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High sensitive CVD graphene-based gas sensors operating under environmental conditions

Ricciardella, F. (author), Vollebregt, S. (author), Polichetti, T. (author), Alfano, B. (author), Massera, E. (author), Sarro, Pasqualina M (author)

abstract 2017

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Low Temperature CVD Grown Graphene for Highly Selective Gas Sensors Working under Ambient Conditions

Ricciardella, F. (author), Vollebregt, S. (author), Polichetti, T. (author), Alfano, B. (author), Massera, E. (author), Sarro, Pasqualina M (author)

In this paper we report on gas sensors based on graphene grown by Chemical Vapor Deposition at 850 °C. Mo was used as catalyst for graphene nucleation. Resistors were directly designed on pre-patterned Mo using the transfer-free process we recently developed, thus avoiding films damage during the transfer to the target substrate. Devices...

conference paper 2017

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High sensitive gas sensors realized by a transfer-free process of CVD graphene

Ricciardella, F. (author), Vollebregt, S. (author), Polichetti, T (author), Alfano, B. (author), Massera, E. (author), Sarro, Pasqualina M (author)

The work herein presented investigates the behavior of graphene-based gas sensors realized by using an innovative way to prepare graphene. The sensing layer was directly grown by chemical vapor deposition on pre-patterned CMOS compatible Mo catalyst and then it was eased on the underlying SiO2 through a completely transfer-free process. Devices...

conference paper 2016

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A transfer-free wafer-scale CVD graphene fabrication process for MEMS/NEMS sensors

Vollebregt, S. (author), Alfano, B. (author), Ricciardella, F. (author), Giesbers, A.J.M. (author), Hagendoorn, Y. (author), van Zeijl, H.W. (author), Polichetti, T (author), Sarro, Pasqualina M (author)

In this paper we report a novel transfer-free graphene fabrication process, which does not damage the graphene layer. Uniform graphene layers on 4" silicon wafers were deposited by chemical vapor deposition using the CMOS compatible Mo catalyst. Removal of the Mo layer after graphene deposition results in a transfer-free and controlled placement...

conference paper 2016

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An innovative approach to overcome saturation and recovery issues of CVD graphene-based gas sensors

Ricciardella, F. (author), Vollebregt, S. (author), Polichetti, Tiziana (author), Alfano, B. (author), Massera, E. (author), Sarro, Pasqualina M (author)

<br/>In this work, we present an innovative method which enables to solve fundamental limitations affecting graphene-based chemi-sensors operating under environmental conditions, namely the lack of signal saturation and the scarce recovery after the detection step. The method, which exploits the differential current instead of the current itself...

conference paper 2017

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Social network-epistemology

Alfano, M.R. (author), Cunningham, S. (author), Meulemans, W. (author), Rutter, I. (author), Sondag, M. (author), Speckmann, B. (author), Sullivan, Emily (author)

conference paper 2018

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Toward an ethics of digital government: A first discussion

Domanski, Rob (author), Estevez, Elsa (author), Styrin, Evgeny (author), Alfano, M.R. (author), Harrison, Teresa M. (author)

In this panel, scholars discuss involving data, computational analysis, and information technology that hasthe potential to present ethical quandaries in the course of decision making related to digital government. More specifically, the presentations focus on algorithm-based decision making, personally identifiable information, and the...

conference paper 2018

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Ethics, morality, and game theory

Alfano, M.R. (author), Rusch, Hannes (author), Uhl, Matthias (author)

Ethics is a field in which the gap between words and actions looms large. Game theory and the empirical methods it inspires look at behavior instead of the lip service people sometimes pay to norms. We believe that this special issue comprises several illustrations of the fruitful application of this approach to ethics.

contribution to periodical 2018

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Motivated Numeracy and Active Reasoning in a Western European Sample

Connor, Paul (author), Sullivan, Emily (author), Tintarev, N. (author), Alfano, Mark (author), Sullivan, Emily (author)

Recent work by Kahan et al. (2017) on the psychology of motivated numeracy in the context of intracultural disagreement suggests that people are less likely to employ their capabilities when the evidence runs contrary to their political ideology. This research has so far been carried out primarily in the USA regarding the liberal–conservative...

journal article 2020

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Having a Sense of Humor as a Virtue

Alfano, Mark (author), Astola, M. (author), Urbanowicz, Paula (author)

journal article 2022

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Identifying Virtues and Values Through Obituary Data-Mining

