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Chinese Physics B 2014年第8期23卷 350-356页

作者： Huang Zhen-Hua institute of photo-electronics thin film devices and technique of nankai university Tianjin 300071 China Key Laboratory of photo-electronics thin film devices and technique of Tianjin Tianjin 300071 China Key Laboratory of photo-electronic Information Science and Technology of Ministry of Education (nankai university) Tianjin 300071 China

In this article, a new type of superimposing morphology comprised of a periodic nanostructure and a random structure is proposed for the first time to enhance the light scattering in silicon-based thin film solar cells. According to the framework of the Reyleigh-Sommerfeld diffraction algorithm and the experimental results of random morphologies, we analyze the light-scattering properties of four superimposing morphologies and compare them with the individual morphologies in detail. The results indicate that the superimposing morphology can offer a better light trapping capacity, owing to the coexistence of the random scattering mechanism and the periodic scattering mechanism. Its scattering property will be dominated by the individual nanostructures whose geometrical features play the leading role.

关键词： light scattering superimposing morphology random periodic

Influence of p-layer on the performance of n-i-p μc-Si:H thin film solar cells

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Science china(Physics,Mechanics & Astronomy) 2010年第11期53卷 2042-2046页

作者： YUAN YuJie 1,2,ZHANG KaiLiang 1,2,WEI Zhen 1,2 & GENG XinHua 3 1 College of electronics Information Engineering,Tianjin university of Technology,Tianjin 300384,china 2 Tianjin Key Laboratory of film Electronic and Communication devices,Tianjin university of Technology,Tianjin 300384,china 3 institute of photo-electronics thin film devices and technique,nankai university,Tianjin 300071,china 1. College of electronics Information Engineering Tianjin University of Technology Tianjin 300384 China2. Tianjin Key Laboratory of Film Electronic and Communication Devices Tianjin University of Technology Tianjin 300384 China3. Institute of Photo-Electronics Thin Film Devices and Technique Nankai University Tianjin 300071 China

The high pressure radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) process was adopted to prepare the n-i-p microcrystalline silicon solar cells,the influence of p-type layers on the performance of the solar cells was investigated,and the optimum p layer suited to the n-i-p microcrystalline silicon solar cells was *** experimental results demonstrate that the performance of the solar cells can be highly affected by the structural and optical properties of the p-layers,and the performance of solar cells can be greatly improved by optimizing p *** have achieved an initial active-area efficiency of 8.17% (V oc =0.49 V,J sc =24.9 mA/cm 2 ,FF=67%) for the μc-Si:H single-junction n-i-p solar cells and an initial active-area efficiency of 10.93% (V oc =1.31 V,J sc =13.09 mA/cm 2 ,FF=64%) for the a-Si:H/μc-Si:H tandem n-i-p solar cells.

关键词： microcrystalline silicon solar cells quantum confinement effect p-type layers

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PVDF基准固态染料敏化太阳电池的研究

太阳能学报 2010年第3期31卷 302-305页

作者：蔡宁李媛赵颖纪伟伟张晓丹熊绍珍南开大学光电子薄膜器件与技术研究所天津市光电子薄膜器件与技术重点实验室天津300071

以聚偏氟乙烯(PVDF)为凝胶剂,分别将有机溶剂、离子液体电解质固化,并采用这两种体系的电解质分别封装成染料敏化太阳电池,测试了凝胶剂的加入量对太阳电池光电特性的影响,同时利用交流阻抗谱分析了聚合物的加入对抑制暗电流的作用。其... 详细信息

以聚偏氟乙烯(PVDF)为凝胶剂,分别将有机溶剂、离子液体电解质固化,并采用这两种体系的电解质分别封装成染料敏化太阳电池,测试了凝胶剂的加入量对太阳电池光电特性的影响,同时利用交流阻抗谱分析了聚合物的加入对抑制暗电流的作用。其中,有机溶剂电解质中PVDF的质量分数分别为5%、20%、25%;离子液体(甲基-丙基咪唑,MPII)电解质中PVDF的质量分数分别为0%、1%、10%。实验中制备的准固态小面积(0.25cm^2)封装电池光电转换效率均高于5.3%,PVDF含量为25%的有机溶剂型准固态电池的效率达到5.92%。此外,实验中还制备了密封的1cm^2的准固态电解质电池,并获得了6.26%的效率,此时对应的J_(SC)=15.4mA/cm^2,V_(OC)=0.672V,FF=60.5%。

关键词：染料敏化太阳电池准固态电解质

Synthesis of nanostructural ZnO using hydrothermal method for dye-sensitized solar cells

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Science china(Technological Sciences) 2010年第4期53卷 1146-1149页

