第46卷第1期2023年2月电子器件ChineseJournalofElectronDevicesVol.46No.1Feb.2023项目来源:国家自然科学基金(61804069);江苏省大学生创新训练重点项目(202113573066Y);金陵科技学院校级科教融合项目(2020KJRH43)收稿日期:2021-09-17修改日期:2021-12-14EffectofBiDopingonthePropertiesofCu2ZnSnS4ThinFilmsPreparedbySol-GelMethod*JIShanyin1,2,WANGWei1,2*,PENGZhaoquan1,2,WANGJiawen1,2,BAIHang1,2,SUNLuanhong1,2,HUXuemin1,2(1.SchoolofMaterialsEngineering,JinlingInstituteofTechnology,NanjingJiangsu211169,China;2.NanjingkeyLaboratoryofOptometricMaterialsandTechnology,NanjingJiangsu211169,China)Abstract:Cu2ZnSnS4(CZTS)thinfilmsolarcellshavebeenwidelystudiedduetoitsadvantagessuchasoptimalbandgap,abundantcomponents,andhightheoreticalconversionefficiency.Bi-dopedCZTSthinfilmsarepreparedbyusingsol-gelmethod.TheeffectsofBidopingamountonmicrostructure,phasestructure,andoptoelectronicpropertiesofthinfilmsareinvestigated.Theresultsshowthattheas-preparedthinfilmsareCZTSwithkesteritestructure.ThedopingofBielementhasagreatinfluenceonthemorphologyofthinfilms.Thegrainsizeincreasesatfirstandthendecreases,andthethinfilmsbecomedenserandmoreuniform.TheopticalbandgapoftheCZTSthinfilmsshowsanupwardtrendwiththeincreaseofBidopingcontent.Thephotocurrentresponsefirstincreasesandthende-creases.Whenthedopingconcentrationis1%,thecomprehensiveperformanceofCZTSthinfilmsisthebest.Keywords:Cu2ZnSnS4thinfilms;Sol-gelmethod;Bidoping;optoelectronicpropertiesEEACC:0550;8420doi:10.3969/j.issn.1005-9490.2023.01.042Bi掺杂对溶胶-凝胶法制备Cu2ZnSnS4薄膜性能影响的研究*季善银1,2,王威1,2*,彭兆泉1,2,王佳文1,2,柏航1,2,孙孪鸿1,2,胡学敏1,2(1.金陵科技学院材料工程学院,江苏南京211169;2.南京市视光材料与技术重点实验室,江苏南京211169)摘要:Cu2ZnSnS4(CZTS)薄膜太阳电池因其具有较佳带隙、组成元素丰富、理论转换效率高等优点,而被广泛研究。采用溶胶-凝胶法制备了Bi掺杂的CZTS薄膜,研究了Bi掺杂量对薄膜的微观形貌、物相结构和光电性能的影响。研究结果表明,所制备的薄膜为锌黄锡矿结构的CZTS。B...