期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

石墨烯在光生电荷分离与传输机制中的作用

Effect of Grephene on Separation and Transport Mechanism of Photogenerated Charges
下载PDF
导出
摘要 基于不同质量分数(0.4%、0.8%、1.2%、1.6%、2.0%和2.4%)还原氧化石墨烯(RGO),合成了Cu-_4Bi_4S_9(CBS)与RGO复合体系(CBS-RGO),并制备了Zn_2SnO_4/Cu_4Bi_4S_9(ZTO/CBS)、Zn_2SnO_4/Cu_4Bi_4S_9-RGO(ZTO/CBS-RGO)两类异质结以及体相异质结太阳能电池。对于CBS-RGO,随着RGO质量分数从0.4%增加到1.6%,其光伏响应逐渐增强,当RGO质量分数超过1.6%时,其光伏响应逐渐减弱。表面光电压谱测试结果表明:ZTO/CBS-RGO呈现出优于ZTO/CBS的光伏响应;在正外电场诱导下,ZTO/CBS-RGO仍然具有优于ZTO/CBS的光伏响应。此外,ZTO/CBS和ZTO/CBS-RGO两类体相异质结太阳能电池最高光电转换效率分别为1.2%和2.8%,表明复合RGO可有效提高光生电荷分离效率。 Based on various mass fractions( 0. 4%,0. 8%,1. 2%,1. 6%,2. 0% and 2. 4%) of reduced graphene oxide( RGO),the composite system of Cu_4Bi_4S_9( CBS) and RGO( CBS-RGO) were synthesized.Then two types of heterojunction Zn_2SnO_4/ CBS( ZTO / CBS) and ZTO / CBS-RGO( ZTO / CBS-RGO),as well as its bulk heterojunction solar cells were fabricated. For CBS-RGO,the photovoltaic response increased gradually with the mass fractions of RGO from 0. 4% to 1. 6%. Above 1. 6%,the photovoltaic response decreased gradually. The surface photovoltage spectroscopy test results show that ZTO / CBS-RGO exhibits the higher photovoltaic response than ZTO / CBS. Under the positive bias electric field inducing,ZTO / CBS-RGO also presents the higher photovoltaic response than ZTO / CBS. Besides,the highest photoelectric conversion efficiencies of two types of bulk heterojunction solar cells of ZTO / CBS and ZTO / CBS-RGO is 1. 2% and2. 8%,respectively. It is suggested that the composite RGO can improve the separation efficiency of photogenerated charges.
作者 赵涛涛 赵高峰
机构地区 河南大学物理与电子学院
出处 《河南科技大学学报（自然科学版）》 CAS 北大核心 2016年第4期87-91,96,共6页 Journal of Henan University of Science And Technology:Natural Science
基金 河南省科技厅基础研究基金项目(132300410236)
关键词 光伏响应 异质结 光生电荷分离 光电转换效率 photovoltaic response heterojunction separation of photogenerated charges photoelectric conversion efficiency
分类号 O469 [理学—凝聚态物理]
  • 相关文献

