111,802 research outputs found
Porous silicon solar cells
No full textWe developed a new process for the fabrication of crystalline solar cell, based on an ultrathin silicon membrane, taking advantage of porous silicon technology. The suggested architecture allows the costs reduction of silicon based solar cell reusing the same wafer to produce a great number of membranes. The architectures combines the efficiency of crystalline silicon solar cell, with the great absorption of porous silicon, and with a more efficient way to use the material. The new process faces the main challenge to achieve an effective and not expensive passivation of the porous silicon surface, in order to achieve an efficient photovoltaic device. At the same time the process suggests a smart way to selective doping of the macroporous silicon layers despite the through-going pores. © 2015 IEEE.
SciVal Topic Prominence
Topic: Porous silicon | Silicon | macroporous silicon
Prominence percentile: 66.984
Author keywords
nanofabricationporous siliconsilicon nanoelectronicssolar cells
Indexed keywords
Engineering controlled terms:
Crystalline materialsNanoelectronicsNanostructured materialsNanotechnologyPorous siliconSiliconSilicon wafersSolar cells
Engineering uncontrolled terms
Crystalline silicon solar cellsCrystalline solar cellsMacro porous siliconPhotovoltaic devicesPorous silicon surfacesPorous silicon technologySilicon nanoelectronicsUltrathin silicon membrane
Engineering main heading:
Silicon solar cells
ISBN: 978-146738155-0
Source Type: Conference Proceeding
Original language: English
DOI: 10.1109/NANO.2015.7388710
Document Type: Conference Paper
Sponsors: Nanotechnology Council
Publisher: Institute of Electrical and Electronics Engineers Inc.
References (9)
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1
(2012) International Technology Roadmap for Photovoltaics Results 2012. Cited 24 times.
ITRPV, Third Edition, Berlin 2012
www.ITRPV.net
2
Lehmann, V., Honlein, W., Stengl, R., Willer, J., Wendt, H.
(1992) Verfahren Zur Herstellung Einer Solarzelle Aus Einer Substratscheibe. Cited 6 times.
German patent DE4204455C1; Filing date: 29. 01.
3
Brendel, R., Ernst, M.
Macroporous Si as an absorber for thin-film solar cells
(2010) Physica Status Solidi - Rapid Research Letters, 4 (1-2), pp. 40-42. Cited 22 times.
http://www3.interscience.wiley.com/cgi-bin/fulltext/123215552/PDFSTART
doi: 10.1002/pssr.200903372
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4
Ernst, M., Brendel, R., Ferré, R., Harder, N.-P.
Thin macroporous silicon heterojunction solar cells
(2012) Physica Status Solidi - Rapid Research Letters, 6 (5), pp. 187-189. Cited 16 times.
doi: 10.1002/pssr.201206113
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5
Ernst, M., Brendel, R.
Macroporous silicon solar cells with an epitaxial emitter
(2013) IEEE Journal of Photovoltaics, 3 (2), art. no. 6472253, pp. 723-729. Cited 7 times.
doi: 10.1109/JPHOTOV.2013.2247094
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6
Ernst, M., Schulte-Huxel, H., Niepelt, R., Kajari-Schröder, S., Brendel, R.
Thin crystalline macroporous silicon solar cells with ion implanted emitter (Open Access)
(2013) Energy Procedia, 38, pp. 910-918. Cited 2 times.
http://www.sciencedirect.com/science/journal/18766102
doi: 10.1016/j.egypro.2013.07.364
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7
Nenzi, P., Kholostov, K., Crescenzi, R., Bondarenka, H., Bondarenko, V., Balucani, M.
Electrochemically etched TSV for porous silicon interposer technologies
(2013) Proceedings - Electronic Components and Technology Conference, art. no. 6575887, pp. 2201-2207. Cited 2 times.
ISBN: 978-147990233-0
doi: 10.1109/ECTC.2013.6575887
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8
Perticaroli, S., Varlamava, V., Palma, F.
Microwave sensing of nanostructured semiconductor surfaces
(2014) Applied Physics Letters, 104 (1), art. no. 013110. Cited 3 times.
doi: 10.1063/1.4861424
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9
De Cesare, G., Caputo, D., Tucci, M.