Alfano, M.R. (author), Higgins, Andrew (author), Levernier, Jacob (author)

journal article 2017

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How one becomes what one is called: on the relation between traits and trait-terms in Nietzsche

Alfano, M (author)

According to Nietzsche, drives are the ultimate constituents of virtues and vices. I argue that Nietzsche identifies two blueprints for character construction: a slavish, interpersonal blueprint, and a masterly, reflexive blueprint. When the interpersonal blueprint is implemented, a person becomes what he is called: his drives are shaped by the...

journal article 2015

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Development and validation of a multi-dimensional measure of intellectual humility

Alfano, M.R. (author), Iurino, Kathryn (author), Stey, Paul (author), Robinson, Brian (author), Christen, Markus (author), Yu, Feng (author), Lapsley, Daniel (author)

This paper presents five studies on the development and validation of a scale of intellectual humility. This scale captures cognitive, affective, behavioral, and motivational components of the construct that have been identified by various philosophers in their conceptual analyses of intellectual humility. We find that intellectual humility has...

journal article 2017

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Gossip as a Burdened Virtue

Alfano, M.R. (author), Robinson, Brian (author)

Gossip is often serious business, not idle chitchat. Gossip allows those oppressed to privately name their oppressors as a warning to others. Of course, gossip can be in error. The speaker may be lying or merely have lacked sufficient evidence. Bias can also make those who hear the gossip more or less likely to believe the gossip. By...

journal article 2017

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CVD transfer-free graphene for sensing applications

Schiattarella, Chiara (author), Vollebregt, S. (author), Polichetti, Tiziana (author), Alfano, Brigida (author), Massera, Ettore (author), Miglietta, Maria L. (author), Di Francia, Girolamo (author), Sarro, Pasqualina M (author)

The sp² carbon-based allotropes have been extensively exploited for the realization of gas sensors in the recent years because of their high conductivity and large specific surface area. A study on graphene that was synthetized by means of a novel transfer-free fabrication approach and is employed as sensing material is herein...

journal article 2017

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I Know You Are, But What Am I?: Anti-Individualism in the Development of Intellectual Humility and Wu-Wei

Robinson, Brian (author), Alfano, M.R. (author)

Virtues are acquirable, so if intellectual humility is a virtue, it’s acquirable. But there is something deeply problematic—perhaps even paradoxical—about aiming to be intellectually humble. Drawing on Edward Slingerland’s analysis of the paradoxical virtue of wu-wei in Trying Not To Try, we argue for an anti-individualistic conception of the...

journal article 2016

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Response to Open Peer Commentaries on "Placebo Effects and Informed Consent"

Alfano, M.R. (author)

journal article 2015

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Effects of graphene defects on gas sensing properties towards NO 2 detection

Ricciardella, F. (author), Vollebregt, S. (author), Polichetti, Tiziana (author), Miscuglio, Mario (author), Alfano, Brigida (author), Miglietta, Maria L (author), Massera, Ettore (author), Di Francia, Girolamo (author), Sarro, Pasqualina M (author)

The crystal structure of graphene flakes is expected to significantly affect their sensing properties. Here we report an experimental investigation on the crystalline structure of graphene aimed at exploring the effects on the gas sensing properties. The morphology of graphene, prepared via Chemical Vapor Deposition (CVD), Liquid Phase...

journal article 2017

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Analysis of a calibration method for non-stationary CVD multi-layered graphene-based gas sensors

Ricciardella, F. (author), Polichetti, Tiziana (author), Vollebregt, S. (author), Alfano, Brigida (author), Massera, Ettore (author), Sarro, Pasqualina M (author)

Limitations such as lack of detected stationary signal and slow signal recovery after detection currently affect graphene-based chemi-sensors operating at room temperature. In this work, we model the behavior of a sensor in a test chamber having limited volume and simulating the environmental conditions. From this model, we mathematically derive...

journal article 2019

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The Role of Art in Emotional-Moral Reflection on Risky and Controversial Technologies: the Case of BNCI

Roeser, S. (author), Alfano, V.R. (author), Nevejan, Caroline (author)

In this article, we explore the role that art can play in ethical reflection on risky and controversial technologies. New technologies often give rise to societal controversies about their potential risks and benefits. Over the last decades, social scientists, psychologists, and philosophers have criticized quantitative approaches to risk on...

journal article 2018