Evaporation source and evaporation device

An evaporation source, comprising:

• a heat source structure and an evaporation container for accommodating a to-be-evaporated material;
• wherein the heat source structure comprises a heat source and a thermal conductor in contact with the evaporation container;
• the heat source is at the thermal conductor with a heat transfer path defined from the heat source to the evaporation container, and the heat transfer path passes through at least a portion of the thermal conductor;
• wherein the thermal conductor comprises a first portion and a second portion;
• the second portion is of a hollow, cylindrical shape, and a hollow portion of the second portion defines a first accommodation space;
• the evaporation container is in the first accommodation space;
• and
• wherein the first portion is in the first accommodation space and includes a plurality of spaced thermally conductive sheets;
• each thermally conductive sheet is on an inner wall of the second portion and is perpendicular to the inner wall of the second portion;
• and each thermally conductive sheet abuts against the evaporation container;
• wherein the evaporation source further includes a cooling structure configured to cool the evaporation container during or after a heating process;
• the cooling structure is disposed in the thermally conductive sheets.