2019年JOS入选“中国科技期刊卓越行动计划”
2020年11月JOS被EI数据库收录
Review Articles
  • Avalanche photodiodes on silicon photonics

    Yuan Yuan, Bassem Tossoun, Zhihong Huang, Xiaoge Zeng, Geza Kurczveil, Marco Fiorentino, Di Liang, Raymond G. Beausoleil

    J. Semicond. 

    doi: 10.1088/1674-4926/43/2/021301

    Abstract Full Text PDF Get Citation

    Silicon photonics technology has drawn significant interest due to its potential for compact and high-performance photonic integrated circuits. The Ge- or III–V material-based avalanche photodiodes integrated on silicon photonics provide ideal high sensitivity optical receivers for telecommunication wavelengths. Herein, the last advances of monolithic and heterogeneous avalanche photodiodes on silicon are reviewed, including different device structures and semiconductor systems.

  • Recent development in electronic structure tuning of graphitic carbon nitride for highly efficient photocatalysis

    Chao Li, Jie Li, Yanbin Huang, Jun Liu, Mengmeng Ma, Kong Liu, Chao Zhao, Zhijie Wang, Shengchun Qu, Lei Zhang, Haiyan Han, Wenshuang Deng, Zhanguo Wang

    J. Semicond. 

    doi: 10.1088/1674-4926/43/2/021701

    Abstract Full Text PDF Get Citation

    The utilization of solar energy to drive energy conversion and simultaneously realize pollutant degradation via photocatalysis is one of most promising strategies to resolve the global energy and environment issues. During the past decade, graphite carbon nitride (g-C3N4) has attracted dramatically growing attention for solar energy conversion due to its excellent physicochemical properties as a photocatalyst. However, its practical application is still impeded by several limitations and shortcomings, such as high recombination rate of charge carriers, low visible-light absorption, etc. As an effective solution, the electronic structure tuning of g-C3N4 has been widely adopted. In this context, firstly, the paper critically focuses on the different strategies of electronic structure tuning of g-C3N4 like vacancy modification, doping, crystallinity modulation and synthesis of a new molecular structure. And the recent progress is reviewed. Finally, the challenges and future trends are summarized.

  • Twist-angle two-dimensional superlattices and their application in (opto)electronics

    Kaiyao Xin, Xingang Wang, Kasper Grove-Rasmussen, Zhongming Wei

    J. Semicond.  2022, 43 (1): 011001

    doi: 10.1088/1674-4926/43/1/011001

    Abstract Full Text PDF Get Citation

    Twist-angle two-dimensional systems, such as twisted bilayer graphene, twisted bilayer transition metal dichalcogenides, twisted bilayer phosphorene and their multilayer van der Waals heterostructures, exhibit novel and tunable properties due to the formation of Moiré superlattice and modulated Moiré bands. The review presents a brief venation on the development of “twistronics” and subsequent applications based on band engineering by twisting. Theoretical predictions followed by experimental realization of magic-angle bilayer graphene ignited the flame of investigation on the new freedom degree, twist-angle, to adjust (opto)electrical behaviors. Then, the merging of Dirac cones and the presence of flat bands gave rise to enhanced light-matter interaction and gate-dependent electrical phases, respectively, leading to applications in photodetectors and superconductor electronic devices. At the same time, the increasing amount of theoretical simulation on extended twisted 2D materials like TMDs and BPs called for further experimental verification. Finally, recently discovered properties in twisted bilayer h-BN evidenced h-BN could be an ideal candidate for dielectric and ferroelectric devices. Hence, both the predictions and confirmed properties imply twist-angle two-dimensional superlattice is a group of promising candidates for next-generation (opto)electronics.

  • Investigation on the passivation, band alignment, gate charge, and mobility degradation of the Ge MOSFET with a GeO x/Al2O3 gate stack by ozone oxidation

    Lixing Zhou, Jinjuan Xiang, Xiaolei Wang, Wenwu Wang

    J. Semicond.  2022, 43 (1): 013101

    doi: 10.1088/1674-4926/43/1/013101

    Abstract Full Text PDF Get Citation

    Ge has been an alternative channel material for the performance enhancement of complementary metal–oxide–semiconductor (CMOS) technology applications because of its high carrier mobility and superior compatibility with Si CMOS technology. The gate structure plays a key role on the electrical property. In this paper, the property of Ge MOSFET with Al2O3/GeOx/Ge stack by ozone oxidation is reviewed. The GeOx passivation mechanism by ozone oxidation and band alignment of Al2O3/GeOx/Ge stack is described. In addition, the charge distribution in the gate stack and remote Coulomb scattering on carrier mobility is also presented. The surface passivation is mainly attributed to the high oxidation state of Ge. The energy band alignment is well explained by the gap state theory. The charge distribution is quantitatively characterized and it is found that the gate charges make a great degradation on carrier mobility. These investigations help to provide an impressive understanding and a possible instructive method to improve the performance of Ge devices.

  • Self-charging power textiles integrating energy harvesting triboelectric nanogenerators with energy storage batteries/supercapacitors

    Kai Dong, Zhong Lin Wang

    J. Semicond.  2021, 42 (10): 101601

    doi: 10.1088/1674-4926/42/10/101601

    Abstract Full Text PDF Get Citation

    Lightweight and flexible self-charging power systems with synchronous energy harvesting and energy storage abilities are highly desired in the era of the internet of things and artificial intelligences, which can provide stable, sustainable, and autonomous power sources for ubiquitous, distributed, and low-power wearable electronics. However, there is a lack of comprehensive review and challenging discussion on the state-of-the-art of the triboelectric nanogenetor (TENG)-based self-charging power textiles, which have a great possibility to become the future energy autonomy power sources. Herein, the recent progress of the self-charging power textiles hybridizing fiber/fabric based TENGs and fiber/fabric shaped batteries/supercapacitors is comprehensively summarized from the aspect of textile structural designs. Based on the current research status, the key bottlenecks and brighter prospects of self-charging power textiles are also discussed in the end. It is hoped that the summary and prospect of the latest research of self-charging power textiles can help relevant researchers accurately grasp the research progress, focus on the key scientific and technological issues, and promote further research and practical application process.

