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      氧化鋅薄膜的微觀結(jié)構(gòu)及其結(jié)晶性能研究

      2017-12-26 05:36:14陳首部
      關(guān)鍵詞:織構(gòu)晶面襯底

      陳首部,陸 軸,蘭 椿

      (中南民族大學 電子信息工程學院,武漢 430074)

      氧化鋅薄膜的微觀結(jié)構(gòu)及其結(jié)晶性能研究

      陳首部,陸 軸,蘭 椿

      (中南民族大學 電子信息工程學院,武漢 430074)

      以普通玻璃作為襯底材料,采用射頻磁控濺射方法制備了氧化鋅(ZnO)透明導電薄膜,通過X射線衍射(XRD)和X射線光電子能譜(XPS)測試,研究了襯底溫度對薄膜微觀結(jié)構(gòu)及其結(jié)晶性能的影響.結(jié)果表明:所制備的ZnO薄膜均為(002)晶面擇優(yōu)取向生長的多晶薄膜,其微觀結(jié)構(gòu)和結(jié)晶性能與襯底溫度密切相關(guān).襯底溫度對ZnO薄膜的織構(gòu)系數(shù)TC(hkl)、平均晶粒尺寸、位錯密度、晶格應(yīng)變和晶格常數(shù)都具有不同程度的影響,當襯底溫度為800 K時,ZnO薄膜樣品的織構(gòu)系數(shù)TC(002)最高(4.929)、平均晶粒尺寸最大(20.91 nm)、位錯密度最小(2.289×1015line·m-2)、晶格應(yīng)變最低(2.781×10-3),具有最高的(002)晶面擇優(yōu)取向生長性和最佳的微觀結(jié)構(gòu)性能.

      氧化鋅;薄膜;微觀結(jié)構(gòu);結(jié)晶性能

      作為第三代新型半導體材料的主要代表之一,氧化鋅(ZnO)不僅自然儲量豐富、價格低廉、綠色環(huán)保,同時還具有優(yōu)異的光電、光敏、壓電和壓敏等性質(zhì).它與硫化鋅(ZnS)和氮化鎵(GaN)相比,ZnO在室溫條件下具有較寬的直接帶隙和較高的自由激子結(jié)合能,是制備光電功能器件的優(yōu)良材料,已被廣泛應(yīng)用于太陽能電池[1-5]、發(fā)光顯示器[6-11]、半導體激光器[12]、紫外探測器[13]、聲表面波器件[14]以及觸摸控制面板[15]等領(lǐng)域具有廣闊的應(yīng)用前景.

      目前,制備ZnO薄膜的方法多種多樣,如水熱法[16]、溶膠-凝膠法[17]、化學氣相沉積法[18]、原子層沉積法[19]、脈沖激光沉積法[20]、噴霧熱分解法[21]和磁控濺射法[22-25]等,其中磁控濺射技術(shù)具有工藝簡單、成膜均勻、致密性好、成本低廉、易于大面積制備等優(yōu)點,因此得到了業(yè)界的廣泛應(yīng)用.ZnO薄膜的晶體質(zhì)量及其性能與其制備工藝參數(shù)密切相關(guān),其中影響較大的工藝因素有襯底溫度、濺射功率和工作壓強等,因此深入研究濺射工藝參數(shù)對ZnO薄膜微觀結(jié)構(gòu)的影響具有十分重要的意義.本文以普通玻璃作為襯底材料,采用射頻磁控濺射方法制備ZnO薄膜樣品,通過X射線衍射(XRD)和X射線光電子能譜(XPS)測試表征,研究了襯底溫度對ZnO薄膜微觀結(jié)構(gòu)及其結(jié)晶性能的影響.

      1 實驗部分

      1.1 襯底處理

      采用普通玻璃作為襯底材料,切割成大小為30 mm×30 mm的方塊,實驗時按照如下程序?qū)ΣAбr底進行處理:(1)采用丙酮擦拭襯底表面,并用清水沖洗干凈;(2)依次使用丙酮、無水乙醇和純凈水對襯底進行超聲清洗13 min,以去除襯底表面的微粒和有機污染物;(3)在無水乙醇中煮沸,吹干待用.

