Materials interface engineering for solution-processed photovoltaics

Gräetzel, Michael; Janssen, Raj René; Mitzi, David B.; Sargent, Edward H.

doi:10.1038/nature11476

Cited by 1,040 publications

(823 citation statements)

References 93 publications

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“…1c). 30,38,39 In our case we employ carboxylic acid (R-COOH) functionalized molecules, a commonly used binding group to TiO 2 . Once grafted to the semiconductor surface, the passivation of midgap states is observed as the Fermi level is shifted (see ESI S1 †).…”

Section: Sams To Passivate the Metal-semiconductor Interfacementioning

confidence: 99%

Molecular interfaces for plasmonic hot electron photovoltaics

2015

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Section: Sams To Passivate the Metal-semiconductor Interfacementioning

confidence: 99%

Molecular interfaces for plasmonic hot electron photovoltaics

2015

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“…24,25 The surface defects are unstable and dissipative in energy, which are unfavorable for efficient electron injection in PVs. 23,[26][27][28] In addition, the reported CDs are generally passivated with insulating long chain molecules, 10,12,29 which act as tunneling barriers and are against efficient electron injection and well performing CD-based optoelectronic devices. 22,30 To realize efficient CD-sensitized TiO 2 PVs under sunlight, the CDs should exhibit intrinsic absorption in the visible region and be integrated effectively with TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Towards efficient photoinduced charge separation in carbon nanodots and TiO₂ composites in the visible region

Sun

et al. 2015

Phys. Chem. Chem. Phys.

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Towards efficient photoinduced charge separation in carbon nanodots and TiO2 composites in the visible region Sun, M.; Qu, S.; Ji, W.; Jing, P.; Li, D.; Qin, L.; Cao, J.; Zhang, H.; Zhao, J.; Shen, D. General rights It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. In this work, photoinduced charge separation behaviors in non-long-chain-molecule-functionalized carbon nanodots (CDs) with visible intrinsic absorption (CDs-V) and TiO 2 composites were investigated. Efficient photoinduced electron injection from CDs-V to TiO 2 with a rate of 8.8 Â 10 8 s À1 and efficiency of 91% was achieved in the CDs-V/TiO 2 composites. The CDs-V/TiO 2 composites exhibited excellent photocatalytic activity under visible light irradiation, superior to pure TiO 2 and the CDs with the main absorption band in the ultraviolet region and TiO 2 composites, which indicated that visible photoinduced electrons and holes in such CDs-V/TiO 2 composites could be effectively separated. The incident photon-to-current conversion efficiency (IPCE) results for the CD-sensitized TiO 2 solar cells also agreed with efficient photoinduced charge separation between CDs-V and the TiO 2 electrode in the visible range. These results demonstrate that non-long-chainmolecule-functionlized CDs with a visible intrinsic absorption band could be appropriate candidates for photosensitizers and offer a new possibility for the development of a well performing CD-based photovoltaic system.

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“…Hence, a DSSC based configuration is adopted for most of the photocatalytic charging systems 241. The charges generated by the incident radiation are stored by a faradaic reaction (like LIB) or double layer charge storage (like supercapacitors) or a combination of both (hybrid supercapacitors).…”

Section: Self‐reliant Energy Systems For Wearablesmentioning

confidence: 99%

Fiber‐Type Solar Cells, Nanogenerators, Batteries, and Supercapacitors for Wearable Applications

et al. 2018

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Wearable electronic devices represent a paradigm change in consumer electronics, on‐body sensing, artificial skins, and wearable communication and entertainment. Because all these electronic devices require energy to operate, wearable energy systems are an integral part of wearable devices. Essentially, the electrodes and other components present in these energy devices should be mechanically strong, flexible, lightweight, and comfortable to the user. Presented here is a critical review of those materials and devices developed for energy conversion and storage applications with an objective to be used in wearable devices. The focus is mainly on the advances made in the field of solar cells, triboelectric generators, Li‐ion batteries, and supercapacitors for wearable device development. As these devices need to be attached/integrated with the fabric, the discussion is limited to devices made in the form of ribbons, filaments, and fibers. Some of the important challenges and future directions to be pursued are also highlighted.

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Materials interface engineering for solution-processed photovoltaics

Cited by 1,040 publications

References 93 publications

Molecular interfaces for plasmonic hot electron photovoltaics

Molecular interfaces for plasmonic hot electron photovoltaics

Towards efficient photoinduced charge separation in carbon nanodots and TiO₂ composites in the visible region

Fiber‐Type Solar Cells, Nanogenerators, Batteries, and Supercapacitors for Wearable Applications

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