Phototransistors Based on Nanofilms: Fabrication, Characterization and Application

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 9052

Special Issue Editor

School of Materials Science and Engineering, Pusan National University, Busan 46241, Korea
Interests: 2D material; semiconductor; sensor; flexible electronics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In current electronics systems, a phototransistor, a kind of device that realizes the functionality of light detection and signal magnification in a single device, is an essential optoelectronic integration component. Since William Shockley first proposed the concept of phototransistors in 1951, results with numerous types of materials and operating mechanisms have been reported. Furthermore, as vision-based machine learning technology becomes more important, interest in nanomaterials and devices that can sense images more accurately and efficiently is skyrocketing. In the flow of this science and these technologies, the aim of this Special Issue, entitled “Phototransistors Based on Nanofilms: Fabrication, Characterization, and Application” is to offer the latest cutting-edge research and development in the field. Research papers related to the synthesis, characterization of novel nanofilms, or nanocomposites and their practical applications are welcome in this Special Issue.

Dr. Seoung-ki Lee
Guest Editor

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Keywords

  • nanomaterial
  • heterostructure
  • optoelectronics
  • inorganic
  • organic semiconductor
  • bipolar junction
  • image sensor
  • machine learning
  • future electronics

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Published Papers (1 paper)

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Review

14 pages, 1738 KiB  
Review
Environmentally Compatible Lead-Free Perovskite Solar Cells and Their Potential as Light Harvesters in Energy Storage Systems
by Il Jeon, Kyusun Kim, Efat Jokar, Minjoon Park, Hyung-Woo Lee and Eric Wei-Guang Diau
Nanomaterials 2021, 11(8), 2066; https://doi.org/10.3390/nano11082066 - 15 Aug 2021
Cited by 21 | Viewed by 8542
Abstract
Next-generation renewable energy sources and perovskite solar cells have revolutionised photovoltaics research and the photovoltaic industry. However, the presence of toxic lead in perovskite solar cells hampers their commercialisation. Lead-free tin-based perovskite solar cells are a potential alternative solution to this problem; however, [...] Read more.
Next-generation renewable energy sources and perovskite solar cells have revolutionised photovoltaics research and the photovoltaic industry. However, the presence of toxic lead in perovskite solar cells hampers their commercialisation. Lead-free tin-based perovskite solar cells are a potential alternative solution to this problem; however, numerous technological issues must be addressed before the efficiency and stability of tin-based perovskite solar cells can match those of lead-based perovskite solar cells. This report summarizes the development of lead-free tin-based perovskite solar cells from their conception to the most recent improvements. Further, the methods by which the issue of the oxidation of tin perovskites has been resolved, thereby enhancing the device performance and stability, are discussed in chronological order. In addition, the potential of lead-free tin-based perovskite solar cells in energy storage systems, that is, when they are integrated with batteries, is examined. Finally, we propose a research direction for tin-based perovskite solar cells in the context of battery applications. Full article
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