Electrical properties of ITO/crystalline-silicon contact at different deposition temperatures
(2012) IEEE Electron Device Letters, 33 (3), art. no. 6142006, pp. 327-329. Cited 28 times.
doi: 10.1109/LED.2011.2180356
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RELX Group
We developed a new process for the fabrication of crystalline solar cell, based on an ultrathin silicon membrane, taking advantage of porous silicon technology. The suggested architecture allows the costs reduction of silicon based solar cell reusing the same wafer to produce a great number of membranes. The architectures combines the efficiency of crystalline silicon solar cell, with the great absorption of porous silicon, and with a more efficient way to use the material. The new process faces the main challenge to achieve an effective and not expensive passivation of the porous silicon surface, in order to achieve an efficient photovoltaic device. At the same time the process suggests a smart way to selective doping of the macroporous silicon layers despite the through-going pores
Developments of the pinned photodiode terahertz rectifier
No full textThis paper presents we presents a development of the structure of the pinned photodiode terahertz rectifier, in which the metal whisker of the antenna is separated from the semiconductor by a silane oxide layer, in order to reduce the surface defectiveness. The rectifies is the basic component of an image detection system based on the structure of actual CMOS image detectors. The structure combines a nano-antenna, fabricated on the top of a standard image sensor, the rectifier, and the readout electronics. The rectifier device proposed has vertical extension of some tenths of nanometers, can be created at the foot of the nano-whisker at the end of the terahertz antenna, above the storage well
Rf rectifier toward terahertz integrated image detector
No full textWe present a new CMOS compatible direct conversion terahertz detector operating at room temperature. The rectenna consists of an integrated antenna, realized on the surface of the integrated circuit and connected to a nanometric metallic whisker at one of its edges. The whisker reaches the semiconductor substrate that constitutes the antenna ground plane. The rectifying device can be obtained introducing some simple modifications of the charge storage well in conventional CMOS APS devices, making the proposed solution easy to integrate with existing imaging systems. No need of scaling toward very scaled and costly technological node is required, since the CMOS only provides the necessary integrated readout electronics. On-wafer measurements of RF characteristics of the designed rectifying junction are reported and discussed
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Využití sociálních médií v B2B prodeji
No full textTato diplomová práce se zabývá tím, jak mohou B2B obchodníci využívat sociální média v prodeji. Na základě systematické rešerše literatury, autor zjistil, že akademici, zkoumající danou problematiku, navrhují další výzkum, a to: v kterých konkrétních krocích se dají využít sociální média v prodeji (Salo, 2017). Autor se na základě toho rozhodl zjistit, jaké sociální sítě, různé technologie a pluginy se dají využít v B2B prodeji - tzv. social sellingu. Social selling se v této práci týká primárně procesu akvizice a okrajově péčí o stávající zákazníky. Autor si vybral kvalitativní průzkum pomocí 10 hloubkových polo-strukturovaných rozhovorů, aby odhalil jak, která sociální média to jsou, tak i motivaci prodejců, proč tato média používat/nepoužívat. Aby autor dodržel správnost vyhodnocení výsledků, data byla analyzována pomocí Tématické analýzy, která v této studii vykrystalizovala 2 hlavní strategické přístupy v social sellingu. Tyto přístupy (tzv. Push a Pull strategie) obsahují praktické příklady a konkrétní aktivity, které mohou prodejci využívat v každodenní praxi. Tyto výsledky jsou prezentovány s důrazem na praktičnost a jednoduchost implementace. Tvoří proto hlavní přínos autorovo výzkumu. V poslední části autor zmiňuje výzvy a manažerská doporučení, které mohou obchodníci využít v každodenním pracovním životě.This diploma thesis focuses on social media usage in B2B sales. Based on the systematic literature review conducted by the author, he has found out that recent researchers (Salo, 2017) suggest further research in the area of how and in which sales phase should various social networking sites, technologies and plugins used. To further fill this research gap, author decided to identify these social media and their usage among B2B salespeople in the so-called social selling process. The social selling process in this thesis applies mainly to acquiring new prospects and tangentially to taking care of existing clients (follow-up step). Author has chosen a qualitative research method via conducting 10 in-depth semi-structured interviews to reveal these instruments as well as motivation of a sales person on why to use social media in the selling process. The collected data was analyzed using Thematic analysis to ensure the right procedure and to identify main themes which crystalized into 2 main strategic approaches in social selling. These approaches (Push and Pull) include practical examples of concrete activities which sales people can use in their daily jobs and are presented with focus on practicality and ease of implementation. These also form the main contribution of author`s research. In the last part, author mentions challenges in social selling and recommended managerial implications for salesforce
