Quantum-Chemical Modeling of Two Er3N@C80 Isomers

ECS Journal of Solid State Science and Technology The Electrochemical Society 12:9 (2023) 091004

Authors:

Zdeněk Slanina, Filip Uhlík, Shuaifeng Hu, Takeshi Akasaka, Xing Lu, Ludwik Adamowicz

High-bandwidth perovskite photonic sources on silicon

Nature Photonics Springer Nature 17:9 (2023) 798-805

Authors:

Aobo Ren, Hao Wang, Linjie Dai, Junfei Xia, Xinyu Bai, Edward Butler-Caddle, Joel A Smith, Huagui Lai, Junzhi Ye, Xiang Li, Shijie Zhan, Chunhui Yao, Zewei Li, Mingchu Tang, Xueping Liu, Jinxin Bi, Bowei Li, Shen Kai, Rui Chen, Han Yan, Jintao Hong, Liming Yuan, Igor P Marko, Adrian Wonfor, Fan Fu, Steven A Hindmarsh, Ana M Sanchez, James Lloyd-Hughes, Stephen J Sweeney, Akshay Rao, Neil C Greenham, Jiang Wu, Yanrong Li, Qixiang Cheng, Richard H Friend, Richard V Penty, Ian H White, Henry J Snaith, Wei Zhang

Impact of Interface Energetic Alignment and Mobile Ions on Charge Carrier Accumulation and Extraction in p‐i‐n Perovskite Solar Cells

Advanced Energy Materials Wiley 13:36 (2023)

Authors:

Weidong Xu, Lucy JF Hart, Benjamin Moss, Pietro Caprioglio, Thomas J Macdonald, Francesco Furlan, Julianna Panidi, Robert DJ Oliver, Richard A Pacalaj, Martin Heeney, Nicola Gasparini, Henry J Snaith, Piers RF Barnes, James R Durrant

Self-assembled monolayer-based blue perovskite LEDs.

Science advances 9:36 (2023) eadh2140

Authors:

Ya-Kun Wang, Fengyan Jia, Xiaoyue Li, Sam Teale, Pan Xia, Yuan Liu, Phoebe Tsz-Shan Chan, Haoyue Wan, Yasser Hassan, Muhammad Imran, Hao Chen, Luke Grater, Ling-Dong Sun, Gilbert C Walker, Sjoerd Hoogland, Zheng-Hong Lu, Chun-Hua Yan, Liang-Sheng Liao, Edward H Sargent

Abstract:

Blue perovskite light-emitting diodes (LEDs) have shown external quantum efficiencies (EQEs) of more than 10%; however, devices that emit in the true blue-those that accord with the emission wavelength required for Rec. 2100 primary blue-have so far been limited to EQEs of ~6%. We focused here on true blue emitting CsPbBr3 colloidal nanocrystals (c-NCs), finding in early studies that they suffer from a high charge injection barrier, a problem exacerbated in films containing multiple layers of nanocrystals. We introduce a self-assembled monolayer (SAM) active layer that improves charge injection. We identified a bifunctional capping ligand that simultaneously enables the self-assembly of CsPbBr3 c-NCs while passivating surface traps. We report, as a result, SAM-based LEDs exhibit a champion EQE of ~12% [CIE of (0.132, 0.069) at 4.0 V with a luminance of 11 cd/m2], and 10-fold-enhanced operating stability relative to the best previously reported Rec. 2100-blue perovskite LEDs.

Design considerations for the bottom cell in perovskite/silicon tandems: a terawatt scalability perspective

Energy & Environmental Science Royal Society of Chemistry 16:10 (2023) 4164-4190

Authors:

Matthew Wright, B Vicari Stefani, Tw Jones, B Hallam, Anastasia Soeriyadi, L Wang, Pietro Altermatt, Henry J Snaith, Gj Wilson, Ruy Sebastian Bonilla Osorio

Abstract:

Perovskite/silicon tandems have smashed through the 30% efficiency barrier, which represents a promising step towards high efficiency solar modules. However, the processing used to fabricate high efficiency devices is not compatible with mass production. For this technology to be impactful in the urgent fight against climate change and be scalable to the multi-terawatt (TW) level, a shift in mindset is required when designing the silicon bottom cell. In this work, we outline the design requirements for the silicon cell, with a particular focus on the constraints imposed by industrial processing. In doing so, we discuss the type of silicon wafers used, the surface treatment, the most appropriate silicon cell architecture and the formation of metal contacts. Additionally, we frame this discussion in the context of multi-TW markets, which impose additional constraints on the processing relating to the sustainability of the materials used. The discussion herein will help to shape the design of future silicon solar cells for use in tandems, so that the LCOE of solar electricity can be driven to new lows.