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OPVCs require electrodes with properties tha tinclude high transparency, good conductivity and smooth surface.The degree to which a transparent conductor possesses these properties affects the performance of OPVCs greatly. Due to ITO¡¯s high optical transparency,it is widely used as transparent electrodes and substrate in OPVCs.While ITO elec- trodes present many advantages in the OPVCs fabrication,its limited flexibility makes it less suitable for the substrates that call for better elasticity.The stability between the organic materials and the ITO surface is also less than satisfactory.In addition, indium is a scarce and expensive element that can hurdle the large-scale OPVC production . On top of these disadvantages, the ITO electrode is fabricated via costly and energy-intensive vacuum-based sputtering . The recently reported alternatives of transparent electrodes that have the potential to resolve the issue of the vacuum-based evaporation with large equipment and operating costs include poly with metalgrids , carbonnanotubes , graphene , and silver nanowires .These alternatives can be fabricated via inkjet printing,screen printing,slot-diecoating,or other economical processes.Other candidates for ITO-free transparent conductors include semitransparent or patterned metal layers,doped metal oxides, conductive polymers,and metal nanowires.Christopher et al. have conducted a life cycle and cost analysis of several promising ITO-free transparent conductors and demonstrated that replacing ITO with analternative transparent conductor tends to reduce energy pay-back time and OPVC module cost. |
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OPVCs require electrodes with properties tha tinclude high transparency, good conductivity and smooth surface.The degree to which a transparent conductor possesses these properties affects the performance of OPVCs greatly. ÓлúÌ«ÑôÄÜµç³Ø±ØÐë¾ß±¸ÒÔÏÂÈý¸öÌØÐÔ£º¸ß͸Ã÷ÐÔ¡¢Á¼ºÃµÄµ¼µçÐÔÒÔ¼°¹â»¬µÄ±íÃæ¡£Ò»¸öÓÐÕâÐ©ÌØÐÔµÄ͸Ã÷µ¼Ì弫´óµØÓ°ÏìÁËÓлúÌ«ÑôÄÜµç³ØµÄÐÔÄÜ¡£ Due to ITO¡¯s high optical transparency,it is widely used as transparent electrodes and substrate in OPVCs. ITOµÄ¸ß¹âѧ͸Ã÷¶ÈʹµÃÆä¹ã·ºÔËÓÃ×÷ÓлúÌ«ÑôÄÜµç³ØµÄ͸Ã÷µç¼«ºÍ³Äµ×¡£ While ITO electrodes present many advantages in the OPVCs fabrication,its limited flexibility makes it less suitable for the substrates that call for better elasticity. ¾¡¹ÜITO³Äµ×ÔÚÓлúÌ«ÑôÄÜµç³ØµÄÉú²úÖÆÔì·½Ãæ³ÊÏÖ³öºÜ¶àÓÅÊÆ£¬µ«ËüµÄÓÐÏÞÑÓÕ¹ÐÔÖÆÔ¼ÁËÆä×÷ΪҪÇ󼫺õ¯ÐԵijĵÄÓ¦Óᣠ~~~ |
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