光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2015年
2期
320-324
,共5页
张立祥%冯良桓%王文武%徐航%武莉莉%张静全%李卫%曾广根
張立祥%馮良桓%王文武%徐航%武莉莉%張靜全%李衛%曾廣根
장립상%풍량환%왕문무%서항%무리리%장정전%리위%증엄근
ZnS%磁控溅射%CdTe太阳电池%量子效率
ZnS%磁控濺射%CdTe太暘電池%量子效率
ZnS%자공천사%CdTe태양전지%양자효솔
ZnS%magnetron sputtering%CdTe solar cell%Quantum efficiency
采用磁控溅射法制备了ZnS／CdS复合窗口层，并将其应用于 CdTe 太阳能电池。对所制备薄膜的形貌和结构等进行了研究。测试了具有不同窗口层的CdTe太阳电池的量子效率和光Ⅰ-Ⅴ特性，分析了ZnS薄膜制备条件对CdTe电池器件性能影响；研究了CdS薄膜厚度和ZnS／CdS 复合窗口层对短波区透过率以及CdTe太阳电池的光谱响应的影响。着重研究了具有ZnS／CdS复合窗口层的CdTe太阳电池的短波光谱响应。结果表明，CdS窗口层厚度从100 nm减至50 nm后，其对短波区光子透过率平均提高了18．3％，CdTe太阳电池短波区光谱响应平均提高了27．6％。衬底温度250℃条件下制备的ZnS晶粒尺寸小于室温下制备的ZnS。具有ZnS／CdS复合窗口层的CdTe电池中，采用衬底温度250℃沉积ZnS薄膜来制备窗口层的电池器件，其性能要优于室温下沉积ZnS制备窗口层的电池器件。这说明晶粒尺寸的大小对电子输运有一定影响。在相同厚度CdS的前提下，具有ZnS／CdS复合窗口层的CdTe电池比具有CdS窗口层在短波的光谱响应提高了约2％。这说明ZnS／CdS复合窗口层能够做到减少对短波光子的吸收，从而使更多的光子被CdTe电池的吸收层吸收。
採用磁控濺射法製備瞭ZnS／CdS複閤窗口層，併將其應用于 CdTe 太暘能電池。對所製備薄膜的形貌和結構等進行瞭研究。測試瞭具有不同窗口層的CdTe太暘電池的量子效率和光Ⅰ-Ⅴ特性，分析瞭ZnS薄膜製備條件對CdTe電池器件性能影響；研究瞭CdS薄膜厚度和ZnS／CdS 複閤窗口層對短波區透過率以及CdTe太暘電池的光譜響應的影響。著重研究瞭具有ZnS／CdS複閤窗口層的CdTe太暘電池的短波光譜響應。結果錶明，CdS窗口層厚度從100 nm減至50 nm後，其對短波區光子透過率平均提高瞭18．3％，CdTe太暘電池短波區光譜響應平均提高瞭27．6％。襯底溫度250℃條件下製備的ZnS晶粒呎吋小于室溫下製備的ZnS。具有ZnS／CdS複閤窗口層的CdTe電池中，採用襯底溫度250℃沉積ZnS薄膜來製備窗口層的電池器件，其性能要優于室溫下沉積ZnS製備窗口層的電池器件。這說明晶粒呎吋的大小對電子輸運有一定影響。在相同厚度CdS的前提下，具有ZnS／CdS複閤窗口層的CdTe電池比具有CdS窗口層在短波的光譜響應提高瞭約2％。這說明ZnS／CdS複閤窗口層能夠做到減少對短波光子的吸收，從而使更多的光子被CdTe電池的吸收層吸收。
채용자공천사법제비료ZnS／CdS복합창구층，병장기응용우 CdTe 태양능전지。대소제비박막적형모화결구등진행료연구。측시료구유불동창구층적CdTe태양전지적양자효솔화광Ⅰ-Ⅴ특성，분석료ZnS박막제비조건대CdTe전지기건성능영향；연구료CdS박막후도화ZnS／CdS 복합창구층대단파구투과솔이급CdTe태양전지적광보향응적영향。착중연구료구유ZnS／CdS복합창구층적CdTe태양전지적단파광보향응。결과표명，CdS창구층후도종100 nm감지50 nm후，기대단파구광자투과솔평균제고료18．3％，CdTe태양전지단파구광보향응평균제고료27．6％。츤저온도250℃조건하제비적ZnS정립척촌소우실온하제비적ZnS。구유ZnS／CdS복합창구층적CdTe전지중，채용츤저온도250℃침적ZnS박막래제비창구층적전지기건，기성능요우우실온하침적ZnS제비창구층적전지기건。저설명정립척촌적대소대전자수운유일정영향。재상동후도CdS적전제하，구유ZnS／CdS복합창구층적CdTe전지비구유CdS창구층재단파적광보향응제고료약2％。저설명ZnS／CdS복합창구층능구주도감소대단파광자적흡수，종이사경다적광자피CdTe전지적흡수층흡수。
ZnS/CdS composite window layer was prepared by magnetron sputtering method and then applied to CdTe solar cell. The morphology and structure of films were measured.The data of Ⅰ-Ⅴ in light and the quantum efficiency of CdTe solar cells with different window layers were also measured.The effect of ZnS films prepared in different conditions on the performance of CdTe solar cells was researched.The effects of both CdS thickness and ZnS/CdS composite layer on the transmission in short wavelength were studied.Particularly,the quantum efficiency of CdTe solar cells with ZnS/CdS window layer was measured. The results show as follows.With the thickness of CdS window layer reducing from 100 to 50 nm,the transmission increase 18. 3% averagely in short wavelength and the quantum efficiency of CdTe solar cells increase 27. 6% averagely.The grain size of ZnS prepared in 250 ℃ is smaller than prepared at room temperature.The performance of CdTe solar cells with ZnS/CdS win-dow layer is much better if ZnS deposited at 250 ℃.This indicates grain size has some effect on the electron transportation. When the CdS holds the same thickness,the transmission of ZnS/CdS window layer was improved about 2%in short wavelength compared with CdS window layer.The quantum efficiency of CdTe solar cells with ZnS/CdS window layer was also improved a-bout 2% in short wavelength compared with that based on CdS window layer.These indicate ZnS/CdS composite window layer can increase the photon transmission in short wavelength so that more photons can be absorbed by the absorbent layer of CdTe solar cells.