      1.2 樣品制備

      利用射頻磁控濺射方法在玻璃襯底上制備ZnO薄膜樣品,所用實驗設(shè)備為KDJ-567型高真空復合鍍膜系統(tǒng),濺射源為直徑50 mm、厚度4 mm的ZnO陶瓷靶材,它以ZnO粉體(999.99%)為原料通過常壓固相燒結(jié)工藝制成.濺射制備ZnO薄膜樣品之前,將濺射室的真空度抽至5×10-4Pa后通入99.999%的高純氬氣作為工作氣體,并先采用氬等離子體對玻璃襯底表面清洗7 min,然后再預濺射10 min以清潔靶材表面和穩(wěn)定系統(tǒng),提高沉積ZnO薄膜樣品的質(zhì)量.實驗時,襯底與靶材之間的距離為75 mm、濺射功率為200 W、工作氣壓為0.5 Pa、沉積時間為25 min、襯底溫度為600~800 K.

      1.3 樣品表征

      通過X射線衍射儀(Bruker advance D8型,德國Bruker公司)對ZnO薄膜樣品進行晶體結(jié)構(gòu)表征,測試時使用Cu Kα射線源(波長λ=0.1541 nm),采用θ-2θ連續(xù)掃描方式,掃描速度為10°/min,掃描步長為0.0164 ?,掃描范圍為20°≤2θ≤70°,工作電壓為40 kV,工作電流為40 mA.利用X射線光電子能譜儀(VG Multilab 2000型,美國Thermo Electron公司)對ZnO薄膜樣品進行XPS分析,測試時本底真空度為2.0×10-6Pa,X射線源為單色Al Kα射線源(hv=1486.60 eV),采用C 1s結(jié)合能(284.60 eV)作為內(nèi)標,對所有測試譜峰進行荷電校正.所的測試均在室溫條件下完成.

      2 結(jié)果與討論

      圖1為不同襯底溫度時ZnO薄膜樣品的XRD圖譜,由圖可見,在2θ為20 °~70°的掃描范圍內(nèi),所有ZnO薄膜樣品在峰位2θ為30.9°和34.1°附近都出現(xiàn)了2個特征峰,比對ZnO的標準PDF卡片(JCPDS #36-1451,見圖1)可以看出,這2個衍射峰分別與ZnO的(100)和(002)晶向相吻合.

      圖1 ZnO薄膜樣品的XRD圖譜Fig.1 XRD patterns of the ZnO samples

      另外從圖1中還可看到,襯底溫度不同時,ZnO薄膜樣品還存在有其它晶向的特征峰,如襯底溫度為600和800 K時,分別顯示有(110)和(103)晶面的衍射峰,而襯底溫度為700 K時,則顯示有(110)、(102)和(103)等多個晶面的衍射峰.上述XRD圖譜結(jié)果表明,所制備的ZnO樣品均為多晶薄膜,并具有六角纖鋅礦結(jié)構(gòu).觀察圖1的XRD圖譜還可以看出,襯底溫度對衍射峰位2θ的影響較小,而對各個晶向的衍射峰強度的影響較大,為了評估ZnO薄膜樣品沿某一晶面(hkl)的擇優(yōu)取向程度,本文采用織構(gòu)系數(shù)(TC(hkl))來定量表征樣品沿不同晶面生長的取向程度.織構(gòu)系數(shù)TC(hkl)定義如下[26]:

      (1)

      (1)式中,下標h、k、l表示密勒指數(shù),TC(hkl)表示(hkl)晶面的織構(gòu)系數(shù),I(hkl)為ZnO薄膜樣品在(hkl)晶面的衍射強度,Ir(hkl)為標準ZnO粉未試樣(JCPDS #36-1451)在(hkl)晶面的衍射強度,n為計算時所取的衍射峰數(shù)目.TC(hkl)的數(shù)值越大,說明薄膜中有更多的晶粒沿(hkl)晶面生長,即薄膜在(hkl)晶面的擇優(yōu)取向性越好.表1列出了不同襯底溫度時ZnO薄膜樣品的織構(gòu)系數(shù)TC(hkl),由表1可見,當襯底溫度為600、700和800 K時,ZnO薄膜樣品的TC(002)值分別為4.916、4.363和4.929,均遠遠高于其它晶面的TC(hkl)數(shù)值,這說明所制備的ZnO樣品都表現(xiàn)出明顯的(002)晶面擇優(yōu)取向生長特征,并且襯底溫度升高時,TC(002)的數(shù)值呈現(xiàn)出先減小后增大的變化趨勢.可見,襯底溫度從600 K增加到800 K時,雖然沒有改變ZnO薄膜(002)擇優(yōu)取向生長特征,但是對其擇優(yōu)取向程度有一定的影響,當襯底溫度為800 K時所制備的ZnO樣品具有最高的(002)擇優(yōu)取向程度.其原因是:ZnO薄膜在(002)晶面的表面自由能密度是最小的,因此晶粒沿(002)晶面具有生長優(yōu)勢,在生長過程中晶粒極易沿c軸即(002)晶面平行于襯底的方向生長[27,28].

