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Charge Carrier Dynamics in Organometal Halide Perovskite Probed by Time-Resolved Electrical Measurements (Book chapter)

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ISBN: 9789535122456 Year: DOI: 10.5772/61631 Language: English
Publisher: IntechOpen Grant: FP7 Ideas: European Research Council - 226136
Subject: Science (General)
Added to DOAB on : 2019-01-17 11:48:00
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This chapter presents the fate of the charge carriers from the moment of its photogeneration in the perovskite to injection and transport into electrodes. Time-resolved electrical measurement techniques, terahertz (THz) spectroscopy and microwave (MW) conductivity, are primarily used to deconvolute ultrafast processes and to directly access behavior of charged species from the ps to µs timescales. Transient absorption and photoluminescence spectroscopy were also utilized to gain insight on carrier population dynamics and radiatively recombining charges. Photogenerated charged species were converted into highly mobile charges (µe = 12.5 cm2V-1s-1 and µh = 7.5 cm2V-1s-1) almost instantaneously (< 0.2 ps), while the remaining loosely bounded excitons dissociate into mobile charges after 2-3 ps. This high mobility is maintained for at least 1 ns as obtained by THz spectroscopy, while its lifetime is at least few tens of µs as measured by the MW conductivity technique. Lowering the temperature increases carrier mobilities with T-1.6.Dependence and a 75 meV barrier energy is required for temperature-activated recombination. Finally, injection of hole from MAPbI3 to Spiro-OMeTAD was found to be ultrafast and the state and population of dark holes dictate its recombination.

Wheeled Mobility Biomechanics

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889199389 Year: Pages: 91 DOI: 10.3389/978-2-88919-938-9 Language: English
Publisher: Frontiers Media SA
Subject: General and Civil Engineering --- Biotechnology
Added to DOAB on : 2016-01-19 14:05:46
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For the manual wheelchair (MWC) user, loss of lower extremity function often places the burden for mobility and activities of daily living on the upper extremities. This e-book on Wheeled Mobility Biomechanics contains current research that provides insights into the mechanical demands and performance techniques during tasks associated with MWC. Our intent was to contribute to advancing the knowledge regarding the variables that promote or hinder an individual’s capacity to handle the daily manual wheeled mobility demands and gain greater insights into upper extremity loading consequences, predictors of pain onset and injury, and ultimately identify strategies for preserving health and functional mobility for the MWC user.

Musicians' Mobilities and Music Migrations in Early Modern Europe

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Book Series: Mainzer Historische Kulturwissenschaften ISBN: 9783837635041 9783839435045 Year: Language: English
Publisher: transcript Verlag Grant: Knowledge Unlatched - 101258
Subject: History
Added to DOAB on : 2018-03-16 11:02:30
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During the 17th and 18th century musicians' mobilities and migrations are essential for the European music history and the cultural exchange of music. Adopting viewpoints that reflect different methodological approaches and diversified research cultures, the book presents studies on central scopes, strategies and artistic outcomes of mobile and migratory musicians as well as on the transfer of music. By looking at elite and non-elite musicians and their everyday mobilities to major and minor centers of music production and practice, new biographical patterns and new stylistic paradigms in the European East, West and South emerge.

Cross-border Mobility for Electric Vehicles: Selected results from one of the first cross-border field tests in Europe

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ISBN: 9783731504924 Year: Pages: XVII, 207 p. DOI: 10.5445/KSP/1000052445 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:58
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This book provides selected results from the accompanying research of the project CROME. The vision of the project was to create and test a safe, seamless, user-friendly and reliable mobility with electric vehicles between France and Germany as a prefiguration of a pan-European electric mobility system. Major aims were contributions to the European standardisation process of charging infrastructure for electric mobility and corresponding services, and to provide an early customer feedback.

Planning the Charging Infrastructure for Electric Vehicles in Cities and Regions

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ISBN: 9783731505013 Year: Pages: XXVII, 498 p. DOI: 10.5445/KSP/1000053253 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: General and Civil Engineering
Added to DOAB on : 2019-07-30 20:02:00
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Planning the charging infrastructure for electric vehicles (EVs) is a new challenging task. This book treats all involved aspects: charging technologies and norms, interactions with the electricity system, electrical installation, demand for charging infrastructure, economics of public infrastructure provision, policies in Germany and the EU, external effects, stakeholder cooperation, spatial planning on the regional and street level, operation and maintenance, and long term spatial planning.

The Role of Play in Children’s Health and Development

ISBN: 9783038421818 9783038421825 Year: Volume: 1st Pages: 200 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2016-05-12 11:40:05
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Two-Dimensional Electronics - Prospects and Challenges

ISBN: 9783038422495 9783038422501 Year: Pages: XVI, 248 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Electrical and Nuclear Engineering
Added to DOAB on : 2016-09-02 17:56:27
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During the past 10 years, two-dimensional materials have found incredible attention in the scientific community. The first two-dimensional material studied in detail was graphene, and many groups explored its potential for electronic applications. Meanwhile, researchers have extended their work to two-dimensional materials beyond graphene. At present, several hundred of these materials are known and part of them is considered to be useful for electronic applications. Rapid progress has been made in research concerning two-dimensional electronics, and a variety of transistors of different two-dimensional materials, including graphene, transition metal dichalcogenides, e.g., MoS2 and WS2, and phosphorene, have been reported. Other areas where two-dimensional materials are considered promising are sensors, transparent electrodes, or displays, to name just a few. This Special Issue of Electronics is devoted to all aspects of two-dimensional materials for electronic applications, including material preparation and analysis, device fabrication and characterization, device physics, modeling and simulation, and circuits. The devices of interest include, but are not limited to transistors (both field-effect transistors and alternative transistor concepts), sensors, optoelectronics devices, MEMS and NEMS, and displays.

American Mobilities

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Book Series: American Culture Studies ISBN: 9783837634556 9783839434550 Year: Language: English
Publisher: transcript Verlag Grant: Knowledge Unlatched - 101244
Subject: Social Sciences
Added to DOAB on : 2018-03-16 11:02:30
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American Mobilities investigates representations of mobility – social, economic, geographic – in American film and literature during the Depression, WWII, and the early Cold War. With an emphasis on the dual meaning of »domestic«, referring to both the family home and the nation, this study traces the important trope of mobility that runs through the »American« century. Juxtaposing canonical fiction with popular, and low-budget independent films with Classical Hollywood, Leyda brings the analytic tools of American cultural and literary studies to bear on an eclectic array of primary texts as she builds a case for the significance of mobility in the study of the United States.

Unterwegs – Mobiles Leben in der Erdgas- und Erdölindustrie in Russlands Arktis

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ISBN: 9783205796947 Year: Pages: 227 DOI: 10.26530/oapen_594630 Language: English
Publisher: Böhlau Grant: Austrian Science Fund - PUB 238
Subject: Economics
Added to DOAB on : 2016-01-31 11:01:13
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Barely known in public is the life of long-distance commute workers who extract the „blue and black gold” for the export to Europe. They are travelling people who work and live rotationally for a few weeks at the extraction sites before they go back again to their families in the southern regions. This ethnography takes the reader from the Volga Region to the Arcitc “Russian Gas Capital” Novy Urengoy and provides critically insights into the Russian petroleum industry.

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