Fluoropolymer, resin film, and optoelectronic element

Provided is a fluorine-containing polymer which is suitable for vapor deposition and is capable of appropriately performing metal patterning. Also provided is a resin film comprising such a fluoropolymer as a material. Also provided is an optoelectronic element having such a resin film in the structure. The fluorine-containing polymer satisfies the following requirements (1) to (3). (1) The melting point is lower than 200 DEG C or cannot be observed. (2) The thermal weight loss ratio when the temperature is increased at a temperature increase rate of 2 DEG C/min at a pressure of 1 * 10-3 Pa is not more than 400 DEG C and substantially 100%. And (3) the temperature range from the temperature at which the thermal weight loss ratio becomes 10% to the temperature at which the thermal weight loss ratio becomes 90% is within 200 DEG C when the temperature is increased at a temperature increase rate of 2 DEG C/min under a pressure of 1 * 10-3 Pa. 提供适合于蒸镀、能够适当地进行金属图案化的含氟聚合物。另外，提供包含这种含氟聚合物作为材料的树脂膜。另外，提供在结构中具有这种树脂膜的光电子