报告人：南京理工大学纳米光电材料研究所，曾海波教授。
时间：2015年12月31日周四下午4:00 地点：新楼505报告厅 报告摘要： 目前，照明与显示领域正在迎来品质升级与柔性转型的关键时机。一方面，对于LED照明与液晶显示而言，正采用的白光源为蓝光芯片与黄光荧光粉的组合方案，如能添加量子点为光频转换介质，将能极大地改善显色指数、色温、色域、及蓝光伤害等问题；另一方面，针对柔性显示需求，相对于传统的硬质InGaN蓝光芯片，需要发展新的电致发光三基色材料与柔性LED器件，比如至薄至轻至柔的二维半导体、可打印量子点等。 近年来，曾海波教授带领南理工光电所，面向“健康照明与新型显示”的重要需求，在超薄半导体与非镉量子点方面开拓了两个新的研究方向：砷烯与锑烯【1-7】、无机钙钛矿量子点【8-15】。本报告主要介绍我们2015年研究进展：1），在超薄半导体方面，从理论上设计了单原子层砷烯和锑烯的结构，考察了其热力学与动力学稳定性，预测了维度缩减诱导的“半金属-半导体”电子结构转变，分析了载流子迁移率，从实验上实现了少层与单层锑烯的多种方法制备，初步研究了晶体管器件的物理性能；2），在非镉量子点方面，发展了全无机钙钛矿量子点的室温快速大产量合成，观察到高品质发光、双光子效应、受激发射等光学特性，初步发展了光限幅激光防护玻璃、背光LED、电致发光LED等原型器件。 【1】 Zhang, Zeng,* et al., Atomically Thin Arsenene and Antimonene: Semimetal-semiconductor and Indirect-direct Band Gap Transitions, Angew. Chem. In. Ed. 2015, 54, 3112. Highlighted by Nature, NanoWerk, ChemistryViews, and MaterialsViews 【2】 Zhang, Zeng,* et al., Semiconducting Group-V Monolayers: Broadband Gaps and High Carrier Mobilities, Angew. Chem. In. Ed. 2015, Accepted, DOI: 201507568R1. 【3】 Zhu, Zeng,* et al., Near-Infrared Plasmonic Two-demensional Semi-metals for Communication and Biological Applications, Advanced Function Materials 2015, DOI: adfm.201504884R1. 【4】 Mao, Zeng,* et al., Nonlinear saturable absorption of liquid-exfoliated molybdenum/tungstem ditelluide nanosheets, Small 2015, DOI: adfm. 201503348R1. 【5】 Zhao, Zeng,* et al., 3D white graphene foam scavengers: vesicant-assisted foaming boosts gram-level yield and hierarchical pores for super-strong pollutant removal applications, NPG Asia Materials, 2015, 7, e168. 【6】 Yang, Zeng,* et al., A High-Performance Nitro-Explosives Schottky Sensor Boosted by Interface Modulation, Advanced Function Materials 2015, 25, 4039. 【7】 Li, Zeng,* et al., Integrating large specific surface area and high conductivity in hydrogenated NiCo2O4 double-shell hollow spheres to improve supercapacitors, NPG Asia Materials, 2015, 7, e165. 【8】 Song, Zeng,* et al., All-Inorganic Perovskite Quantum Dot Light-emitting Diodes, Advanced Materials 2015, 27, 7162-7167. Highlighted by NanoWerk and MaterialsViews 【9】 Li, Zeng,* et al., Intercrossed Carbon Nanorings with Pure Surface States as Low-Cost and Environment-Friendly Phosphors for White-Light-Emitting Diodes, Angew. Chem. In. Ed. 2015, 54, 1759. Highlighted by NanoWerk, ChemistryViews, and MaterialsViews 【10】 Wang, Zeng,* et al., Superior optical gain and lasing characteristics from all-inorganic perovskite quantum dots, Advanced Materials 2015, 27, 7101-7108. 【11】 Wang, Zeng,* et al., Nonlinear absorption and low-threshold multi-photon pumped stimulated emission from all-inorganic perovskite nanocrystals, Nano Letters 2015, DOI: nl-2015-04110e. 【12】 Song, Zeng,* et al., A General One-Pot Strategy for the Synthesis of High-Performance Transparent-Conducting-Oxide Nanocrystal Inks for All-Solution-Processed Devices, Angew. Chem. In. Ed. 2015, 54, 462. Highlighted by NanoWerk 【13】 Wu, Zeng,* et al., Cu–N Dopants Boost Electron Transfer and Photooxidation Reactions of Carbon Dots, Angew. Chem. In. Ed. 2015, 54, 6540. 【14】 Li, Zeng,* Carbon/graphene dots for optoelectronic devices: a review, Advanced Functional Materials 2015, 54, 4929. 【15】 Song, Zeng,* Transparent Electrodes Printed with Nanocrystal Inks for Flexible Smart Devices., Angew. Chem. In. Ed. 2015, 54, 9760.
邀请人：方国家教授
