NOVELTY - A conducting film composition comprises a conducting polymer, and an ionomer having a specified repeating unit.    USE - The composition is used in opto-electronic device, e.g. an organic electroluminescent device, organic solar cell, organic transistor, and organic memory device.    ADVANTAGE - The composition has a low water uptake, has a low content of by-products decomposed by reaction with electrons, and can crosslink with the conducting polymer. Polymeric materials are lightweight, easily processed, and flexible. The opto-electronic device has improved device performance, e.g. device efficiency and lifetime.    DETAILED DESCRIPTION - A conducting film composition comprises a conducting polymer; and a first ionomer having a repeating unit of formula -(-A(R1)(R2)-B(R3)(R4)-(X)a)m-(-A'(R1')(R2')-B'(R3')(R4')-(X')b)n-(-A"(R1")(R2")-B"(R3")(R4")-(X")c-)p (1).    m=greater than 0 but less than 10000000;    n=greater than 0 but less than 10000000;    p=greater than 0 but less than 10000000;    a=0-20;    b=0-20;    c=0-20;    A, B, A', B', A", B"=C, Si, Ge, Sn, or Pb;    R1-R4, R1'-R4', R1"-R4"=H, halo, nitro, optionally substituted amino, cyano, or optionally substituted (1-30C alkyl, 1-30C alkoxy, 6-30C aryl, 6-30C arylalkyl, 6-30C aryloxy, 1-30C heteroalkyl, 1-30C heteroalkoxy, 2-30C heteroaryl, 2-30C heteroarylalkyl, 2-30C heteroaryloxy, 5-20C cycloalkyl, 5-30C heterocycloalkyl, 1-30C alkylester, 1-30C heteroalkylester, 6-30C arylester group, or 6-30C heteroarylester); and    X, X', X"=single bond, O, S, or optionally substituted (1-30C alkylene, 1-30C heteroalkylene, 6-30C arylene, 6-30C arylalkylene, 2-30C heteroarylene, 2-30C heteroarylalkylene, 5-20C cycloalkylene, 2-30C heterocycloalkylene, 6-30C arylester, or 6-30C heteroarylester).    Provided that at least one of R1-R4 and R1'-R4' is an ionic group or includes an ionic group. INDEPENDENT CLAIMS are also included for:    (1) a conducting film formed from the inventive composition; and    (2) an opto-electronic device (i.e. organic electroluminescent device, an organic solar cell, an organic transistor, or an organic memory device) comprising the conducting film or an organic film comprising the composition and interposed between two electrodes.