01708nas a2200157   4500008004100000245012000041210007300161260000800234490000700242520106900249100001801318700001801336700002701354700003001381856013901411       2018                        eng d00aOne‐dimensional porphyrin‐fullerene (C60) assemblies: role of central metal ion in enhancing ambipolar mobility0 aOne‐dimensional porphyrin‐fullerene C60 assemblies role of centr  cMAR0 v243 aOne-dimensional (1D) nanostructures of -conjugated molecules exhibiting excellent charge carrier mobilities have found much interest in organic electronic devices. Even though it is tedious to form such structures, the availability of highly delocalized electron and hole carriers in these donor (D)-acceptor (A) co-assemblies realize ambipolar charge transport. Here we report the successful demonstration of a simple solution casting method to create ambipolar donor-acceptor single crystalline assembly. 1D assemblies of 5,10,15,20-tetraphenylporphyrins (H2TPP, ZnTPP) and fullerene (C60) exhibit high ambipolar mobility in the range of 0.8-3.4 cm2/Vs for electrons and holes with high ON/OFF ratio and low threshold voltage. A direct experimental proof for the pivotal role of central Zn2+ in tetraphenyl porphyrin, which enables a strong D-A charge transfer interaction in the cocrystal and thereby induces electron (1.35 cm2/Vs), hole (3.42 cm2/Vs) mobilities, the highest reported for two component D-A assemblies using solution casting, is demonstrated.1 aGoudappagouda1 aGedda, Murali1 aKulkarni, Giridhar, U.1 aSukumaran, Santhosh, Babu  uhttps://library.ncl.res.in/content/one%E2%80%90dimensional-porphyrin%E2%80%90fullerene-c60-assemblies-role-central-metal-ion-enhancing