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Article
Publication date: 19 June 2019

Kasif Teker, Yassir A. Ali and Ali Uzun

This study aims to investigate photosensing characteristics of SiC and GaN nanowire-based devices through exposure to UV light. The photocurrent transients have been modeled to…

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Abstract

Purpose

This study aims to investigate photosensing characteristics of SiC and GaN nanowire-based devices through exposure to UV light. The photocurrent transients have been modeled to determine rise and decay process time constants. The 1D-semiconductor nanowires can exhibit higher light sensitivity compared to bulk materials because of their large surface area to volume ratio and the quantum size effects.

Design/methodology/approach

Nanowire devices have been fabricated through dielectrophoresis for integrating nanowires onto pre-patterned electrodes (10 nm Ti/ 90 nm Au) with a spacing about 3 µm onto SiO2/Si (doped) substrate. The photocurrent measurements were carried out under room temperature conditions with UV light of 254 nm wavelength.

Findings

SiCNWs yield very short rise and decay time constants of 1.3 and 2.35 s, respectively. This fast response indicates an enhanced surface recombination of photoexcited electron-hole pairs. Conversely, GaNNWs yield longer rise and decay time constants of 10.3 and 15.4 s, respectively. This persistent photocurrent suggests a reduced surface recombination process for the GaNNWs.

Originality/value

High selective UV light sensitivity, small size, very short response time, low power consumption and high efficiency are the most important features of nanowire-based devices for new and superior applications in photodetectors, photovoltaics, optical switches, image sensors and biological and chemical sensing.

Article
Publication date: 27 July 2021

Shahzad Akhtar, Haroon Hussain and Rana Yassir Hussain

This study aims to estimate the regulatory compliance impact on the risk of banks operating in Pakistan. The direct and indirect regulatory compliance of conventional banks with…

Abstract

Purpose

This study aims to estimate the regulatory compliance impact on the risk of banks operating in Pakistan. The direct and indirect regulatory compliance of conventional banks with Islamic operations in terms of risk from 2009 to 2017 are estimated.

Design/methodology/approach

This study used a two-step system generalized method of moment (GMM) (dynamic panel) to examine the relationship between regulatory compliance, Islamic operations and the bank risk and tested the direct and indirect impacts of regulatory compliance and Islamic operations on the said risk.

Findings

Regulatory compliance has a significant and positive relation with bank risk, whereas the Islamic bank operations have a significant and negative relationship. Thus, regulatory compliance creates pressure on banks, but the Islamic operations of conventional banks reduce this pressure in direct and indirect ways.

Practical implications

Per the policy of State Bank of Pakistan (SBP), banks shall pursue Islamic operations to reduce regulatory pressure and widen their scope. The results suggest that regulatory compliance creates pressure on bank risk irrespective of the type of the bank. Thus, the SBP should seek the appropriate measure for this occurrence.

Originality/value

To the best of the authors’ knowledge, this work is the very first study that has considered the unique Islamic operations of conventional banks and estimated its impact on risk. Moreover, this work examined two types of bank risk instead of employing stability and market measure. This research is also the first to implement a two-step system GMM for the methodology.

Details

Nankai Business Review International, vol. 12 no. 4
Type: Research Article
ISSN: 2040-8749

Keywords

Article
Publication date: 28 May 2021

Raphael Nagel and Carmen Aviles

In the past decade, the development of the global economy, the change in organizational structures and the maturing of new technologies have led to considerable changes in…

Abstract

Purpose

In the past decade, the development of the global economy, the change in organizational structures and the maturing of new technologies have led to considerable changes in business structures. Emergency situations, such as the recent COVID-19 pandemic, have led many companies to declare bankruptcy. In this context, the present study aims to analyze strategic opinions of company executives in a declaration of bankruptcy.

Design/methodology/approach

To this end, an innovative approach is applied to strategic management and business. First, the authors conducted 14 interviews with executives, and the interview data were transcribed. Second, using textual analysis and data mining techniques, the transcripts were analyzed to understand the importance of indicators identified as relevant in companies in a declaration of bankruptcy.

Findings

This resulted in identification of 10 relevant indicators perceived by executives to avoid or anticipate a state of bankruptcy, including innovation, business adaptability, room for improvement in production processes, time to react to situations of alarm, layoffs, support from public institutions, suppliers, international and national regulations, impact on the industry, credits and debts.

Originality/value

The paper concludes with a discussion of important theoretical and practical implications of these findings for the industry. Also, strategic management decision-making strategies are presented as a result of the innovative textual analysis approach used.

Details

Journal of Indian Business Research, vol. 13 no. 3
Type: Research Article
ISSN: 1755-4195

Keywords

Article
Publication date: 5 December 2018

Robert Wentrup, H. Richard Nakamura and Patrik Ström

Using the lens of Uber’s digital workers in Paris, the purpose of this paper is to investigate how the trust-building mechanism is constructed between a digital platform and its…

3040

Abstract

Purpose

Using the lens of Uber’s digital workers in Paris, the purpose of this paper is to investigate how the trust-building mechanism is constructed between a digital platform and its digital workers in a foreign market entry.

Design/methodology/approach

This is a case study based on empirical data from in-depth interviews with 35 Uber drivers. A cross-disciplinary literature framework from mainly international business and internet geography theory and a reflexive qualitative methodology are applied.

Findings

Results show that the relationship between the digital platform and the digital workers is characterized by mistrust and suffers from decreasing commitment levels soon after market entry. Uber mitigates its mistrust via control and scarce mechanisms. The digital drivers’ “illusionary freedom”, a state in which they feel they can log on and log off at any time, enables the digital platform to gradually lower its commitment. The authors find that the mistrust does not seem to hamper the digital platform’s business performance.

Research limitations/implications

The paper mainly covers the digital workers’ perspective and the case of Uber’s market entry in Paris.

Social implications

This paper implies that digitally conveyed control seems to come at the cost of lowered human trust. Given the pace at which digital control systems are permeating society, this could eventually lower the whole societal trust level.

Originality/value

The authors criticize incumbent international business theory for not being sufficiently able to explain a contemporary digital business logic and the authors challenge the general assumption that successful internationalization is built through trust. The authors contribute with the conceptualization of a new technical market entry mode for digital platforms – “digitally controlled proxies”.

Details

critical perspectives on international business, vol. 15 no. 1
Type: Research Article
ISSN: 1742-2043

Keywords

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