      表1 ZnO薄膜樣品的織構(gòu)系數(shù)Tab.1 The values of TC(hkl) for the ZnO samples

      圖2為襯底溫度800 K時所制備ZnO薄膜樣品的XPS能譜圖,由圖2可見,XPS圖譜上除了Zn和O原子的光電子特征峰之外,在284.6 eV處還存在有C 1s特征峰,這可能是由于濺射鍍膜時油擴散泵污染或者ZnO薄膜樣品暴露在大氣中吸附了CO2所造成的[29].

      圖2 襯底溫度為700 K時所制備ZnO樣品的XPS能譜圖Fig.2 XPS spectra of the ZnO sample prepared at substrate temperature of 700 K

      圖3(a)為不同襯底溫度時ZnO薄膜樣品的(002)衍射峰半高寬(B)數(shù)值,可見半高寬B的值與襯底溫度密切相關(guān),襯底溫度增加時,半高寬B單調(diào)減小,當襯底溫度為800 K時,ZnO薄膜樣品(002)衍射峰的半高寬B最小值為0.392°,說明襯底溫度為800 K時制備的ZnO薄膜樣品具有最大的晶粒尺寸和最佳的結(jié)晶性能.ZnO薄膜樣品的平均晶粒尺寸(D)可以根據(jù)謝樂公式[30]計算:

      (2)

      (2)式中,K為謝樂常數(shù)(這里取K=0.89),θ為所(002)晶面的布拉格角,B為(002)衍射峰的半高寬數(shù)值,λ為XRD測試時的X射線波長[31].圖3(b)為不同襯底溫度時ZnO薄膜樣品的平均晶粒尺寸D,從圖中3(b)看出,襯底溫度對ZnO樣品的平均晶粒尺寸D具有明顯的影響.當襯底溫度為600~800 K時,ZnO樣品的平均晶粒尺寸D為9.73~20.91 nm,平均晶粒尺寸D隨襯底溫度增加而增大,當襯底溫度為800 K時,ZnO薄膜樣品的D值最大(20.91 nm).

      圖3 不同襯底溫度時ZnO樣品的B和DFig.3 The B and D values of the ZnO sample prepared at different substrate temperatures

      ZnO薄膜樣品的位錯密度(δ)[31]利用公式(3)計算獲得:

      (3)

      (3)式中,D為ZnO薄膜樣品的平均晶粒尺寸.ZnO薄膜樣品的位錯密度δ隨襯底溫度變化的曲線如圖4所示,可以看出,隨著襯底溫度的增加,δ呈現(xiàn)出單調(diào)減小的變化趨勢,當襯底溫度為800 K時,ZnO薄膜樣品的位錯密度δ最小為2.289×1015line·m-2.

      圖4 不同襯底溫度時ZnO樣品的δ值Fig.4 The δ values of the ZnO sample prepared at different substrate temperatures

      ZnO薄膜樣品的晶格應(yīng)變(ε)可由下式[32]計算:

      (4)

      (4)式中,K為由謝樂常數(shù),θ為所(002)晶面的布拉格角,B為(002)衍射峰的半高寬數(shù)值.不同襯底溫度時ZnO薄膜樣品的ε值如圖5所示,從圖5看出,襯底溫度對ZnO薄膜ε值具有明顯的影響,ε值隨著襯底溫度的增加而逐漸減小,當襯底溫度為800 K時,ZnO薄膜樣品具有最小的晶格應(yīng)變ε,其值為2.781×10-3.

