Electromagnetic wave absorber and electromagnetic wave absorber-attached molded article

An electromagnetic wave absorber, comprising:

• a dielectric layer;
• a resistive layer that is disposed on one principal surface of the dielectric layer;
• and
• an electrically conductive layer that is disposed on the other principal surface of the dielectric layer and has a sheet resistance lower than a sheet resistance of the resistive layer, wherein
• the resistive layer has a sheet resistance of 200 to 600Ω/□,
• when the resistive layer is subjected to an immersion treatment in which the resistive layer is immersed in a 5 weight % aqueous solution of NaOH for 5 minutes, an absolute value of a difference between a sheet resistance of the resistive layer before the immersion treatment and a sheet resistance of the resistive layer after the immersion treatment is less than 100Ω/□, and
• when the resistive layer comprises indium oxide and tin oxide and has a polycrystalline structure, the resistive layer includes 7.5 weight % or more of tin oxide and a dopant that comprises at least one element selected from the group consisting of magnesium and titanium, and the resistive layer has a specific resistance of −5×10−4 Ω·cm or more.