Heterojunction with Organic Thin Layers on Silicon for Record Efficiency Hybrid Solar Cells

Abstract

A record power conversion efficiency of 12.2% is achieved for a hybrid organic‐inorganic Schottky solar cell using a simple and low temperature (<150 °C) process. The heterojunction diode based on a simple integration of organic thin layers and silicon promises a low cost way to fabricate high performance solar cells.

Highly Conductive PEDOT:PSS Transparent Hole Transporting Layer with Solvent Treatment for High Performance Silicon/Organic Hybrid Solar Cells

“…In recent years, silicon-organic hybrid solar cells are attracting great attention benefit from their advantages such as low-temperature spin-coating process, simple device structure, and low-cost potential [1][2][3][4][5][6][7]. Several kinds of organic materials, including conjugated polymers [1][2][3][4]8], conjugated small molecules [9,10], and fullerene derivatives [11], are used as hole or electron transporting layer in hybrid solar cells.…”

“…Several kinds of organic materials, including conjugated polymers [1][2][3][4]8], conjugated small molecules [9,10], and fullerene derivatives [11], are used as hole or electron transporting layer in hybrid solar cells. Among them, poly (3,4-ethylenedioxythiophene): polystyrene (PED-OT:PSS), a conducting polymer widely used as a hole transporting layer or metal-free electrode in organic electronic devices, has been proven to be commendable to act as a hole transporting layer in hybrid solar cells [12][13][14][15].…”

High efficiency organic/silicon hybrid solar cells with doping-free selective emitter structure induced by a WO3 thin interlayer

“…By interface organic passivation [11,12], cathode modification [13] and inorganic doping [14], a PCE over 11% can be achieved. The PEDOT:PSS/silicon hybrid solar cell is generally assumed to be a Schottky junction solar cell [15], and PEDOT: PSS serves as the metallic contact. However, it was recently reported that an inversion layer should be formed at the interface of silicon and PEDOT:PSS, which suggests that the PEDOT:PSS/silicon solar cell actually acts like a p-n junction [16].…”

The role of a LiF layer on the performance of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/Si organic-inorganic hybrid solar cells

“…[1][2][3][4][5][6][7][8][9][10][11][12] Up to now, power conversion efficiency (PCE) of approximately 10% has been reported for solar cells based on Si/poly(3-hexylthiophene), 2,2,7 0 ,7 0 -tetrakis-(N,Ndi-4-methoxyphenylamino)-9,9 0 -spirobifluorene. 5,9,13 And PCE of $11% has been achieved for Si/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) based solar cells.…”