      圖5 不同襯底溫度時ZnO樣品的ε值Fig.5 The ε values of the ZnO sample prepared at different substrate temperatures

      ZnO薄膜樣品為六角纖鋅礦結(jié)構(gòu),其晶格常數(shù)由公式(5)確定[33,34]:

      (5)

      (5)式中,a和c為ZnO樣品的晶格常數(shù).對于(002)晶面,由(5)式可得:

      (6)

      對于(100)晶面,(5)式可簡化為:

      (7)

      圖6為不同襯底溫度時ZnO薄膜樣品的晶格常數(shù)a、c和c/a的數(shù)值,從圖6看出,襯底溫度增大時,a先減后增、c單調(diào)增加、c/a先增后減,在襯底溫度的變化范圍為600~800 K時,a、c和c/a的數(shù)值范圍分別為0.32845~0.33608 nm、0.52259~0.52857 nm和1.57275~1.59411,這些結(jié)果與標準ZnO試樣(JCPDS #36-1451)數(shù)據(jù)(a=0.32498 nm、c=0.52066 nm、c/a=1.60213)是一致的.文獻[35,36]在研究摻釔ZnO和摻鋰ZnO薄膜時也有類似的報道.

      圖6 不同襯底溫度時ZnO樣品的a、c和c/aFig.6 The values of a, c and c/a for the ZnO sample prepared at different substrate temperatures

      ZnO薄膜樣品的Zn-O鍵長(L)[37]可由公式(8)計算獲得:

      (8)

      (8)式中,a和c為ZnO薄膜樣品的晶格常數(shù),u與a、c之間滿足關(guān)系式[37]:

      (9)

      圖7為ZnO樣品薄膜Zn-O鍵長L隨襯底溫度的變化曲線,從圖可知,襯底溫度對ZnO薄膜的Zn-O鍵長L具有一定的影響,當襯底溫度為600、700和800 K時,ZnO樣品的Zn-O鍵長L值分別為0.2002、0.19957和0.20337 nm,其結(jié)果與標準ZnO試樣(JCPDS No. 36-1451)數(shù)據(jù)(L=0.19778 nm)基本一致.Anandan等人[35]和Srinivasan小組[36]在研究摻雜ZnO薄膜時也報道過類似的結(jié)果.

      圖7 不同襯底溫度時ZnO樣品的L值Fig.7 The L values of the ZnO sample prepared at different substrate temperatures

      3 結(jié)語

      采用ZnO陶瓷靶為濺射源材料,利用射頻磁控濺射技術(shù)在普通玻璃襯底上制備了ZnO薄膜樣品,通過XRD和XPS測試表征,研究了襯底溫度對ZnO薄膜樣品微觀結(jié)構(gòu)及其結(jié)晶性能的影響.結(jié)果表明,所有ZnO薄膜樣品均為六角纖鋅礦結(jié)構(gòu)的多晶薄膜,并且襯底溫度對薄膜生長特性及其微觀結(jié)構(gòu)性能具有明顯的影響.襯底溫度升高時,ZnO薄膜的織構(gòu)系數(shù)TC(002)、晶格常數(shù)a和Zn-O鍵長L先減后增,平均晶粒尺寸D和晶格常數(shù)c單調(diào)增加,而位錯密度δ和晶格應(yīng)變ε則單調(diào)減小,當襯底溫度為800 K時,ZnO薄膜樣品的織構(gòu)系數(shù)TC(002)最高為4.929、平均晶粒尺寸D最大為20.91 nm、位錯密度δ最小為2.289×1015line·m-2、晶格應(yīng)變δ最低為2.781×10-3,所制備的ZnO薄膜具有最高的(002)晶面擇優(yōu)取向生長性和最好的微觀結(jié)構(gòu)性能.

      [1] Liu H, Avrutin V, Izyumskaya N, et al. Transparent conducting oxides for electrode applications in light emitting and absorbing devices [J]. Superlattices and Microstructures, 2010, 48 (5): 458-484.

      [2] Lee D, Bae W K, Park I, et al. Transparent electrode with ZnO nanoparticles in tandem organic solar cells [J]. Solar Energy Materials and Solar Cells, 2011, 95 (1): 365-368.

      [3] Bekci D R, Erten-Ela S. Effect of nanostructured ZnO cathode layer on the photovoltaic performance of inverted bulk heterojunction solar cells [J]. Renewable Energy, 2012, 43 (1): 378-382.

      [4] Sio A D, Chakanga K, Sergeev O, et al. ITO-free inverted polymer solar cells with ZnO:Al cathodes and stable top anodes [J]. Solar Energy Materials and Solar Cells, 2012, 98 (1): 52-56.

      [5] Tian C-S, Chen X-L, Ni J, et al. Transparent conductive Mg and Ga co-doped ZnO thin films for solar cells grown by magnetron sputtering: H2 induced changes [J]. Solar Energy Materials and Solar Cells, 2014 125 (1): 59-65.

