NOVELTY - A polymer composition comprises a conducting polymer; and a first ionomer.    USE - The polymer composition is used for forming a conducting film of an electronic or opto-electronic device. The conducting film is used as a charge injection layer to inject holes or electrons into a light emitting layer of an OELD, as an electrode or an electrode buffer layer of organic solar cell, or as an electrode material of organic transistor. (All claimed)    ADVANTAGE - The optoelectronic device including the composition has improved device performance such as device efficiency and lifetime.    DETAILED DESCRIPTION - A polymer composition, comprises a conducting polymer; and a first ionomer of formula -(A(R1)(R2)-B(R3)(R4)-(X)a)m-(A'(R1')(R2')-B'(R3')(R4')-(X')b)n- (1).    m,n=0-10000000;    a,b=0-20;    A,B,A',B'=C, Si, Ge, Sn or Pb;    R1-R4,R1'-R4'=H; halo; nitro; cyano; or amino, 1-30C alkyl, 1-30C heteroalkyl, 1-30C alkoxy, 1-30C heteroalkoxy, 6-30C aryl, 6-30C arylalkyl, 6-30C aryloxy, 2-30C heteroaryl, 2-30C heteroarylalkyl, 2-30C heteroaryloxy, 5-20C cycloalkyl, 2-30C heterocycloalkyl, 1-30C alkylester, 1-30C heteroalkylester, 6-30C arylester, or 2-30C heteroarylester, all optionally substituted; and R1, R2, R3, and/or R4 is ionic group or includes ionic group;    X,X'=single bond; O; S; or 1-30C alkylene, 1-30C heteroalkylene, 6-30C arylene, 6-30C arylalkylene, 2-30C heteroarylene, 2-30C heteroarylalkylene, 5-20C cycloalkylene, 5-30C heterocycloalkylene, 6-30C arylester, or 2-30C heteroarylester, all optionally substituted.    At least one of R1-R4 is a hydrophobic functional group having a halogen element when n=0. INDEPENDENT CLAIMS are also included for:    (A) a conducting film formed from the composition;    (B) an opto-electronic device comprising the conducting film;    (C) an electronic device comprising the conducting film formed of a conducting polymer doped with a first ionomer (1); and    (D) an organic electroluminescent device (OELD), comprising a first electrode; a second electrode; an emissive layer between the first electrode and the second electrode; and a hole injection layer between the first electrode and the emissive layer, the hole injection layer formed of a conducting polymer doped with a first ionomer (1).    DESCRIPTION OF DRAWING(S) - The figures are graphs illustrating the efficiency characteristics of OELD.