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Nov 1, 2024 | 
pubs.rsc.org | Krishanu Dey |Samuel D. Stranks |Naveen K Tailor |Rohit Rohj
Unraveling low-temperature structural and dielectric characteristics in lead-free bismuth halide perovskites
Bismuth halide perovskite crystals have garnered a lot of interest lately because of their superior optoelectronic qualities, affordability, and ease of processing. Nonetheless, most of the research has concentrated on their room-temperature characteristics, leaving their low-temperature behavior largely unknown.
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Oct 23, 2024 | 
pubs.rsc.org | Fengqi You |Xueyu Tian |Samuel D. Stranks |Jinsong Huang
Perspectives for Sustainability Analysis of Scalable Perovskite Photovoltaics
Halide perovskite photovoltaics (PVs) are poised to become a critical high-efficiency renewable energy technology in the fight against climate change. This perspective aims to ensure the viability of perovskite PV as a sustainable technology by focusing on key areas such as end-of-life management and sustainability analysis.
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Oct 14, 2024 | 
nature.com | Rui Su |RUI ZHU |Deying Luo |Pengru Huang |Linjie Dai |Pietro Caprioglio | +16 more
AbstractObtaining micron-thick perovskite films of high quality is key to realizing efficient and stable positive (p)-intrinsic (i)-negative (n) perovskite solar cells1,2, but it remains a critical challenge. Here, we report an effective method for producing high-quality, micron-thick formamidinium-based perovskite films by forming coherent grain boundaries, where high-Miller-index-oriented grains grow on the low-Miller-index-oriented grains in a stabilized atmosphere.
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Oct 14, 2024 | 
nature.com | Xiaoyu Wang |Yuki Haruta |Yuefeng Nie |Ludong Li |Chuanxiao Xiao |Makhsud I. Saidaminov | +2 more
AbstractThe fabrication of scalable all-perovskite tandem solar cells is considered an attractive route to commercialize perovskite photovoltaic modules1. However, The certified efficiency of 1-cm2 scale all-perovskite tandem solar cells lags behind their small-area (~0.1 cm2) counterparts2,3. This performance deficit originates from inhomogeneity in wide-bandgap (WBG) perovskite solar cells (PSCs) at a large scale.
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Sep 18, 2024 | 
nature.com | Xi Wang |Xinxing Yin |Kangyu Ji |Linjie Dai |Haoming Liang |Xiangkun Jia | +5 more
AbstractHeterogeneity in transporting interfaces and perovskites poses a substantial challenge in improving the efficiency of perovskite solar cells from small to large scales, a key barrier to their commercial use. Here we find that the amorphous phases of self-assembling molecules (SAMs) can realize a more homogeneous perovskite growth.
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Sep 15, 2024 | 
nature.com | Junzhi Ye |Navendu Mondal |Ben P. Carwithen |Linjie Dai |Jian Qiang Mao |Pratyush Ghosh | +8 more
AbstractDefect tolerance is a critical enabling factor for efficient lead-halide perovskite materials, but the current understanding is primarily on band-edge (cold) carriers, with significant debate over whether hot carriers can also exhibit defect tolerance. Here, this important gap in the field is addressed by investigating how intentionally-introduced traps affect hot carrier relaxation in CsPbX3 nanocrystals (X = Br, I, or mixture).
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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 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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Mar 11, 2024 | 
nature.com | Xian-Gang Hu |Kangyu Ji |Peng-Xiang Hou |Chang Liu |Samuel D. Stranks |Hui-Ming Cheng
AbstractBifacial perovskite solar cells have shown great promise for increasing power output by capturing light from both sides. However, the suboptimal optical transmittance of back metal electrodes together with the complex fabrication process associated with front transparent conducting oxides have hindered the development of efficient bifacial PSCs. Here, we present a novel approach for bifacial perovskite devices using single-walled carbon nanotubes as both front and back electrodes.
