气候变化领域集成服务门户(CCPortal): A universal solution processed interfacial bilayer enabling ohmic contact in organic and hybrid optoelectronic devices

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DOI	10.1039/c9ee02202c
	A universal solution processed interfacial bilayer enabling ohmic contact in organic and hybrid optoelectronic devices
	Troughton J.; Neophytou M.; Gasparini N.; Seitkhan A.; Isikgor F.H.; Song X.; Lin Y.-H.; Liu T.; Faber H.; Yengel E.; Kosco J.; Oszajca M.F.; Hartmeier B.; Rossier M.; Lüchinger N.A.; Tsetseris L.; Snaith H.J.; De Wolf S.; Anthopoulos T.D.; McCulloch I.; Baran D.
发表日期	2020
ISSN	17545692
起始页码	268
结束页码	276
卷号	13 期号:1
英文摘要	Optoelectronic devices typically require low-resistance ohmic contacts between the optical active layers and metal electrodes. Failure to make such a contact often results in a Schottky barrier which inhibits charge extraction and, in turn, reduces device performance. Here, we introduce a universal solution processable metal-oxide/organic interfacial bilayer which forms a near-perfect ohmic contact between both organic and inorganic semiconductors and metals. This bilayer comprises a Nb-doped TiO2 metal oxide with enhanced electron mobility and reduced trap density compared to pristine TiO2, in combination with a metal-chelating organic molecule to make an intimate electrical contact with silver metallic electrodes. Using this universal interfacial bilayer, we demonstrate substantial efficiency improvements in organic solar cells (from 9.3% to 12.6% PCE), light emitting diodes (from 0.6 to 2.2 cd W-1) and transistors (from 19.7 to 13.9 V threshold voltage). In particular, a boost in efficiency for perovskite solar cells (from 18.7% up to 20.7% PCE) with up to 83% fill factor is achieved with no-operational lifetime loss for at least 1000 hours under continuous, full-spectrum illumination. © 2020 The Royal Society of Chemistry.
英文关键词	Efficiency; Electric contactors; Electrodes; Ohmic contacts; Optoelectronic devices; Organic solar cells; Perovskite; Perovskite solar cells; Schottky barrier diodes; Threshold voltage; Titanium dioxide; Device performance; Efficiency improvement; Electrical contacts; Hybrid Optoelectronic Devices; Inorganic semiconductors; Metallic electrodes; Operational lifetime; Universal solutions; Metals; electron; electronic equipment; energy efficiency; equipment; performance assessment; perovskite
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/189743
作者单位	King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Thuwal, 23955-6900, Saudi Arabia; Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom; Avantama AG Laubisrutistrasse 50, Stäfa, Switzerland; Department of Physics, National Technical University of Athens, Athens, 15780, Greece; Department of Chemistry, Imperial College LondonSW7 2AZ, United Kingdom
推荐引用方式 GB/T 7714	Troughton J.,Neophytou M.,Gasparini N.,et al. A universal solution processed interfacial bilayer enabling ohmic contact in organic and hybrid optoelectronic devices[J],2020,13(1).
APA	Troughton J..,Neophytou M..,Gasparini N..,Seitkhan A..,Isikgor F.H..,...&Baran D..(2020).A universal solution processed interfacial bilayer enabling ohmic contact in organic and hybrid optoelectronic devices.Energy & Environmental Science,13(1).
MLA	Troughton J.,et al."A universal solution processed interfacial bilayer enabling ohmic contact in organic and hybrid optoelectronic devices".Energy & Environmental Science 13.1(2020).