Author(s): Ng, TK (Ng, Tien Khee); Yan, JC (Yan, Jianchang)
Source: JOURNAL OF NANOPHOTONICS Volume: 12 Issue: 4 Article Number: 043501 DOI: 10.1117/1.JNP.12.043501 Published: OCT 2018
Abstract: This guest editorial summarizes the JNP Special Section on Semiconductor UV Photonics.
The AlGaN-based ultra-wide bandgap semiconductor has entered the realm of relative maturity as evident in the foundry production of ultraviolet range light-emitting diodes (LEDs). These LEDs offer the significant advantage of having compact, small footprint features for a wide range of applications requiring the utility of ultraviolet emission spectrum. While this is encouraging, a multitude of scientific and technological challenges remain. The demonstration of devices operating in the full ultraviolet-spectrum necessitates the meticulous and painstaking epitaxy and process development in circumventing issues that are essentially related to crystal symmetry, polarization field, dopant activation efficiency, lattice-mismatch, epitaxy cracking, quantum efficiencies, and substrate considerations. Other classes of AlInGaN-based and ZnO-based photonic devices are equally demanding in the development of photonic elements, semiconductors and device physics. Various aspects of the above discussion were, to a large extent, covered by the collection of articles in the present special section. Hence, readers will benefit from the extensive results, knowledge, and the best practices in the existing technological advances, as reported in the collection of papers. Moreover, readers are urged to challenge the status-quo of the current methods and knowhow reported in the review articles, in their endeavors on fabricating photonic devices operating in the ultraviolet regime. Practical and innovative solutions that simplify the methods of fabrication and resolve the persistent challenges in ultraviolet-spectrum devices, as mentioned above, are still required. This special section hopes to further elicit thoughts from the semiconductor, optoelectronics, and photonics community for crystallizing creative solutions in making better devices.
全文链接：https://www.spiedigitallibrary.org/journals/journal-of-nanophotonics/volume-12/issue-4/043501/Special-Section-Guest-Editorial-Semiconductor-UV-Photonics/10.1117/1.JNP.12.043501.full