  • Flexible energy storage devices for wearable bioelectronics

    Xiaohao Ma, Zhengfan Jiang, Yuanjing Lin

    J. Semicond.  2021, 42 (10): 101602

    doi: 10.1088/1674-4926/42/10/101602

    Abstract Full Text PDF Get Citation

    With the growing market of wearable devices for smart sensing and personalized healthcare applications, energy storage devices that ensure stable power supply and can be constructed in flexible platforms have attracted tremendous research interests. A variety of active materials and fabrication strategies of flexible energy storage devices have been intensively studied in recent years, especially for integrated self-powered systems and biosensing. A series of materials and applications for flexible energy storage devices have been studied in recent years. In this review, the commonly adopted fabrication methods of flexible energy storage devices are introduced. Besides, recent advances in integrating these energy devices into flexible self-powered systems are presented. Furthermore, the applications of flexible energy storage devices for biosensing are summarized. Finally, the prospects and challenges of the self-powered sensing system for wearable electronics are discussed.

  • Recently advances in flexible zinc ion batteries

    Chuan Li, Pei Li, Shuo Yang, Chunyi Zhi

    J. Semicond.  2021, 42 (10): 101603

    doi: 10.1088/1674-4926/42/10/101603

    Abstract Full Text PDF Get Citation

    Flexible batteries are key component of wearable electronic devices. Based on the requirements of medical and primary safety of wearable energy storage devices, rechargeable aqueous zinc ion batteries (ZIBs) are promising portable candidates in virtue of its intrinsic safety, abundant storage and low cost. However, many inherent challenges have greatly hindered the development in flexible Zn-based energy storage devices, such as rigid current collector and/or metal anode, easily detached cathode materials and a relatively narrow voltage window of flexible electrolyte. Thus, overcoming these challenges and further developing flexible ZIBs are inevitable and imperative. This review summarizes the most advanced progress in designs and discusses of flexible electrode, electrolyte and the practical application of flexible ZIBs in different environments. We also exhibit the heart of the matter that current flexible ZIBs faces. Finally, some prospective approaches are proposed to address these key issues and point out the direction for the future development of flexible ZIBs.

  • Recent progress of efficient flexible solar cells based on nanostructures

    Yiyi Zhu, Qianpeng Zhang, Lei Shu, Daquan Zhang, Zhiyong Fan

    J. Semicond.  2021, 42 (10): 101604

    doi: 10.1088/1674-4926/42/10/101604

    Abstract Full Text PDF Get Citation

    Flexible solar cells are important photovoltaics (PV) technologies due to the reduced processing temperature, less material consumption and mechanical flexibility, thus they have promising applications for portable devices and building-integrated applications. However, the efficient harvesting of photons is the core hindrance towards efficient, flexible PV. Light management by nanostructures and nanomaterials has opened new pathways for sufficient solar energy harvesting. Nanostructures on top surfaces provide an efficient pathway for the propagation of light. Aside from suppressing incident light reflection, micro-structured back-reflectors reduce transmission via multiple reflections. Nanostructures themselves can be the absorber layer. Photovoltaics based on high-crystallinity nanostructured light absorbers demonstrate enhanced power conversion efficiency (PCE) and excellent mechanical flexibility. To acquire a deep understanding of the impacts of nanostructures, herein, a concise overview of the recent development in the design and application of nanostructures and nanomaterials for photovoltaics is summarized.

  • Progress in flexible perovskite solar cells with improved efficiency

    Hua Kong, Wentao Sun, Huanping Zhou

    J. Semicond.  2021, 42 (10): 101605

    doi: 10.1088/1674-4926/42/10/101605

    Abstract Full Text PDF Get Citation

    Perovskite solar cell has emerged as a promising candidate in flexible electronics due to its high mechanical flexibility, excellent optoelectronic properties, light weight and low cost. With the rapid development of the device structure and materials processing, the flexible perovskite solar cells (FPSCs) deliver 21.1% power conversion efficiency. This review introduces the latest developments in the efficiency and stability of FPSCs, including flexible substrates, carrier transport layers, perovskite films and electrodes. Some suggestions on how to further improve the efficiency, environmental and mechanical stability of FPSCs are provided. Specifically, we considered that to elevate the performance of FPSCs, it is crucial to substantially improve film quality of each functional layer, develop more boost encapsulation approach and explore flexible transparent electrodes with high conductivity, transmittance, low cost and expandable processability.

  • Flexible perovskite solar cells: Materials and devices

    Guanqi Tang, Feng Yan

    J. Semicond.  2021, 42 (10): 101606

    doi: 10.1088/1674-4926/42/10/101606

    Abstract Full Text PDF Get Citation

    Flexible perovskite solar cells (FPSCs) are supposed to play an important role in the commercialization of perovskite solar cells due to their unique properties, such as high efficiency, thin thickness and being compatible with roll to roll (R2R) process for mass production. At present, deformable and lightweight FPSCs have been successfully prepared and applied as power supply by integrating with different wearable and portable electronics, which opens a niche market for photovoltaics. In this mini review, we will introduce the recent progress of FPSCs from the aspect of small-area flexible devices, R2R processed devices with large scale and emerging flexible cells with deformability and stretchability. Finally, conclusion and outlook are provided.

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