Browsing by Author "Wijesinghe, DPS"

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    Fabrication and characterization of cu2znsns4 thin films by spin coating
    (Engineering Research Unit, Faculty of Engiennring, University of Moratuwa, 2016-04) Wijewantha, NLW; Wijesinghe, DPS; Attygalle, D; Jayasekara, AGBP; Amarasinghe, YWR
    This study reports the fabrication and characterization of Cu2ZnSnS4 (CZTS) thin films which is inexpensive and environmental friendly photovoltaic (PV) material using solution based method. The CZTS thin films were coated on soda lime glass substrates using spray pyrolysis and spin coating methods. The thickness variation, electrical properties and optical properties of the films were determined for different numbers of coatings. The optical band gap energy of the prepared films was within the range of 1.5eV to 2.07eV. A set of prepared CZTS films on glass substrates were subjected to an annealing process in a normal atmospheric environment to obtain better crystalline properties [2]
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    item: Conference-Full-text
    Start-up stories of techno-entrepreneurial engineers in Sri Lanka
    (2020-10-27) Wijesinghe, DPS; Jayawardane, VPT; Dasanayaka, SWSB
    Entrepreneurial engineers can be considered as valuable human resources which contribute immensely to the economic growth and development of any country. Hence, wider attention has been given to promote entrepreneurship among professional engineers in many countries. In general, billion-dollar technology-related businesses have been found and managed by innovative engineers in the international context. Although not in the billion-dollar capacity, there are still a lot of successful techno-entrepreneurial engineers in Sri Lanka whose start-up stories have not yet been revealed to the general public in the form of an academic study. This research paper investigates the motivation and challenges faced by such engineers in Sri Lankan context during the start-up phase of their firms as a part of an ongoing study based on the grounded theory approach. Data were collected by conducting face to face interviews with purposively selected eight techno-entrepreneurial engineers. Verbatim transcriptions of the audio records of the interviews were analyzed by following techniques of the grounded theory approach. It reveals that lack of experience, finance, and social issues were the major challenges they faced during the start-up stages. The findings of this study can be used at the policy level to create a favourable eco-environment for budding entrepreneurial engineers to successfully exploit their innovative ideas and products into businesses in the Sri Lankan context.
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    Technology entrepreneurship in Sri Lanka – way forward
    (Business Research Unit (BRU), 2022-12-01) Wijesinghe, DPS; Jayawardane, VPT; Dasanayaka, SWSB
    Technology entrepreneurship is rapidly gaining attention in the business field with the developments in various technologies worldwide. Innovative-minded people have started business firms to deliver technology products and services as technology entrepreneurs. Business-minded engineers are foremost among them. Although numerous studies are conducted worldwide focusing on technology entrepreneurship as an emerging field of study in entrepreneurship, the Sri Lankan context lacks such studies due to the emerging nature of techno-entrepreneurship within the country. With the hope of expanding the existing knowledge base of technology entrepreneurship in Sri Lanka, this study was conducted to gather the business advice of established techno-entrepreneurial engineers, which can be used to guide emerging techno-entrepreneurs to success. This study was conducted qualitatively by holding face-to-face interviews with a purposively selected sample of twenty-two entrepreneurial engineers in Sri Lanka. Voice-recorded interviews were transcribed verbatim and analyzed employing the inductive thematic method with the assistance of NVivo software. Four key themes emerged from the data as advice for emerging techno-entrepreneurs: accept challenges and work hard, be an expert, be ethical, and work for satisfaction. The above findings can benefit emerging and prospective technology entrepreneurs in Sri Lanka to make their entrepreneurial journey successful and sustainable, eventually contributing to the country's economic development.