【摘要】 用电沉积法制备ｎ—ＣｄＴｅ薄膜，可降低半导体材料的消耗和生产费用，对降低太阳电池成本具有很大吸引力。本文通过不同衬底和不同阴极电位电沉积制备ＣｄＴｅ薄膜，进行不同温度下的热处理。对多晶ＣｄＴｅ薄膜做了ＸＲＤ分析，并在由ＣｄＴｅ薄膜作光电极，碳棒为对电极，多硫氧化还原体系Ｎａ２Ｓ＋ＮａＯＨ＋Ｓ溶液作为电解液的光电学电池中做光电Ｉ——Ｖ特性测量，发现以Ｎｉ作衬底及阴极沉积电位－０．６７—－０．７０Ｖ（对照ＳＣＥ）下沉积出的ＣｄＴｅ薄膜光电性能较好，如对薄膜进一步在马福炉中２５０°下供烤１５—４５分钟，其光电转换效率将得到进一步提高。更多还原

【Abstract】 Adopting the cathodic deposition techhique to prepare n-CdTe thinfilm makes it possible to reduce the raw material consumption and itsprocessing cost and,accordingly,the cost of solar cell manufacturing,Inthis paper,the thin filn of polycrystal n-CdTe is deposited on differentsubstrates subject to varied depositing voltages.Then the n-CdTe poly-crystals yielded by catliodic deposition is heated in air at different temperatures.The properties of n CdTe thin film have been studied by meansof XRD analysis and the I-V curves are measured with n-CdTe actingas the photoelectrode,carbon-the electrode and polysulfide redox system(Na2S+S+NaOH)-thc electrolyte,It is found that the n CdTe thinfilm deposited on Ni substrate subject to 0.67-0.70 v(vs SCE ) has bet-ter solar energy conversion performance,If the film is heated in air at250℃for 15-45 minutes,its solar energy conversion efficiency can be improved even further。更多还原