用于超快能量收集和下一代电子学的磷光体异质结构纳米器件
Phosphorene Heterostructure Nanodevices for Ultrafast Energy Harvesting and Next Generation Electronics
摘要：
过渡金属二硫属化物（TMDC）作为薄层半导体材料在晶体管技术中的应用前景广阔。TMDCs为研究磷烯的性质提供了一个独特的有利位置，磷烯是一种高效和可调的超级材料。由于在环境条件下在磷烯中观察到的空气稳定性的缺乏，磷烯-TMDC异质结构纳米器件在很大程度上仍未被探索。本研究探讨了一种新的纳米纤维技术，有效地提高了石墨烯类似磷烯的空气稳定性和实际的可扩展性。首次采用微机械剥离法和干转移法合成了磷烯-WS 2异质结构。利用电子束光刻技术将阳极延伸到磷烯异质结区域，制备了一种新型的伞形接触。利用扫描电镜、拉曼光谱、栅输运和光电流响应技术对器件进行了物理和电学表征。用延长的阳极接触制造的装置在延长的时间段内保持功能性，这表明接触防止了磷烯在环境条件下降解。通过电流响应获得的初步结果表明，一个有前途的异质结与高速晶体管性能。这项工作表明，磷烯利用一种新的接触纳米纤维技术的前所未有的寿命和实际的可扩展性。纳米器件的潜在应用包括下一代电子器件、光电探测器、储能器件和光伏电池。
英文摘要：
Transition metal dichalcogenides (TMDCs) have recently shown much promise as thin layer semiconductors in application to transistor technology. TMDCs provide a unique vantage point for studying the properties of phosphorene, a highly efficient and tunable super-material. Phosphorene-TMDC heterostructure nanodevices have remained largely unexplored due to the lack of air stability observed in phosphorene under ambient conditions. This study investigates a novel nanofabrication technique that effectively enhances the air stability and practical scalability of graphene-analogous phosphorene. A phosphorene-WS2 heterostructure was first designed and synthesized via micromechanical exfoliation and dry transfer methods. A novel umbrella contact was fabricated using electron beam lithography which extended the electrical anode over the phosphorene heterojunction region. SEM, Raman spectroscopy, gate transport, and photocurrent response techniques were employed to characterize the device physically and electronically. Devices fabricated with an extended anodic contact remained functional for extended periods of time, suggesting that the contact had prevented the phosphorene from degradation in ambient conditions. Preliminary results obtained via current response indicate a promising heterojunction with high speed transistor properties. This work suggests the unprecedented longevity and practical scalability of phosphorene utilizing a novel contact nanofabrication technique. Potential applications of the nanodevice include next generation electronic devices, photodetectors, energy storage devices, and photovoltaic cells.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
