NOVELTY - The method comprises preparing a first substrate that includes a high temperature resistant substrate, a porous layer (106) including metal oxide nanoparticles, an adhesive layer (104) and a flexible transparent substrate (102), separating the high temperature resistant substrate from the first substrate by a transfer method to prepare a second substrate that includes the flexible transparent substrate and the adhesive layer and the porous layer disposed on the flexible transparent substrate, and forming a conductive non-metal film on a side of the porous layer.    USE - The method is useful for manufacturing a flexible photoelectrode, which is useful in a dye-sensitized solar cell (claimed) and as a semiconductor electrode, where the flexible dye-sensitized solar cell is useful as a part of an auto-chargeable battery for mobile phones and personal computers (PCs) such as wearable PCs.    ADVANTAGE - The method is capable of easily and economically manufacturing the photoelectrode with high stability and electrical conductivity, increased flexibility and durability and improved chemical resistance thus enhancing performance and photoelectric conversion efficiency of the solar cell.    DETAILED DESCRIPTION - The method comprises preparing a first substrate that includes a high temperature resistant substrate, a porous layer (106) including metal oxide nanoparticles, an adhesive layer (104) and a flexible transparent substrate (102), separating the high temperature resistant substrate from the first substrate by a transfer method to prepare a second substrate that includes the flexible transparent substrate, the adhesive layer and the porous layer disposed on the flexible transparent substrate, forming a conductive non-metal film on a side of the porous layer and the adhesive layer and on a top of flexible transparent substrate of the second substrate to prepare a third substrate including the flexible transparent substrate, the adhesive layer, the porous layer and a conductive non-metal film that are formed on the flexible transparent substrate, and adsorbing a dye on a surface of the porous layer of the third substrate. The step of preparing the first substrate comprises forming the porous layer including metal oxide nanoparticles on one side of the high temperature resistant substrate and sequentially disposing the adhesive layer and the flexible transparent substrate on the porous layer including metal oxide nanoparticles, followed by hot press of the substrate. The porous layer is formed by coating one side of the high temperature resistant substrate with a paste containing metal oxide nanoparticles, a binder and a solvent and by heat-treatment at a temperature of 450-500 degrees C for 1-2 hours. The high temperature resistant substrate includes a glass substrate, a ceramic substrate, plastic substrate or a metal substrate. The step of preparing the second substrate comprises immersing the first substrate in an hydrogen fluoride (HF) solution/an acid solution to separate the high temperature resistant substrate from the first substrate, transferring the porous layer and the adhesive layer to the flexible transparent substrate, and separating the high temperature resistant substrate by applying a physical force to the first substrate. A volume ratio of HF and water in the HF solution is 1:99-100:0. The conductive non-metal film is formed by sputtering, cathode deposition, evaporation, e-beam evaporation, chemical vapor deposition, atomic layer deposition, electrochemical deposition, spin coating, spray coating, doctor blade coating, or screen printing methods. The adhesive layer is formed using a paste containing a thermal fusion polymer film or a thermal fusion polymer resin. The step of adsorbing the dye comprises immersing the third substrate in a solution containing a photosensitive dye for 1-24 hours to adsorb the dye to the metal oxide nanoparticles of the third substrate. INDEPENDENT CLAIMS are included for:    (1) a flexible photoelectrode; and    (2) a flexible dye-sensitized solar cell.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a method for manufacturing a flexible photoelectrode.    Flexible transparent substrate (102)    Adhesive layer (104)    Porous layer (106)    Counter electrode (110)    Electrolyte. (120)