      [6] Kim H, Horwitz J S, Kim W H, et al. Doped ZnO thin films as anode materials for organic light-emitting diodes [J]. Thin Solid Films, 2002, 420-421 (1): 539-543.

      [7] Cao H T, Sun C, Pei Z L, et al. Properties of transparent conducting ZnO:Al oxide thin films and their application for molecular organic light-emitting diodes [J]. Journal of Materials Science: Materials in Electronics, 2004, 14 (1): 169-174.

      [8] Kim H, Piqué A, Horwitz J S, et al. Effect of aluminum doping on zinc oxide thin films grown by pulsed laser deposition for organic light-emitting devices [J]. Thin Solid Films, 2000, 377-378 (1): 798-802.

      [9] Wang L, Swensen J S, Polikarpov E, et al. Highly efficient blue organic light-emitting devices with indium-free transparent anode on flexible substrates [J]. Organic Electronics, 2010, 11 (9): 1555-1560.

      [10] Chen M, Pei Z L, Sun C, et al. ZAO: an attractive potential substitute for ITO in flat display panels [J]. Materials Science and Engineering B, 2001, 85 (2-3): 212-217.

      [11] Yamamoto N, Makino H, Osone S, et al. Development of Ga-doped ZnO transparent electrodes for liquid crystal display panels [J]. Thin Solid Films, 2012, 520 (12): 4131-4138.

      [12] Pflumm C, Karnutsch C, Gerken M, et al. Parametric study of modal gain and threshold power density in electrically pumped single-layer organic optical amplifier and laser diode structures [J]. IEEE Journal of Quantum Electronics, 2005, 41 (3): 316-336.

      [13] Wang H,Long H,Chen Z,et al.Fabrication and characteri-

      zation of alternating-current-driven ZnO-based ultraviolet light-emitting diodes [J]. Electronic Materials Letters, 2015, 11 (4): 664-669.

      [14] Asmar R A, Atanas J P, Ajaka M, et al. Characterization and Raman investigations on high-quality ZnO thin films fabricated by reactive electron beam evaporation technique [J]. Journal of Crystal Growth, 2005, 279 (2): 394-402.

      [15] Tsay C-Y,Fan K-S,Lei C-M. Synthesis and characterization of sol-gel derived gallium-doped zinc oxide thin films [J]. Journal of Alloys and Compounds, 2012, 512 (1): 216-222.

      [16] Jin D-H, Kim D, Seo Y, et al. Morphology-controlled synthesis of ZnO crystals with twinned structures and the morphology dependence of their antibacterial activities [J]. Materials Letters, 2014, 115 (2): 205-207.

      [17] Malek M F, Mamat M H, Musa M Z, et al. Thermal annealing-induced formation of ZnO nanoparticles: Minimum strain and stress ameliorate preferred c-axis orientation and crystal-growth properties [J]. Journal of Alloys and Compounds, 2014, 610 (2): 575-588.

      [18] Martin A, Espinos J P, Justo A, et al. Preparation of transparent and conductive Al-doped ZnO thin films by ECR plasma enhanced CVD [J]. Surface & Coating and Technology, 2002, 151-152 (1): 289-293.

      [19] Oh B-Y, Kim J-H, Han J-W, et al. Transparent conductive ZnO:Al films grown by atomic layer deposition for Si-wire-based solar cells [J]. Current Applied Physics, 2012, 12 (2): 273-279.

      [20] Zhang D, Wang C, Zhang F. Oxygen pressure and measurement temperature dependence of defects related bands in zinc oxide films [J]. Vacuum, 2010, 85 (1): 160-163.

      [21] Sahay P P, Tewari S, Nath R K. Optical and electrical studies on spray deposited ZnO thin films [J]. Crystal Research Technology, 2007, 42 (5): 723-729.

      [22] Lee J, Gao W, Li Z, et al. Sputtered deposited nanocrystalline ZnO films: A correlation between electrical, optical and microstructural properties [J]. Applied Physics A, 2005, 80 (11): 1641-1646.

      [23] Jayaraj M K, Antony A, Ramachandran M. Transparent conducting zinc oxide thin film prepared by off-axis rf magnetron sputtering [J].Bulletin Materials Science, 2002, 25 (2): 227-230.