TeX v jednoduchém unixovém prostředí
No full textsummary:Při ladění TeXového dokumentu potřebujeme mnohokrát opakovaně pouštět TeX, podívat se, jak dopadl výsledek v prohlížeči DVI nebo PDF souboru, mrknout na výpis TeXu na terminálu, podívat se případně do logu a celou činnost opakovat. V tomto článku je ukázáno, jak tuto práci dělá autor článku. Proces "editor-TeX-kuk" je zde podporován jednoduchými unixovými nástroji: bashovým skriptem texloop, který si autor pro tyto účely vytvořil, dále terminálem Xterm a jednoduchým editorem, který umí navázat na klávesovou zkratku spuštění příkazu v systému. Čtenář se zde může inspirovat a přizpůsobit tyto nástroje svým vlastním potřebám. V článku je popsána funkce skriptu texloop, dále je neformálně rozveden dlouholetý vývoj autorova vztahu k textovým editorům a konečně je zde uvedena konfigurace terminálu Xterm, aby vyhovoval českému prostředí jak v kódování ISO-8859-2, tak v kódování UTF-8. Pro kódování UTF-8 si v závěru článku vygenerujeme TeXový formát csplain.summary:By debugging a TeX document it is necessary many times repeatedly to run TeX, to look for the result in DVI or PDF file, to gander the TeX output on the terminal, or eventually to have a look in the log-file, and all that action to repeat. In the paper it is show, how this work is made by author. The process '‘'editor-TeX-look' is supported by simple Unix tools: bash script texloop, created by author for these purposes, Xterm terminal and a simple editor, which is able to link to the shortcut key the activation of a system command. The reader could be inspired with the solution and to adapt these tools to his/her own needs. In the paper the function of the texloop script is described, and further the longstanding evolution of the author's relation to text editors is informal elaborated and finally a configuration of Xterm terminal, suitable for the czech environment with both ISO-8859-2 and UTF-8 encoding is introduced. For UTF-8 encoding the TeX format csplain is generated at the end of the paper
Analýza perspektivy vedoucích prodeje na řízení pojišťovacích agentů v etnicky různorodých zastoupeních v Organizaci G, Malajsie.
No full textCílem této práce je odhalit klíčové faktory a výzvy spojené s řízením etnicky různorodého pojišťovacího zastoupení v oboru životního pojištění v Malajsii. Autor si klade za cíl zkoumat pohled vedoucích prodeje v Organizaci G v Malajsii na jejich způsob řízení agentů. Kombinované kvantitativní a kvalitativní metody budou použity prostřednictvím průzkumu a rozhovorů se 79 agenty a 12 vedoucími prodeje. Odpovědi budou analyzovány za účelem porozumění výzvám, kterým čelí vedoucí prodeje při řízení etnicky různorodého zastoupení, a zkoumat potenciální řešení. Autor navrhuje iniciativy a metody k posílení stylů vedení a zlepšení procesů pro udržení úspěšného zastoupení v kontextu etnické rozmanitosti.The goal of this thesis is to uncover the key factors and challenges in managing an ethnically diverse insurance agency in Malaysia's life insurance industry. The author aims to examine the sales managers' perspective in Organisation G, Malaysia, regarding their expression of managing their agents. Quantitative and qualitative methods will be employed through surveys and interviews among 79 agents and 12 sales managers. The responses will be analysed to understand the challenges sales managers face in managing a multi-ethnic agency and explore potential solutions. The author proposes initiatives and methods to enhance leadership styles and improve the processes for maintaining a successful agency in the context of multi-ethnicity
AUTHOR BOOK
No full textVytvořil jsem autorskou knihu o čtyřiceti stránkách s ilustracemi a minimem textu. Kniha je černobílá, dominuje v ní tušová kresba štětcem a perem. Kromě té je v knize ale i text, který slouží jako poetické doplnění ilustrací.
Obsah knihy se zaměřuje na úzký kruh přátel a zároveň vypovídá o autorovi jak vybranými motivy, situacemi tak linkou.
Vyznění knihy je spíše pocitové, má zanechat dojem, ne popisně vysvětlovat.ObhájenoI have created author book that has 40 pages with ilustrations and minimum of text. The book is black and white and contains ink drawings. There is also text poetically coresponding with pictures
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