摘要:
A solid-state hole transport composite material (ssHTM) is provided made from a p-type organic semiconductor and a dopant material serving as a source for either sodium (Na+) or potassium (K+) ions. The p-type organic semiconductor may be molecular (a collection of discrete molecules, that are either chemically identical or different), oligomeric, polymeric materials, or combinations thereof. In one aspect, the p-type organic semiconductor is 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD). The dopant material is an inorganic or organic material salt. A solid-state dye-sensitized solar cell (ssDSC) with the above-described ssHTM, is also provided.
摘要:
Methods are provided for fabricating a solution-processed metal and mixed-metal selenide semiconductor using a selenium (Se) film layer. One aspect provides a conductive substrate and deposits a first Se film layer over the conductive substrate. A first solution, including a first material set of metal salts, metal complexes, or combinations thereof, is dissolved in a solvent and deposited on the first Se film layer. A first intermediate film comprising metal precursors is formed from corresponding members of the first material set. In one aspect, a plurality of intermediate films is formed using metal precursors from the first material set or a different material set. In another aspect, a second Se film layer is formed overlying the intermediate film(s). Thermal annealing is performed in an environment including hydrogen (H2), hydrogen selenide (H2Se), or Se/H2. The metal precursors are transformed in the intermediate film(s), and a metal selenide-containing semiconductor is formed.
摘要:
A solid-state hole transport composite material (ssHTM) is provided. The ssHTM is made from a neutral charge first p-type organic semiconductor, and a chemically oxidized first p-type semiconductor, where the dopants are silver(I) containing materials. A reduced form of the silver(I) containing material is also retained as functional component in the ssHTM. In one aspect, the silver(I) containing material is silver bis(trifluoromethanesulfonyl)imide (TFSI). In another aspect, the first p-type organic semiconductor is 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD). In one variation, the ssHTM additionally includes a first p-type organic semiconductor doped with an ionic dopant such as lithium (Li+), sodium (Na+), potassium (K+), or combinations of the above-mentioned materials. Also provided are a method for synthesizing the above-described ssHTM, and a solid-state dye solar cell (ssDSC) fabricated from the ssHTM.