs) with high colour quality and facile solution processing are promising candidates for full-colour and high-definition displays1,2,3,4. Despite the great success achieved in green PeLEDs with lead bromide perovskites5, it is still challenging to realize pure-red (620–650 nm) LEDs using iodine-based counterparts, as they are constrained by the low intrinsic bandgap6.
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May 27, 2024 | 
nature.com | Kyung Mun Yeom |Changsoon Cho |Eui Hyuk Jung |Nam Joong Jeon |Miguel Anaya |Samuel D. Stranks | +2 more
AbstractEfficient photovoltaic devices must be efficient light emitters to reach the thermodynamic efficiency limit. Here, we present a promising prospect of perovskite photovoltaics as bright emitters by harnessing the significant benefits of photon recycling, which can be practically achieved by suppressing interfacial quenching.
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May 22, 2024 | 
industrymoves.com | Jamie Williamson |Richard H. Friend
Funds SA is on the hunt for a new chief investment officer.
The $43 billion asset manager confirmed Richard Friend is departing after almost eight years in the role.
Friend joined Funds SA in December 2016 to lead the investment team, coming across from AustralianSuper where he was an investment manager, a role he took on following its merger with AGEST Super.
He's also previously held senior roles with Warakirri Asset Management and Equip Super.
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May 8, 2024 | 
nature.com | Pratyush Ghosh |Antonios M. Alvertis |Petri Murto |Alexander J. Gillett |Shengzhi Dong |Hwan-Hee Cho | +5 more
AbstractThe coupling of excitons in π-conjugated molecules to high-frequency vibrational modes, particularly carbon–carbon stretch modes (1,000–1,600 cm−1) has been thought to be unavoidable1,2. These high-frequency modes accelerate non-radiative losses and limit the performance of light-emitting diodes, fluorescent biomarkers and photovoltaic devices.
