METHOD FOR PREPARING THREE-DIMENSIONAL GRAPHENE NANO-NETWORKS AND APPLICATION THEREOF

??? ????????? (1) ?????? ?????? ???????????? ?????????(colloidal silica)??? ???????????? 3?????? ???????????? ????????? ???????????? ???????????? ??????; (2) ?????? 3?????? ???????????? ????????? ???????????? ????????? ????????? ?????? ????????? ??? ?????? ???????????? ???????????? ????????? ?????? ?????? ??????; (3) ?????? ????????? ?????? ????????? 3?????? ???????????? ????????? ???????????? ?????? ?????? ????????? 700 ?????? 1,200 ?????? ?????????????????? ????????? ???????????? ???????????????(nano-foam) ????????? ???????????? ???????????? ??????; ??? (4) ?????? ???????????? ????????? ??? ?????? ??????????????? ????????? ????????? ?????? ????????? ???????????? ????????? ????????????, 3?????? ????????? ??????-??????????????? ??????????????? ?????? ?????????, ??? ????????? ?????? 3?????? ??????????????? ????????? ???????????? ??????????????? ????????? ???????????? ?????? ??????(transfer process)?????? ?????? ?????? ????????? ????????? ?????? ?????????, ????????? ??? ????????? ????????? ?????? ????????? 3?????? ??????????????? ????????? ???????????? ??????????????? ????????????(DSSC)??? ????????? ???????????? ????????? ??? ??????.ope