EE-IS Seminar

Seminar des Instituts für Silizium-Photovoltaik WS 2018/19

Das Seminar findet üblicherweise Donnerstags

am  Wilhelm-Conrad-Röntgen Campus, EE-IS Kekuléstr.5, im 1. OG. Raum 227 statt.

Es beginnt um 10:00 Uhr bei Kaffee und Keksen.

Die Vorträge beginnen um 10:15.


PV seminar

Dr. Janardan Dagar will speak about

Interface modification via alkali metal salts for both n-i-p and p-i-n perovskite solar cells and modules

21th of February,

in the Si-Photovoltaics Lecture Hall.

(WCRC Adlershof, 12.8, Kekulestr. 5, 12489 Berlin)

Coffee and cookies will be served at 10:00 a.m.


Organic–inorganic hybrid perovskite are of great promise, showing a high compatibility with perovskite-based tandem devices and modules. However, transport layer(TL)/perovskite interface defects cause detrimental carrier recombination which are responsible for reduced device performance and high hysteresis. Here, we report Interface modification with alkali salts of N-i-P and P-i-N hybrid perovskite solar cells. The efficient defect passivation significantly suppresses the recombination at the TL/perovskite interface, contributing to enhance the solar cell performance, and the elimination of hysteresis. While measured solar cells with alkali metal (potassium) treatment delivered more than 19% efficiency. We also fabricated perovskite mini-module with the same approach and obtained high performing modules. This approach aims at developing the concept of defect engineering, which can be expanded to multiple-element passivation from monoelement counterparts using simple and low-cost inorganic materials.

EMIL Seminar des Instituts für Nanospectroscopy SS 2017

Neben den regulären Seminarterminen gibt es gemeinsame Veranstaltungen mit dem Institut EM ISPEK. Diese sind im Seminarplan gekennzeichnet.

Das Seminar findet üblicherweise Montags am  Wilhelm-Conrad-Röntgen Campus, EE-IS Kekuléstr.5, im 1. OG. Raum 227 statt.

Beginn: Monday 14:00