Jinyang Liu(刘金养)*, Zhigao Huang(黄志高), Fachun Lai(赖发春), Limei Lin(林丽梅), Yangyang Xu(徐杨阳，硕士生), Chuandong Zuo(左传东，本科生), Weifeng Zheng(郑卫峰) and Yan Qu(瞿燕) Controllable Growth of the Graphene from Millimeter-Sized Monolayer to Multilayer on Cu by Chemical Vapor Deposition, Nanoscale Research Letters 10:455 DOI 10.1186/s11671-015-1164-0，2015
As is well established, mastery to precise control of the layer number, stacking order of graphene, and the size of single-crystal monolayer graphene is very important for both fundamental interest and practical applications. In this report, millimeter-sized single-crystal monolayer graphene has been synthesized to multilayer graphene on Cu by chemical vapor deposition. The relationship of the growth process between monolayer graphene and multilayer graphene is investigated carefully. Besides the general multilayer graphene with Bernal stacking order, parts of multilayer graphene with non-Bernal stacking order were modulated under optimized growth conditions. The oxide nanoparticle on the Cu surface derived from annealing has been found to play the key role in nucleation. In addition, the hydrogen concentration impacts significantly on the layer number and shape of the graphene. Moreover, a possible mechanism was proposed to understand the growth process discussed above, which may provide an instruction to graphene growth on Cu by chemical vapor deposition.
Sujuan Chen(陈速娟，硕士生), Limei Lin(林丽梅), Jinyang Liu (刘金养)*, Peiwei Lv(吕佩伟), Xiaoping Wu(吴晓萍，硕士生), Weifeng Zheng(郑卫峰), Yan Qu(瞿燕), Fachun Lai (赖发春)* An electrochemical constructed p-Cu2O/n-ZnO heterojunction for solar cell, Journal of Alloys and Compounds 644, 378-382，2015,
官网链接：
Abstract:
This article demonstrates a facile method to fabricate a solar cell based on p-Cu2O/n-ZnO heterostructure, which was constructed through n-ZnO layer deposition by radio frequency magnetron sputtering and subsequent p-Cu2O film cover by electrochemical deposition with two electrodes. The applied potential and deposition time of the Cu2O were investigated and it was found to be critical to the morphologies, microstructure, and optical properties of the heterojunction solar cells. The current density–voltage (J–V) characteristics of p-Cu2O/n-ZnO heterojunction solar cells were measured and show well-defined rectifying behavior. The results indicate that the crystal orientation and morphologies of the Cu2O play key roles in photovoltaic conversion efficiency of the p-Cu2O/n-ZnO heterojunction solar cell.
本网全文下载：
An electrochemical constructed p-Cu2O n-ZnO heterojunction for solar cell.pdf
吴晓萍(硕士生), 刘金养, 林丽梅, 郑卫峰, 瞿燕, 赖发春* ZnO纳米花的制备及其性能，物理学报，64(20), 207802(7pp), 2015
官网链接：
摘要：利用化学气相沉积法, 在铜箔上成功制备出形似自然界中刺球花的ZnO 纳米花结构. 实验进一步研究了氧气和氩气流量比例分别为1 : 150, 1 : 200, 1 : 250 和1 : 400 时对ZnO 纳米花结构和性能的影响. 结果表明,ZnO 纳米花上的ZnO 纳米棒的长径比随氧气氛的减少而减小; 在氧气和氩气流量比例为1 : 250 时制备出的ZnO 纳米花尺寸均匀、形貌均一、花型结构最完美. ZnO 纳米花的室温光致发光谱表明, 随着氧气氛的减少,可见区域的发光从一个波包变成一个宽峰, 且与锌空位相关的缺陷发光峰在减弱, 与氧空位相关的缺陷发光峰在增强. 基于实验结果, 提出了一种在铜箔上制备ZnO 纳米花结构的生长模型.
本网全文下载：ZnO 纳米花的制备及其性能.pdf