      [24] Heo G S, Gim I G, Park J W, et al. Effects of substrate temperature on properties of ITO-ZnO composition spread films fabricated by combinatorial RF magnetron sputtering [J]. Journal of Solid State Chemistry, 2009, 18 (12)2: 2937-2940.

      [25] 孫奉婁, 惠述偉. 襯底溫度對射頻濺射沉積ZAO透明導電薄膜性能的影響 [J]. 中南民族大學學報(自然科學版), 2009, 28 (2): 10-13.

      [26] Valle G G, Hammer P, Pulcinelli S H, et al. Transparent and conductive ZnO:Al thin films prepared by sol-gel dip-coating [J]. Journal of the European Ceramic Society, 2004, 24 (4): 1009-1013.

      [27] Caglar Y, Ilican S, Caglar M, et al. Effects of In, Al and Sn dopants on the structural and optical properties of ZnO thin films [J]. Spectrochimica Acta Part A, 2007, 67 (10): 1113-1119.

      [28] Lin S-S, Huang J-L. Effect of thickness on the structural and optical properties of ZnO films by r.f. magnetron sputtering [J]. Surface & Coatings Technology, 2004, 185 (2): 222- 227.

      [29] Briggs D. Handbook of X-ray and ultraviolet photoelectron spectroscopy [M]. London: Heyden & Son Ltd., 1977.

      [30] 陳首部, 孫奉婁. 基體溫度對氮化鈦涂層微觀結(jié)構(gòu)的影響 [J]. 中南民族大學學報(自然科學版), 2013, 32 (4): 59-63.

      [31] Lu Z, Long L, Zhong Z, et al. Structural characterization and optoelectrical properties of Ti-Ga co-doped ZnO thin films prepared by magnetron sputtering[J]. Journal of Materials Science: Materials in Electronics, 2016, 27 (3): 2875-2884.

      [32] Matheswaran P, Gokul B, Abhirami K M, et al. Thickness dependent structural and optical properties of In/Te bilayer thin films [J]. Materials Science in Semiconductor Processing, 2012, 15 (5): 486-491.

      [33] Pankove J I. Optical processes in semiconductors [M]. New York: Dover Publications, 1975.

      [34] Zhang T, Zhong Z. Effect of working pressure on the structural, optical and electrical properties of titanium-gallium co-doped zinc oxide thin films [J]. Materials Science-Poland, 2013, 31 (3): 454-461.

      [35] Anandan S, Muthukumaran S. Influence of Yttrium on optical, structural and photoluminescence properties of ZnO nanopowders by sol-gel method [J]. Optical Materials, 2013, 35 (12): 2241-2249.

      [36] Srinivasan G, Kumar R T R, Kumar J. Li doped and undoped ZnO nanocrystalline thin films: a comparative study of structural and optical properties [J]. Journal of Sol-Gel Science and Technology, 2007, 43 (2): 171-177.

      [37] Murtaza G, Ahmad R, Rashid M S, et al. Structural and magnetic studies on Zr doped ZnO diluted magnetic semiconductor [J]. Current Applied Physics, 2014, 14 (2): 176-181.

      MicrosructureandCrystallineCharacteristicsofZincOxideThinFilms

      ChenShoubu,LuZhou,LanChun

      (College of Electronic Information Engineering, South-Central University for Nationalities, Wuhan 430074, China)

      The transparent conducting oxide thin films of zinc oxide (ZnO) were deposited on glass substrates by radio-frequency magnetron sputtering method. The influence of substrate temperature on the mirostructure and crystalline characteristics of ZnO thin films was investigated by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. The results indicate that the deposited thin films with the hexagonal crystal structure are polycrystalline and have a strongly preferred orientation of (002) plane. The mirostructure and crystalline characteristics of the thin films are observed to be subjected to the substrate temperature. When the substrate temperature is 800 K, the deposited ZnO sample exhibits the best crystalline and microstructural properties, with the highest texture coefficient of (002) plane of 4.929, the largest average grain size of 20.91 nm, the minimum dislocation density of 2.289×1015line·m-2and the lowest lattice strain of 2.781×10-3.

      zinc oxide; thin film; microstructure; crystalline characteristics

      2017-05-28

      陳首部(1964-), 男, 高級工程師, 研究方向: 等離子體應(yīng)用技術(shù), E-mail: chensb64@sohu.com

      湖北省自然科學基金資助項目(2011CDB418)

      TM914

      A

      1672-4321(2017)04-0067-06

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