作者： WANG ChunXiao1,2,ZHANG XiaoDan1,WANG DongFeng1,YANG ZhenHua1,2,JI WeiWei1,ZHANG CunShan2 & ZHAO Ying1 1 institute of photo-electronic thin film devices and Technology of nankai university,Key Laboratory of photo-electronic Information Science and Technology(nankai university),Ministry of Education,Tianjin 300071,china 2 College of Information Engineering,Hebei university of Technology,Tianjin 300130,china 1. Key Laboratory of photo-electronic Information Science and Technology (nankai university) Ministry of Education Institute of Photo-electronic Thin Film Devices and Technology of Nankai University Tianjin 300071 China2. College of Information Engineering Hebei University of Technology Tianjin 300130 China

ZnO nanocrystals with different morphologies were successful synthesized by a simple hydrothermal method combined with and without hexadecyl trimethyl ammonium bromide(CTAB).The phases and morphologies of the products were measured using X-ray diffraction(XRD),scanning electron microscopy(SEM),and transmission electron microscopy(TEM),*** results indicated that the ZnO nanocrystals with different morphologies were of hexagonal wurtzite *** nanorods were obtained without using CTAB,and then the morphology of ZnO changed to ZnO nanoflower and the density of nanoflower became denser with the increase of CTAB *** nanoflower and ZnO nanorod as photoanode were applied to dye-sensitized solar cells(DSSC),*** nanoflower shows a higher dye loading,so DSSC with the use of the ZnO nanoflower possesses a higher conversion efficiency than ZnO nanorod.

关键词： DSSC ZnO

Effects of annealing rate and morphology of sol–gel derived ZnO on the performance of inverted polymer solar cells

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Chinese Physics B 2013年第11期22卷 664-668页

作者：余璇胡子阳黄振华于晓明张建军赵庚申赵颖 institute of photo-electronic thin film devices and Technology of nankai university Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin Key Laboratory of Opto-electronic Information Science and Technology for Ministry of Education

The effects of annealing rate and morphology of sol–gel derived zinc oxide （ZnO） thin films on the performance of inverted polymer solar cells （IPSCs） are investigated. ZnO films with different morphologies are prepared at different annealing rates and used as the electron transport layers in IPSCs. The undulating morphologies of ZnO films fabricated at annealing rates of 10 ℃/min and 3 ℃/min each possess a rougher surface than that of the ZnO film fabricated at a fast annealing rate of 50 ℃/min. The ZnO films are characterized by atomic force microscopy （AFM）, optical transmittance measurements, and simulation. The results indicate that the ZnO film formed at 3 ℃/min possesses a good-quality contact area with the active layer. Combined with a moderate light-scattering, the resulting device shows a 16% improvement in power conversion efficiency compared with that of the rapidly annealed ZnO film device.

关键词： polymer solar cells zinc oxide thin film morphology annealing

SiGe:H thin filmS PREPARED BY PLASMA ASSISTED REACTIVE THERMAL CHEMICAL VAPOR DEPOSITION

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SiGe:H THIN FILMS PREPARED BY PLASMA ASSISTED REACTIVE THERM...

2007世界太阳能大会：太阳能与人类居住

作者： Liping Zhang Jianjun Zhang Zeren Shang Zengxin Hu Jian Sun Yin Zhao Xinhua Geng institute of photo-electronics thin film devices and technique,nankai university,Tianjin 300072,china Tianjin Key Laboratory of photo-electronic thin film devices and Technology Key Laboratory of Opto-electronic Information Science and Technology (nankai university,Tianjin university),Ministry of Education,Tianjin 300072,china

In this work,very high frequency plasma assisted reactive thermal chemical vapor deposition(VHFPA-RTCVD) technology is applied to prepare SiGe:H thin films on a low-temperature *** structural properties of SiGe:H thin...

关键词：

Characteristics of CIGS thin films Fabricated under Simple Control Conditions

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Characteristics of CIGS Thin Films Fabricated under Simple C...

第十五届国际光伏科学与工程大会

作者： Ao Jianping~1 Sun Yun~2 Li Fengyan He Qing Sun Guozhong Zhou Zhiqiang Li Changjian Liu Fangfang institute of photoelectron Technology nankai university Tianjin 300071 china Tianjin Key Laboratory of photo-electronic thin film devices and Technology Tianjin 300071 china

＜正＞ The evaporation source and substrate heater with small heating power are installed in vacuum chamber. Three-stage process and the constant power heating substrates at second-stage and third-stage are adopted. These methods improved the controllability and reproducibility of the depositing CIGS thin films greatly. The precision of temperature control is up to±4℃for Cu, ±2℃for In, ±3℃for Ga and ±1℃for Se source, respectively. The maximum differences of CIGS thin film components are Cu: 1.92%;In: 1.68%;Ga: 1.55%;Se: 1.19%, respectively. The typical elemental ratio of CIGS thin film is Cu: 22.20%, In: 20.05%, Ga: 6.25, Se: 51.5%, respectively and Cu/（In+Ga） =0.87～0.95, Ga/（In+Ga）=0.19-0.24;The film thickness is 2±0.1μm.