参考文献14

  • 1李香利,徐春花.搅拌方法对阳极氧化法制备TiO_2纳米管阵列的影响[J].河南科技大学学报（自然科学版）,2011,32(5):1-4. 被引量：4
  • 2吴峰敏,张银柯,徐航,李梅.溶胶凝胶微乳液法制备纳米TiO_2条件的响应面分析法[J].河南科技大学学报（自然科学版）,2014,35(3):95-99. 被引量：2
  • 3CHENG B C,XU J, OUANGYANG Z Y,et al. Individual ohmic contacted ZnO/Zn2SnO4 radial heterostructured nanowires as photodetectors with a broad-spectral-response :injection of electrons into/from interface states [ J]. Journal of materials chemistry c,2014,2(9) :1808 - 1814.
  • 4LANA-VILLARREAL T,BOSCHLOO G, HAGFELDT A. Nanostructured zinc stannate as semiconductor working electrodes for dye-sensitized solar cells [ J ]. Journal of physical chemistry c,2007,111 ( 14 ) :5549 - 5556.
  • 5LI J,ZHONG H Z, LIU H J, et al. One dimensional ternary Cu-Bi-S based semiconductor nanowires : synthesis, optical and electrical properties [ J ]. Journal of materials chemistry, 2012,22 ( 34 ) : 17813 - 17819.
  • 6LI H X,ZHANG Q L, PAN A L, et al. Single-crystalline Cu4Bi4S9 nanoribbons: facile synthesis, growth mechanism, and surface photovohaie properties [ J ]. Chemistry of materials ,2011,23 ( 5 ) : 1299 - 1305.
  • 7LIU X Y,ZHENG H W,ZHANG J W, et al. Photoelectric properties and charge dynamics for a set of solid state solar cells with Cu4Bi4S9 as the absorber layer[ J]. Journal of materials chemistry a,2013,36( 1 ) :10703 - 10712.
  • 8GEIM A K. Graphene : status and prospects [ J ]. Science,2009,324 ( 5934 ) : 1530 - 1534.
  • 9LEE C G, WEI X D, KYSAR J W, et al. Measurement of the elastic properties and intrinsic strength of monolayer graphene [ J ]. Science ,2008,321 ( 5887 ) :385 - 388.
  • 10ZHENG H W,LIU X Y, DIAO C L,et al. A separation mechanism of photogenerated charges and magnetic properties for BiFeO3 microspheres synthesized by a facile hydrothermal method [ J]. Physical chemistry chemical physics, 2012, 14(23) :8376 -8381.

二级参考文献20

  • 1Gong D,Grimes C A,Varghese O K,et al. Titanium Oxide Nanotube Arrays Prepared by Anodic Oxidation [ J ]. Journal of Materials Research,2001,16(12) :3331 - 3334.
  • 2Macak J M, Tsuchiya H, Ghicov A, et al. Dye-sensitized Anodic TiO2 Nanotubes [ J ]. Electrochemistry Communications, 2005,7(11) :1133 - 1137.
  • 3Mor G K, Karthik S, Paulose M, et al. Use of Highly-ordered TiO2 Nanotube Arrays in Dye-sensitized Solar Cells [ J ]. Nano Lett,2006,6(2) :215 -218.
  • 4Mor G K, Shankar K, Paulose M, et al. Enhanced Photocleavage of Water Using Titania Nanotube Arrays [ J ]. Nano Lett, 2005,5(1):191 -195.
  • 5Varghese O K, Gong D, Paulose M, et al. Hydrogen Sensing Using Titania Nanotubes [ J ]. Sensors and Actuators B: Chemical ,2003,93 ( 1/3 ) :338 - 344.
  • 6Mor G K, Carvalho M A, Varghese O K, et al. A Room-temperature TiO2-nanotube Hydrogen Sensor Able to Self-clean Photoactively from Environmental Contamination [ J ]. J Mater Res, 2004,19 ( 2 ) : 628 - 634.
  • 7Xie Z B,Blackwood D J. Effects of Anodization Parameters on the Formation of Titania Nanotubes in Ethylene Glycol[ J]. Electrochimica Acta,2010,56 : 905 - 912.
  • 8Lei Huang, Feng Peng, Hao Yu,et al. The Influence of Ultrasound on the Formation of TiO2 Nanotube Arrays[ J ]. Materials Research Bulletin ,2010,45:200 - 204.
  • 9Samuel A B. Corrosion Control[ M ]. 2 ed. Edmonton : CASTI Publishing Inc ,2001:61.
  • 10Robertson K J, Robertson M C, Bahnemann W. Removal of Microorganisms and Their Chemical Metabolites from Water Using Semiconductor Photocatalysis[ J]. Journal of Hazardous Materials,2012,211 ( 15 ) :161 - 171.

共引文献4

河南科技大学学报（自然科学版）
2016年 第4期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部