气候变化领域集成服务门户(CCPortal): Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells

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DOI	10.1039/c8ee02404a
	Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells
	Tavakoli M.M.; Tress W.; Milić J.V.; Kubicki D.; Emsley L.; Grätzel M.
发表日期	2018
ISSN	17545692
起始页码	3310
结束页码	3320
卷号	11 期号:11
英文摘要	The efficiency of perovskite solar cells (PSCs) is currently limited by non-radiative recombination losses. One potential loss channel consists of electrons recombining at the interface with the hole transport layer (HTL). We synthesized adamantylammonium halides (ADAHX, X = Cl-, Br-, I-) and demonstrated that ADAHI interacts with the perovskite surface using solid-state NMR spectroscopy. As a result, ADAHI reduces non-radiative recombination when added to the HTL, raising the PSC photovoltage to an average value of 1.185 V, the power conversion efficiency (PCE) to almost 22%, and the maximum external electroluminescence quantum yield to 2.5% at an injection current that is equal to the photocurrent under solar illumination. The lowest value measured for the loss in potential is only 365 mV with respect to the band gap, surpassing the highest-efficiency silicon solar cells. Devices with ADAHI-modified HTL show excellent operational stability for 500 hours. We show the general validity of our new approach for a variety of perovskite formulations and hole conductors. © The Royal Society of Chemistry 2018.
英文关键词	Efficiency; Electroluminescence; Energy gap; Hole mobility; Nuclear magnetic resonance spectroscopy; Perovskite; Perovskite solar cells; Silicon solar cells; Hole transport layers; Injection currents; Non-radiative recombinations; Operational stability; Potential loss; Power conversion efficiencies; Solar illumination; Solid-state NMR spectroscopy; Solar cells; electron; energy efficiency; fuel cell; halide; iodide; luminescence; perovskite; quantitative analysis; recombination; reduction; silicon
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190080
作者单位	Laboratoire de Photonique et Interfaces Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH, Lausanne, CH-1015, Switzerland; Laboratory of Magnetic Resonance (LRM), Institut des Sciences et Ingénierie Chimiques (ISIC), Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH, Lausanne, CH-1015, Switzerland
推荐引用方式 GB/T 7714	Tavakoli M.M.,Tress W.,Milić J.V.,et al. Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells[J],2018,11(11).
APA	Tavakoli M.M.,Tress W.,Milić J.V.,Kubicki D.,Emsley L.,&Grätzel M..(2018).Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells.Energy & Environmental Science,11(11).
MLA	Tavakoli M.M.,et al."Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells".Energy & Environmental Science 11.11(2018).