关键词： CIGS thin film Multisource Coevaporation Three-stage Process

Fabrication of Relatively High Growth Rate Microcrystalline Silicon thin films and Its Application in Solar Cells

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Fabrication of Relatively High Growth Rate Microcrystalline ...

第十五届国际光伏科学与工程大会

作者： Gao Yantao Zhang Xiaodan Zhao Ying Sun Jian Zhu Feng Wei Changchun Wang Yan Han XiaoYan institute of photo-electronic thin film devices and technology of nankai university, Tianjin 300071, P.R.china Key Laboratory of Opto-electronic Information Science and Technology (nankai university, Tianjin university), Ministry of Education, Tianjin 300071, P.R china

Microcrystalline silicon thin films at silane concentration 6%-9% were prepared by VHF-PECVD. The result indicates that dark conductivity decreases with increasing silane concentration, but photosensitivity increases. All microcrystalline silicon thin films are with (220) preferential orientation in this experiment. Finally the solar cells with 6.6% conversion efficiency were fabricated under the deposition rate 5A/s, the responding material with dark conductivity 10S/cm and photosensitivity 1000. There is no ZnO back reflector.

关键词： Microcrystalline Silicon thin film VHF-PECVD

Quantifying the effectiveness of SiO_2/Au light trapping nanoshells for thin film poly-Si solar cells

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Science china(Technological Sciences) 2010年第8期53卷 2228-2231页

作者： BAI YiMing 1 ,WANG Jun 2 ,CHEN NuoFu 1,3 ,YAO JianXi 1 ,YIN ZhiGang 3 ,ZHANG Han 3 , ZHANG XingWang 3 ,HUANG TianMao 3 ,WANG YanShuo 3 &YANG XiaoLi 3 1School of Renewable Energy Engineering,North china Electric Power university,Beijing 102206,china 2 National Engineering Research Center for Optoelectronic devices,institute of Semiconductors, Chinese Academy of Sciences,PO Box 912.Beijing 100083,china 3 Key Laboratory of Semiconductor Materials Science,institute of Semiconductors, Chinese Academy of Sciences,PO Box 912.Beijing 100083,china 1. School of Renewable Energy Engineering North China Electric Power University Beijing 102206 China2. National Engineering Research Center for Optoelectronic Devices Institute of Semiconductors Chinese Academy of Sciences PO Box 912 Beijing 100083 China3. Key Laboratory of Semiconductor Materials Science Institute of Semiconductors Chinese Academy of Sciences PO Box 912 Beijing 100083 China

In order to enhance light absorption of thin film poly-crystalline silicon(TF poly-Si)solar cells over a broad spectral range, and quantify the effectiveness of nanoshell light trapping structure over the full solar spectrum in theory,the effective photon trapping flux(EPTF)and effective photon trapping efficiency(EPTE)were firstly proposed by considering both the external quantum efficiency of TF poly-Si solar cell and scattering properties of light trapping *** EPTF,EPTE and scattering spectrum exhibit different behaviors depending on the geometric size and density of nanoshells that form the light trapping *** an optimum size and density of SiO2/Au nanoshell light trapping layer,the EPTE could reach up to 40%due to the enhancement of light trapping over a broad spectral range,especially from 500 to 800 nm.

关键词： thin film poly-crystalline silicon surface plasmons SiO2/Au nanoshell

Structure design of nano-TiO2 electrode in dye-sensitized solar cells

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Structure design of nano-TiO2 electrode in dye-sensitized so...

2007亚洲光电子会议固态照明与太阳能技术分会场

作者： Ning Cai* Ying Zhao Changchun Wei Jian Sun Shaozhen Xiong institute of photoelectronic thin film device & technology Tianjin municipal key laboratory of photoelectronic thin film device & technology nankai university Tianjin 300071 china

In dye-sensitized solar cells （DSSCs）, the physical properties and microstructure of nano-titanium dioxide film electrode are the key factors to influence the photo-electric characters greatly and they are also determined by the preparation techniques. A new electrode of double-layer TiO2 with different structure was designed and prepared by spin-coating and screen-printing techniques alternately. Such two types of layers have different contribution to the photo-electric conversion functions. Compact TiO2 film made by spin-coating only absorbs little dyes, but it works as a barrier layer between ITO and electrolyte. The porous TiO2 film made by screen-printing will absorb more dyes, and results in higher photocurrent. At the end, the effect of the compact layer on I-V properties of the DSSCs was discussed.

关键词： dye-sensitized solar cell TiO2 electrode spin-coating technique