有機無機異質接面太陽能電池

Abstract

在近幾年來，矽與有機導電高分子作結合之混成異質接面太陽能電池在混合型太陽能電池已成主流， 本文中的有機導電高分子選用PEDOT:PSS當P介面，分別製作出Si/PEDOT:PSS的異質接面太陽能電池、GaAs/PEDOT:PSS的異質接面太陽能電池。 在論文中的第一部分， 用旋轉塗佈機把PEDOT:PSS塗佈在不同的品質、不同的厚度的矽晶圓上，比較其塗佈在平面矽晶圓上的效率，最高轉換效率為9.76%。 在論文的第二部份， 我們知道典型的三五族砷化鎵太陽能電池只需數微米（μm）的厚度就可以吸收大部份的入射光。我們用分子束磊晶長一層厚度為2000奈米的吸收層在重參雜的砷化鎵上，再將PEDOT:PSS直接旋塗上去後，成功製作出異質接面太陽能電池，其效率最好可達9.874%。

Over the past few years, hybrid devices based on conjugated polymer/silicon heterojunction structures .In this paper, hybrid solar cell based on poly(3,4-ethylene- dioxythiophene):polystyrenesulfonate (PEDOT:PSS) directly spin-coating on n-type silicon wafer and n-type GaAs wafer. In the first part, a hybrid PEDOT:PSS/silicon heterojunction solar employed several n-type silicon substrate with different quality and thickness .Compared to the planar PEDOT:PSS/silicon cells,the maximal power conversion efficiency under AM 1.5 global one sun illumination is 9.76%. In the second part,A typical III–V solar cell requires a thickness of several micrometers to absorb all of the incoming photons. We present 3000-nm-thick GaAs absorbing layer based on heavily-doping GaAs grown by Molecular beam epitaxy ,coated with PEDOT:PSS. The highest power conversion efficiency under AM 1.5 global one sun illumination is 9.874%.