Improved Performance of Perovskite Solar Cells by Suppressing the Energy-Level Shift of the PEDOT:PSS Hole Transport Layer

被引：7

作者：

Yahiro, Masayuki ^{[2
,3
]}

Sugawara, Shun ^{[1
]}

Maeda, Shinichi ^{[1
]}

Shimoi, Yuko ^{[2
]}

Wang, Pangpang ^{[2
]}

Kobayashi, Shin-ichiro ^{[3
]}

Takekuma, Kotaro ^{[4
]}

Tumen-Ulzii, Ganbaatar ^{[4
,5
,6
]}

Qin, Chuanjiang ^{[6
,7
]}

Matsushima, Toshinori ^{[5
,6
]}

Isaji, Tadayuki ^{[1
]}

Kasai, Yoshinori ^{[1
]}

Fujihara, Takashi ^{[2
,3
]}

Adachi, Chihaya ^{[2
,3
,4
,5
,6
]}

机构：

[1] Nissan Chem Corp, Tokyo 1036119, Japan

[2] Inst Syst Informat Technol & Nanotechnol ISIT, Fukuoka Ind Acad Symphonic FiaS, Nishi Ku, Fukuoka 8190388, Japan

[3] Fukuoka i3 Ctr Organ Photon & Elect Res i3 Opera, Nishi Ku, Fukuoka 8190388, Japan

[4] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, Fukuoka 8190395, Japan

[5] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan

[6] Japan Sci & Technol Agcy JST, ERATO, Adachi Mol Exciton Engn Project, Fukuoka 8190395, Japan

[7] Chinese Acad Sci, Changchun Inst Appl Chem CIAC, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

ACS APPLIED ENERGY MATERIALS | 2021年 / 4卷 / 12期

基金：

日本科学技术振兴机构;

关键词：

perovskite solar cell; PEDOT:PSS; TEOS; siloxane; reduction; hole extraction; HALIDE PEROVSKITES; EFFICIENT; LIGHT; STABILITY; TEOS; MECHANISMS; CHALLENGES; VOLTAGE; FILMS;

D O I：

10.1021/acsaem.1c03213

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In inverted architectures of perovskite solar cells (PSCs), poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been widely used as the hole transport layer (HTL). An issue occurring in such PSCs is that the hole transport level of PEDOT:PSS shifts upward since methylammonium iodide (MAI) used for the perovskite structure organization interacts with the underlying PEDOT:PSS HTL as a reducing agent, which impedes hole extraction and therefore lowers the performance of PSCs. To overcome this issue, we demonstrate a way of adding tetraethoxysilane (TEOS) into a water-based PEDOT:PSS solution. The HTL spin-coated from the solution contains PEDOT:PSS, which is blended with siloxanes because the polymerization of TEOS takes place via the hydrolysis reaction. This siloxane blending suppresses the MAI-induced reducing reaction and upward energy-level shift of PEDOT:PSS. Using the siloxane-blended PEDOT:PSS HTL in PSCs leads a similar to 1.3-fold increase in power conversion efficiencies of iodide-based PSCs from the original similar to 10.58% to similar to 13.65%.

引用

页码：14590 / 14598

页数：9

共 60 条

[1] Universal passivation strategy to slot-die printed SnO2 for hysteresis-free efficient flexible perovskite solar module [J].